Tools

Park's Compact Crank Puller is used to remove Shimano Octalink, ISIS Drive and square-taper cranksets. It includes 2 rotating tips (16.3 and 11.3mm) to make the job easy. This is a great tool for your travel and home tool kit.

Park Tool introduced the bicycle world to the 3-way hex wrench set over 30 years ago. Our 3-way wrenches fit perfectly in the palm of the hand and provide excellent leverage, making them a favorite of countless shop mechanics worldwide. AWS-1 FEATURES - 4mm, 5mm, and 6mm hex set - Wrenches made from industrial tool steel, through hardened and tempered for long life - Chamfered tips for a perfect fit

A professional quality shop chain tool that works on 5-speed to 12-speed Road and Mountain Bike derailleur chains*, including SRAM AXS 12 speed, as well as 1/8-inch and 3/16-inch chains. The CT-3.3 features an adjustable locating shelf so it works on any width chain to remove and install chain rivets. Built to last and easy to use, the CT-3.3 features a comfortable handle, investment cast steel body and replaceable driving pin (#CTP). *The CT-3.3 will install, but not peen, Campagnolo 11 and 12-speed chain rivets. - Comfortable T-handle - Replaceable driving pin (CTP) - Investment cast steel body - Adjustable locating shelf

Park's Hex Wrench Set offers all the popular Allen wrenches (1.5, 2, 2.5, 3, 4, 5 and 6mm) in a convenient fold-up unit. The tool tips are chamfered for a positive grip and the one-piece fiber-reinforced-resin handle is light, comfortable, slip resistant and 40% stronger than steel.

To prevent poor shifting and uneven drivetrain wear, most manufacturers recommend chain replacement at or before 1% stretch. Now you can quickly and accurately determine the wear and stretch of any chain with Park's Chain Checker. Simply insert the Chain Checker’s pins into 2 links, press the swingarm gauge tight, and then check the gauge window for an accurate reading!

Park’s Professional Cable And Housing Cutter is specifically for use on derailleur and brake cables and housing. It even makes quick work of hard-to-cut shift-cable housing. Its cold-forged, heat-treated-steel handles won't bend and its precision-ground jaws cut perfectly every time. Its dual-density molded grips are specially contoured for superior comfort and control. Plus, there’s a built-in cable-end crimper and a forming hole for reforming housing ends.

A favorite of shop mechanics for over 30 year's, Park's CCP-22 Crank Puller removes crankarms that feature square tapers, and those that fit on Power Drive and Power Spline bottom bracket interfaces. The long, comfortable, built-in handle and fine thread provide the leverage needed to remove even the tightest crankarms. And, there's a rotating tip to ensure smooth operation and long life.

Park's Mini Chain Brute Chain Tool goes anywhere and features a V-shaped handle, a super-strong replaceable pin, and fine threads to make chain removal and installation a breeze. The CT-5 works on any derailleur chain, including Shimano Hyperglide and 9-, 10-, and 11-speed. It works for loosening tight links, too.

Park's BBT-18 is a heavy duty, investment cast tool for installing and removing all Shimano, ISIS Drive, and ISIS Overdrive 8-notch bottom bracket cups.

Park's Chainring Nut Wrench makes chainring bolt installation and removal easy. It securely holds the slotted nut to prevent spinning when tightening or loosening the bolt. And, it's double-ended to fit most slotted-type nuts, including Campagnolo chainring bolt nuts.

• Updated to be stronger, smoother, and more versatile • Features a new material and redesigned tip for easier entry into just about any tire, including tubeless • The unique design lifts the tire away from the rim and features a spoke hook to use when multiple levers are needed • This set includes 3 tire levers

Cleans bicycle chain quickly, easily, and effectively — without the hassle and mess of removing the chain from the bike. The Cyclone uses a large solvent reservoir, hundreds of rotating bristles, and a two-step cleaning process to get chains really clean, improve shifting performance, and extend the life of the chain and other expensive drivetrain parts. - Works with all multi-speed bikes (5, 6, 7, 8, 9, 10, 11, and 12-speed) as well as some single-speed models and e-bikes - Strong magnet at the bottom of the fluid reservoir holds metallic particles scrubbed from the chain - Special wicking sponge draws solvent from the chain as it exits, minimizing drips and mess - Sturdy handle makes the Cyclone easy to use and control - Holds 2 fluid ounces (59ml) of solvent

Park's Home Mechanic Pedal Wrench is great for your home workshop and event tool box. This top-quality 15mm pedal wrench provides the leverage you need to remove stubborn pedals. It's made to last from heat-treated steel, and the handle has a vinyl grip for comfort.

