A worn chain shifts poorly and wears sprockets at an accelerated rate. Park Tool's Chain-Wear Indicator is a “go-no go” gauge designed to accurately indicate when a chain reaches .5% and .75%, the points at which most chain manufacturers suggest replacement. The updated CC-3.2 is longer, more accurate and features permanent measurement markings.

The BKM-1 Hydraulic Brake Bleed Kit will bleed most models of mineral-oil-based hydraulic brakes. Hydraulic systems need bleeding to remove any air bubbles and to inject new, clean fluid. - Designed and built for home use and for the rigors of daily commercial use - Includes two syringes, hoses with shutoff clips, multi-size bleed blocks, bleed funnel and a unique attachable syringe mount - Housed in a rugged reusable case - Machined 7075 aluminum fittings to service Shimano, Magura, Clarks, Promax, Tektro, TRP and other brands of mineral-oil-based hydraulic brake systems - Replacement parts available - Brake fluid not included

Park's Open Ended Metric Wrench is a thin wrench with 9 and 11mm openings so it's perfect for working on the pivot-bolt nuts on sidepull brakes (and derailleurs with hex nuts). This useful tool is nickel plated for durability.

Removes and installs crank caps on Shimano® Hollowtech II® cranks. Includes built in hook to lift the safety plate, speeding crank removal. Steel, investment cast body provides good leverage and includes an option to use with an 8mm hex wrench for removing seized caps.

The 37-piece SBS-3 from Park Tool is a comprehensive, shop-quality set of sockets, hex bits, and Torx compatible drivers selected specifically to tackle a wide variety of common bike repair needs. The SBS-3 also includes flat-faced sockets in common sizes for work on suspension forks. Ideal for use with Park Tool torque wrenches, the 3/8" drive bits and sockets are forged from tough, chrome vanadium steel and nickel chrome plated for lasting durability.

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 CC-4 is a drop-in style gauge that measures bicycle chain wear. The laser cut CC-4 accurately measures a long section of chain and strategically comes in contact with the chain in three places, quickly and easily taking the guesswork out of knowing when chain replacement is necessary. A worn chain will cause poor shifting as well as accelerate drivetrain wear. The tool works on any 5 to 12-speed derailleur chain (including SRAM AXS) and is designed to accurately indicate when a chain reaches .5% and .75% wear, the points at which most chain manufacturers suggest replacement.

Bottom brackets have some of the highest torque specs of any component found on a bicycle. Despite this, some bottom bracket cups feature tool fittings that allow mere millimeters of engagement, which can be a problem when attempting removal or installation. Solution: the Park Tool Bottom Bracket Tool Retaining System. Used in conjunction with nearly any Park Tool bottom bracket tool, the BBT-RS uses a spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. The BBT-RS can be configured for use with the vast majority of threaded and thread-together bottom bracket standards. The BBT-RS features an M8 threaded rod and a double-sided adapter nut with M12 and M15 threads, allowing it to thread directly into any compatible cartridge bottom bracket. The M15 adapter can also be used to install any of Park Tool's nine aluminum bottom bracket tools, all of which feature integrated threading for use with the BBT-RS. - Washer diameter: 57 mm (2.25") - Rod length: 175 mm (6.9") - Rod threading: M8 x 1.0 - Adapter nut threading: M12 x 1.0 & M15 x 1.0 Compatible with the following bottom bracket styles: - Threaded cup - Thread-together - Cartridge - Cup-and-cone Compatible with the following bottom bracket tools: - The following Park Tool socket-style aluminum bottom bracket tools: - BBT-27.3 - BBT-35-12 - BBT-35-36 - BBT-47-12 - BBT-47-16 - BBT-49.3 - BBT-59.3 - BBT-69.3 - BBT-79.3 - Wrench-style bottom bracket tools with a handle (e.g. Park Tool BBT-9, BBT-29, HCW-4) - Bottom bracket tools with external wrench flats (e.g. Park Tool BBT-19.2, BBT-22)

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.

• 15mm L-shaped hex wrench to fit Shimano rear thru-axle freehubs • Through-hardened industrial quality steel • Chamfered tips for a precision fit

Park Tool's 750.2 Centering Cone Adaptor increases the size of the centering cone of the HTR-1 and HTR-1B Headtube Reaming and Facing Sets. The 750.2 will allow you to use the HTR-1(B) to ream and face head tubes designed to accept IS, ZS, and 1.5-inch EC headset standards. Before reaming or facing, make sure you have the correct cutting tool and pilot for the headset standard(s) you are using. Please refer to our product pages for cutters and pilots for this detailed compatibility information.

Designed and built to remove and install Shimano direct mount chainring lockrings found on XTR 9120, XT 8120, MT900, and other Shimano direct mount systems. Precisely CNC machined from 6061 aluminum for a perfect fit and to prevent marring expensive parts. - Machined flat face for optimal lockring engagement - For lockrings with 41mm outside diameter and 16 notches - 36mm hex drive to be used with Park Tool TWB-36 Crow Foot and a torque wrench to properly measure torque - 6061 aluminum construction

The MTC-25 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, 6 and 8mm hex wrenches - T25 & T30 Torx compatible driver - Combo cross/straight tip screwdriver - Key ring holder - Weight: 94g (3.32 ounces)

Park's Dial Indicator Gauge Set mounts to their TS-2 or TS-2.2 Truing Stand (sold separately). The set makes it easy to view and correct a wheel's lateral and radial run-out within a tolerance of .01mm. Compared to going by the gap between the truing stand pointer and rim, having gauges that put a number on the clearance makes wheel truing easier and more accurate.