Park's Gear Clean Brush has a handle on one end with a curved, serrated edge perfect for cleaning between cassette cogs. The other end's tough nylon bristles are ideal for cleaning the derailleurs, chain and other drivetrain parts to keep them clean and prevent premature wear. It also works great on brakes and other components that collect dirt and grime. The GearClean easily fits in a toolbox or pack.

Many chains use a master link that allows the chain to be installed and removed by hand. While master links don't require traditional chain tools, over time, dirt and corrosion can make it difficult to separate them by hand. Park's Master Link Pliers make removing and installing these master links quick and easy. Simply insert the specially sized jaws into the link and squeeze the vinyl-coated handles!

Park's Heavy-Duty Tire Levers handle the toughest tire-and-rim combinations including difficult downhill and freestyle tires. Their specially designed tips engage the tire bead so it can be removed with just two levers. Plus, these beefy, forged-steel levers are a full 8-inches long for superior leverage.

An economical option for safely and accurately tightening fasteners to proper torque specifications. With a simple gauge readout, the TW-1.2 is intuitive and easy to use, and applies up to 14 Nm of torque to any fastener or component with left or right-handed threads. Perfect for low-torque applications such as stem bolts, levers, and carbon fiber components. 3/8" drive for compatibility with all Park Tool sockets, bits, and crow feet. - 0 to 14 Newton meter (0 to 140 inch-pound) range - 3/8" drive - Reads and registers torque values for both left hand and right hand threading - Length: 11.5" (292 mm)

Park's Valve Core Tool is great for tightening, removing and installing Schrader and Presta valve cores (the cores are inside the valve), and also Presta valve extenders that have 5mm wrench flats. It's a handy tool to save a tube when all that's wrong is a broken valve, and it also lets you remove valves to easily insert sealant.

A great way to hold small parts, tools and components during a repair, Park Tool's Benchtop Overhaul Mat features multiple small pockets and one large work area. It's perfect for suspension work or to organize parts for installation. • Made of a rubber-like PVC • Cleans easily and looks great on any bench • Measures: 14.7” x 7” (38cm x 18cm)

Park's I-Beam Mini Fold-Up Hex Wrench/Screwdriver/Torx Set with Chain Tool includes 1.5, 2, 2.5, 3, 4, 5, and 6mm Allen wrenches, a socket 8mm Allen, a regular screwdriver, a T25 Torx tool (for disc-rotor bolts), a tire lever, spoke wrenches and a chain tool. The I-Beam conveniently fits in pockets and packs, too.

Park's Oversize Adjustable Saw Guide guides a hacksaw so that you can accurately cut fork steerers, airfoil-shaped seatposts and more. The guide is made to be held in a vise and it has hardened-steel cutting slots and a secure clamp for the part you're cutting so that you make a perfect cut every time. The guide is compatible with round tubes from 1 to 1-3/4 inches in diameter and airfoil shaped parts up to 3.5 inches long. There are slots for standard and carbon-specific saw blades.

Park's Cone Wrenches are made of durable tool steel and are nice and thin to fit on the small-clearance cones found on hubs and other bearing assemblies. Plus, they work as regular wrenches, too. They feature Park's special Y heads that put more material where it's needed for excellent durability and strength. This 23mm size fits Shimano 15mm through-axle hubs. Some applications require at least 2 cone wrenches. If you have questions please contact us and we can recommend the correct sizes for your needs.

Park's Shop Screwdrivers are pro-quality tools featuring durable and precise heat-treated chrome-vanadium tips and shafts and dual-density handles for an excellent grip.

Made from tough steel and reinforced with extra material at the highly stressed wrench openings, Park’s shop-quality Pedal Wrench is built to easily install and remove pedals, and to last and last. It has 15mm and 9/16-inch precision openings to fit all pedals. And it boasts a long, round, vinyl-coated handle that won’t dig into your hand and provides optimum leverage. There's even a hole in the end of the wrench for hanging it on your toolboard.

Shorten your steerer, trim your handlebars and always make sure to measure twice with Park's Hack Saw. It features an outstandingly rigid aluminum die-cast frame with a blade tension adjuster and a superbly comfortable handle. The SAW-1 comes with one blade and accepts all 12-inch (300mm) replacement blades.

Park's Spoke Wrench For Shimano Wheel Systems is the right tool for the job. It's made of durable tool steel and features 4.4mm and 3.75mm openings to fit all Shimano Wheel System nipples located at the hub and at the rim. It's vinyl-coated for a great grip, too.

The RT-2 Head Cup Remover makes headset cup removal easy. The tool is pulled through the frame until the flared ends snap in behind the cup. A blow on the tool head removes the cup. • Designed for the 1-1/4 inch and 1-1/2 inch headest standards • Also easily removes cups on one-piece cranks • Strong, heat-treated alloy steel with a nickel finish SHIS Terminology: The RT-2 will remove cups of ZS44, ZS49, ZS55, ZS56, EC49 and EC56 headsets.

This handy shop aid is ideal for sizing spokes, ball bearings, and crank cotters. To use, just hang the head of the spoke in the oblong hole and read its length on the scale. For crank cotters and ball bearings it works just like a gauge for drill bits. • Has both metric and fractional spoke length markings • Anodized aluminum with embossed markings to allow easy reading and long life

Park Tool's Utility Pick Set is a set of three unique, multi-purpose picks ideal for a wide variety of detail work. Features: • Aluminum handle with magnet • Picks are replaceable, cold formed, heat treated and polished high carbon steel • Set includes 1-straight, 1-hook and 1-90 degree pick

Frame Taps will become a lifesaver at some time for virtually every mechanic. As with all Park Tool Taps, these are made of high carbon steel and are precision ground. Park Tool Frame Taps cut easily and fit conventional tap handles. The TAP-10 is a 10mm x 1mm thread, the same thread for the derailleur hanger.

Made for the rigors of everyday shop use, this adjustable tap handle fits many common bicycle taps. • Fits most metric taps from M4-M12 • Fits most standard taps from #8-9/16”

Park Tool's SW-11 is a forged, double-ended spoke wrench designed to fit select Campagnolo wheels. Precision machined, plated and vinyl dipped for comfort and long life. It fits Campagnolo 5.5mm and 6.0mm hex spoke nipples.

The MT-10, 20, 30 and 40 are high quality folding take-along tools that feature forged aluminum side plates, a mix of hardened and plated tools, and smooth ergonomic operation.

Upgrades the DT-5 to the DT-5.2. - Four telescoping axle adaptors - Two stand off studs for Flat Mount alignment - 12mm front fork thru axle sleeve

Professional quality ring plier made from forged, heat-treated cro-moly steel with a return spring and vinyl dipped grips. The RP-5 has 1.7mm tips on straight blades for small, internal snap rings. The tips open from 22mm to 0 (tips touching).

Designed and built with the specific needs of the bike mechanic in mind. The RP-SET.2 includes five professional quality pliers for internal snap rings and one for external snap rings. Pliers are made from forged, heat treated cro-moly steel with a return spring and vinyl dipped grips. RP-1: .9mm straight internal. Opens from 22mm down to 0 (tips touching) RP-2: 1.3mm bent internal. Opens from 22mm down to 2mm (center to center) RP-3: 1.3mm bent external. Opens from 2mm (center to center) up to 18mm RP-4: 1.7mm bent internal. Opens from 21mm down to 2mm (center to center) RP-5: 1.7mm straight internal; Opens from 25mm down to 0 (tips touching)

Park Tool offers premium-quality reamers for nearly any bicycle standard. The reamers below are designed to quickly, accurately, and precisely ream headtubes when used with Park's Head Tube Reamer (HTR), ensuring a perfect headset fit and prfoessional-quality bicycle build. Choose the correct reamer for your application using the following information: - 751.2: This reamer is sized to 30.1mm. This allows a 0.1mm interference fit when pressing the 30.2mm headset of the “Euro” one-inch standard. - 754.2: This reamer is sized to 33.9mm. The allows a 0.1mm interference fit when pressing the 34.0mm headset of the 1-1/8" standard. - 788: This reamer is sized to 43.95mm. It reams head tubes to accept “internal” headset cups with 44.05 - 44.10mm O.D. (1-1/8 ZS standard). It is used with Park Tool's 690-XL Facing Cutter and 750 Centering Cone. - 738: This reamer is sized to 52.1mm. It is used to ream head tubes using the 1-1/2" integrated headset standard. It is used with Park Tool's 690-XL Facing Cutter and 750.2 Centering Cone Adapter. - 789: This reamer is sized to 55.95mm. It is used to ream head tubes to accept “internal” headset cups with 56.00–56.10mm O.D. (1-1/2 ZS standard). It is used with Park Tool's 690-XXL Facing Cutter and #750 Centering Cone Adaptor. - 799: This reamer is sized to 47mm. It is used for cutting the lower head tube on frames using an IS47 bearing for a 1-1/4" integrated headset. It cuts a 45-degree bearing set shoulder.