Park Tool's Frame and Fork Straightener is a versatile and productive tool. Its open hook design enables it to straighten not only frames and forks, but also cranks and handlebars and it features vinyl coating on the hook and fulcrum pad to protect painted surfaces. The FFS-2's hook offers 8 inches of fore-aft adjustment and can fit a frame or fork tube of up to 1-3/4 inches in diameter.

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.

Park Tool is world-renowned for their bicycle industry tools, and their pumps are no exception. Keep yours up to speed and working smoothly with these rebuild kits. - 1096K: Contains one #1081 head as well as one #1075 plunger gasket for older PFP-2 and first generation PFP-4 floor pumps. Also compatible with second-generation PFP-4 floor pumps. - 1096X: Contains one #1096R head, one #1472 fitting, and one #1075 plunger gasket for second generation PFP-4 floor pumps. Also compatible with PFP-2 and first-generation PFP-4 floor pumps. - 1096Z: Contains one #1096R head, one #1472 fitting, and one #1087 plunger gasket for PFP-5 and PFP-7 floor pumps. Also compatible with PFP-3, PFP-6, and PFP-8 floor pumps.

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.

Park Tool's professional-quality Snap Ring Pliers are made from forged, heat-treated cro-moly steel with a return spring and vinyl-dipped grips. The RP-4 has 1.7mm tips on bent nose blades for larger, internal snap rings. The tips open from 21mm down to 2mm (center to center).

Park Tool's Pump Rebuild Kit contains one #1081 head as well as one #1087 plunger gasket for their PFP-3, PFP-6 and PFP-8 floor pumps.

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 16-notch tool fittings, including Shimano, SRAM GXP, Chris King, Campagnolo, and many others. The BBT-69.3 can also be used to remove and install 16-notch disc brake rotor lockrings. Manufactured in-house by Park Tool, anodized for easy identification and featuring a ratchet/torque wrench-compatible 3/8" drive. The BBT-69.3 features integrated threads for full compatibility with the Park Tool BBT-RS Bottom Bracket Tool Retaining System (sold separately). The BBT-RS uses an adjustable spring-based tension system to apply consistent, adjustable pressure to the tool, ensuring full engagement with the tool fitting and preventing slippage. - Fits 16-notch tool fittings with a major diameter (outside of notches) of 44–45 mm and a minor diameter (inside of notches) of 42.7 mm, including: - Shimano BB80, BB5700, XT BB70, BB51, and previous external bearing threaded cups - Threaded bottom bracket cups from Campagnolo, Chris King, FSA MegaExo, Hope, SRAM/Truvativ GXP, Race Face X-type, Surly, Wheels, Fulcrum, and others - 16-notch disc brake rotor lockrings - 16-notch Bafang BBSH, BBS02 mid-drive motor lockrings - 3/8" drive fitting

Park's Tire and Tube Repair Kit is a riding essential. It features Park’s glueless Super Patch Kit and strong nylon Tire Levers for quick and easy flat repairs. The kit comes with 3 levers, 6 patches in a small container, and a piece of sandpaper (for roughing the tube to prepare it for patching).

Park Tool's Fork Threading Set is designed for cutting new threads and for chasing existing threads on fork columns that are not chromed. The FTS-1's expandable cutting dies are made from the highest quality high-speed steel for precision cutting and long life. The unique thread guide system used with the FTS-1 is specially designed to allow the metal chips and shavings that result during use to fall completely through the guide, preventing damage to the fork threads and the tool. The FTS-1 includes: • Die handles • 1" x 24 tpi cutting die (Part #606) • 1" cutting guide (Part #610) Accessory dies and guides are also available separately: • 1-1/8" x 26 die (Part #607) • 1-1/8" guide (Part #611) • 1-1/4" x 26 die (Part #608) • 1-1/4" guide (Part #612) Die handles fit all three sizes of dies and guides.

World-famous Park Tool quality wrapped up in a great set of metric combination wrenches. Forged from chrome vanadium steel, chrome plated, meticulously polished, then center dipped in Park Tool blue vinyl for a positive grip.

Park's Hydraulic Brake Piston Press is used to set or reset the piston(s) inside hydraulic disc brake calipers during installation, maintenance and repair. Just push it into the caliper to wedge the piston into place. It's made of tough tool steel with a comfortable and oversize rubber handle for a great grip.

Park's Hex Wrenches are every mechanic's best friend. They are constructed from industrial quality steel for durability and feature chamfered tips for a precision fit. And, their convenient L shape is perfect for jobs that require lots of leverage or for getting to hard-to-reach bolts.

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.

The DTD-10 is a precision component Torx®-compatible driver machined to exact standards to ensure a perfect fit on compatible component fasteners. The stubby size of the DTD-10 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 T10 tip. - T10 Torx®-compatible wrench - Not intended for high-torque applications - Total length: 3.75" (95mm) - Shaft length: 1.7" (43mm) - Weight: 2.22 oz. (63g)

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. Most applications require at least 2 cone wrenches. If you have questions please contact us and we can recommend the correct sizes for your needs.

The Bottom Bracket Wrench removes and installs Shimano Hollowtech II, Race Face X-type, FSA MegaExo, Campagnolo Ultra-Torque and TruVativ Giga X-pipe bottom brackets. Laser cut for a precise fit, one end of the BBT-9 securely engages the 16 cup notches, while the other end engages the 8 internal splines of the crankarm adjustment cap.