Dial Indicator Set bolts directly to the DT-3 allowing for greater accuracy and a way to measure results. Now includes an elongated, cylindrical tip that is large enough to work around voids in most rotors.

Heat treated alloy tool steel, one inch base fits wrench or bench vise. Thin wall construction allows use without removal of cones and locknuts. The FR-5.2G has 12 splines that are approximately 23.4mm across. - Fits Shimano, SRAM, SunRace, SunTour, Chris King and other cassette lockrings - Fits the SRAM XX1 11-speed cassettes - Also Fits Shimano disc brake lockrings - Guide pin stabilizes tool

Designed and built specifically for a wide variety of bicycle Torx compatible work, the THT-1 is a set of eight common sizes of professional quality T-Handle star-shaped wrenches built for speed, efficiency, leverage and a perfect fit. Soon to become your favorite Torx compatible set, the THT-1 includes a handy tool holder that mounts to any vertical surface, including pegboard and solid surfaces (fasteners not included). - Carefully selected combination of Chrome Vanadium and S-2 tool steels - T6, T8, T10, T15, T20, T25, T30 and T40 Torx compatible wrenches included - Unique anodized aluminum Speed Spinner makes running long bolts in and out quick and effortless - Sliding T-handle creates increased leverage and multiple access positions - Tool holder is included with the set and mounts to any wall, bench or tool box, perfectly positioning each wrench for easy access and storage

Having trouble getting at internal spoke nipples? Park's Square Socket Internal Nipple Spoke Wrench comes to your rescue. The extra-long socket fits recessed nipples on most deep-section aero wheels. And, the ergonomic handle is comfortable even after you've built wheels for the entire team.

Choose the perfect tool for the job with Park's P-Handled Hex Wrenches. These top-shelf Allen wrenches come with offset handles made from durable nylon in a comfortable, ergonomic design. They are made of chrome vanadium for exceptional durability. The long shafts feature Bondhus heads for accessing hard-to-reach bolts and the short ends are chamfered for extra grip and high-torque applications.

This combination chain whip and freewheel / lockring remover wrench is heat treated to prevent bending and flexing, with a molded handle for comfort. - 1/8-inch model works on 1/8-inch chains and sprockets - 1-inch (25.4mm) box-end wrench fits Park Tool Freewheel/Cassette Lockring Tools - Features hardened pins to keep the chain in place

Professional quality T-Handle star-shaped wrench built for speed, efficiency, leverage and a perfect fit. - Carefully selected combination of Chrome Vanadium and S-2 tool steels - Unique anodized aluminum Speed Spinner makes running long bolts in and out quick and effortless - Sliding T-handle creates increased leverage and multiple access positions

The TWB-36 is a crow foot style wrench used with any 3/8-inch drive torque wrench and drive tools with 36mm wrench flats such as Park Tool LRT-2, LRT-3, LRT-4 and BBT-18 to verify components are torqued to the correct specification. Constructed from heat-treated 4130 laser-cut steel and plated for long life.

The MTC-20 features a super strong, composite, multi-position handle, with hardened and plated tools and smooth ergonomic operation. Lightweight, compact, and perfect to carry along. - 3, 4, 5 and 8mm hex wrenches - T25 Torx compatible driver - Combo cross/straight tip screwdriver - CO2 cartridge inflator adaptor - Key ring holder - Weight: 74g (2.61 ounces)

The MTC-30 features a super strong, composite, multi-position handle, with hardened and plated tools and smooth ergonomic operation. Lightweight, compact, and perfect to carry along. - 2.5, 3, 4, 5, 6 and 8mm hex wrenches - T25 & T30 Torx compatible drivers - Combo cross/straight tip screwdriver - 8 & 15mm box wrenches - Key ring holder - Weight: 131g (4.62 ounces)

The 4th edition of the Big Blue Book of Bicycle Repair is updated with the latest information, procedures and techniques and covers everything from minor adjustments to complete overhauls. The BBB-4 features clear, step-by-step instructions, high quality color photos and useful charts and graphs to thoroughly explain and demonstrate hundreds of repairs. Written by one of the world’s leading authorities on bicycle repair and maintenance, Park Tool Director of Education, Calvin Jones, the Big Blue Book is the perfect reference guide for nearly any level mechanic and every bike. New information and topics included in the BBB 4th edition: - 12-speed and 1x drivetrains - Tubeless tires - Disc brakes - Electronic shifting - New wheel building content - Updated headset and bottom bracket standards - Updated torque specifications - Updated troubleshooting tables

A professional level tool set designed and built for portability. The EK-3 is perfect for team and event mechanics or the home mechanic who wants the ultimate portable tool kit. Neatly organized in Park Tool's world-famous BX-2.2 Blue Box Tool Case, this tool kit features 56 of their best tools to do hundreds of repair and maintenance tasks. Plus, the bomb-proof Blue Box features pockets, pouches, straps and open space to add more tools and parts! Kit Includes: - ATD-1.2 Adjustable Torque Driver - AWS-1 Three-Way Hex Wrench Set: 4, 5, 6mm - BBT-9 Bottom Bracket Tool for 16-Notch External Bearing Cups - BBT-32 Bottom Bracket Tool for 20 Notch Shimano and ISIS Drive - BO-2 Bottle Opener - CC-4 Chain Checker - CN-10 Professional Cable and Housing Cutter - CNW-2 Chainring Nut Wrench - CP-1.2 Cassette Pliers - CT-3.3 Chain Tool - CWP-7 Compact Universal Crank Puller - DCW-1 Double-Ended Cone Wrench: 13/14mm (2) - DCW-2 Double-Ended Cone Wrench: 15/16mm (2) - DCW-3 Double-Ended Cone Wrench: 17/18mm - DSD-2 Derailleur Screwdriver: Cross Tip - DSD-4 Derailleur Screwdriver: Flat Blade - DT-2 Rotor Truing Fork - FR-5.2H Cassette Lockring Tool with Handle - GSC-1 GearClean Brush - HCW-15 36mm/32mm Headset Wrench - HMR-8 Shop Hammer - HT-8 8mm Hex Tool - HXS-1.2 Hex Wrench Set - LP-7 Utility Pliers - MLP-1.2 Master Link Pliers - MW-8 Metric Wrench: 8mm - MW-9 Metric Wrench: 9mm - MW-10 Metric Wrench: 10mm - PAW-12 12" Adjustable Wrench - PW-4 Professional Pedal Wrench - RR-12 Tape Measure - SW-0 Precision Spoke Wrench: .127" - SW-2 Precision Spoke Wrench: .136" - SZR-1 Shop Scissors - TL-6.2 Steel Core Tire Levers - TWS-1 Torx Compatible Wrench Set

The SHX-1 Slide Hammer Extractor is a professional solution specifically designed for removing press fit cartridge bearings from bicycle components. Utilizing expanding collets, an extendable shaft, and a substantial (960g) slide hammer, the SHX-1 securely yet forcefully drives out cartridge bearings with targeted impact. The SHX-1 is compatible with cartridge bearings with inner diameters from 6 to 32 millimeters, covering most press fit applications found on bicycles including hubs, suspension linkages, and bottom brackets. - Set of 5 expanding collets covers most bicycle bearing IDs from 6mm to 32mm - Slide hammer shaft is extendable from 6.5" (165mm) to 13" (233mm) for additional force when needed - Organized in a convenient storage case

An alignment gauge is essential for diagnosing and repairing bent or misaligned derailleur hangers, often the source of shifting problems. The DAG-3 features an all-new design, engineered and built to be light, accurate, and versatile. The sliding indicator can measure derailleur hanger alignment against bicycle rims of any size and rotates out of the way to clear seat stays, racks, and other obstacles, allowing 360-degree measurement. The long, precision-extruded aluminum body is built to exacting tolerances and provides ample leverage for making adjustments. - Compatible with 16" to 29"+ wheels (ISO/ETRTO rim sizes from 317 to 630+) - Replaceable M10 threaded tip - Low-profile head fits low clearance thru-axle derailleur hangers and Shimano Direct Mount hangers - Length: 16.5" (420mm) - Weight: 22.75 oz. (645g)

The 2197 is an add-on accessory for the Park Tool DT-5 and DT-5.2 Disc Brake Mount Facing Set to enable easier and more efficient facing of disc brake mounts on carbon fiber frames. Features a brazed-on diamond grit surface that is over 100 times more durable and effective on carbon fiber than the cutter included with the DT-5.2. The 2197 sits between the cutter of the DT-5.2 and the brake mount, and smoothly and evenly grinds the mounting surface until it is flat and properly perpendicular to the rotor. NOTE: The 2197 is intended for facing carbon fiber only. Aluminum, steel, and titanium disc brake mounts should be faced using the #2171 facing cutter included with the DT-5.2. For carbon frames that feature aluminum inserts (with a carbon/aluminum hybrid mounting surface), use the #2197. When machining carbon fiber, regularly apply water (or a similar solution) to the cutting surface.

The DTD-8 is a precision Torx®-compatible driver machined to exact standards to ensure a perfect fit on compatible component fasteners. The stubby size of the DTD-8 provides extra control during removal and installation of delicate hydraulic brake fittings. Featuring an ergonomic CNC-machined hard-anodized 6061 aluminum handle and a precision T8 tip. - T8 Torx®-compatible wrench - Not intended for high-torque applications - Total length: 3.75" (95mm) - Shaft length: 1.7" (43mm) - Weight: 2.22 oz. (63g)

The small and handy RR-12.2 Tape Measure features a tough composite housing with an integrated belt clip and both metric and SAE readings up to 350 centimeters or 12 feet. Measurement can be locked in place using the thumb lock or the handy quick-stop button. - RR-12.2 features a new body design with a handy-quick stop button on the bottom, allowing the user to temporarily lock the tape into place with their index finger - Maximum length: 350 cm | 12 ft. - Markings: 1 mm | 1/32" (up to 6") | 1/16" (over 6") - The RR-12.2 features a new body design with a handy-quick stop button on the bottom, allowing the user to temporarily lock the tape into place with their index finger - Metric and SAE readings up to 350 centimeters or 12 feet - Markings: 1 mm | 1/32" (up to 6") | 1/16" (over 6")

Shop quality L-shaped, high torque industrial steel Torx compatible wrenches. Featuring chamfered tips, tight tolerances and a handy portable tool holder for easy access. Includes: T9, T10, T15, T20, T25, T27, T30 and T40.

Updated to fit current 12-speed cassettes, this combination chain whip and freewheel / lockring remover wrench is heat treated to prevent bending, flexing and wear and features a long, molded handle in addition to a built in hex shaped driver. - Works on 5- to 12-speed road and mountain bike cassettes and freewheels - 1-inch (25.4mm) box-end wrench fits Park Tool Freewheel / Cassette Lockring Tools - Features hardened pins to keep the chain in place

Securely holds the TS-4 Professional Wheel Truing Stand and tilts 20 degrees from front to back for comfortable wheel work and sight lines at any bench height. Features a wide, sturdy base, small parts compartments, spoke wrench holders, and is constructed of a durable composite material.

Simple and economical, Park's Home Mechanic Bearing Cup Press is the perfect addition to your toolbox. With a few quick twists it easily installs all sizes of headset cups and one-piece bottom bracket cups.

The BK-UK includes six new and revised parts for the Park Tool BKD-1 and BKM-1 Hydraulic Brake Bleed Kits, allowing for compatibility with the latest brake models from popular manufacturers. Includes: - Part #2600A (x2) — M4 x 0.8 adaptor for use with SRAM DB8, Trick Stuff, and Campagnolo mineral oil brake systems - Part #2588.2 — Thin-walled hose compression sleeve for internal bleed nipples, such as those found on Shimano mineral oil brake systems - Part #2574A — Hose assembly with integrated fitting for bleed nipples such as those found on Shimano mineral oil brake systems - Part #2615-2 (x2) — 11 mm bleed blocks for use with Hayes DOT brake systems All parts also available individually. NOTE: The seals on each part are designed for one type of fluid — DOT fluid or mineral oil — and should be used only on the systems they were intended for. DOT fluid and mineral oil should never be mixed in the brake system or in their respective service tools. Cross-contamination of brake fluid may cause seal failure which may result in brake failure.

Made from high precision, hardened Cro-Moly steel, Park's Bottom Bracket Tool (External Bearing) can be turned with a 3/8" drive wrench, 1" wrench, or Park Tool FRW-1 Freewheel Remover Wrench (each sold separately).