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ACS Crossfire BB Cup Set, Black
ACS Crossfire BB Cup Set, Black

Forged and CNC-machined aluminum with precision sealed bearings for 2-pc cranks and 24mm spindles BSA 1.37"x24T for 68/73mm shells … read more

31% offretail $54.95 your price $37.99

BuyBuyPART NUM 120402
ACS 4-prong Universal Tool, For 4-slot Freewheels
ACS 4-prong Universal Tool, For 4-slot Freewheels

AM-5205: universal 4-prong that fit Claws, Fat, Southpaw, Shimano, Dicta, and other 4-slot freewheels Item Specifications description: … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

36% offretail $21.95 your price $13.99

BuyBuyPART NUM 517359
ACS Maindrive Headset, IS42/25.4 - IS42/26 Black
ACS Maindrive Headset, IS42/25.4 - IS42/26 Black

CNC machined alloy tops with sealed mechanism 45/45 degree bearings Available as 1" (25.4mm), 1-1/8"(28.6mm) and 1 1/8" to 1" reducer … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $19.99

BuyBuyPART NUM 590612
ACS Maindrive Headset, EC34/28.6|EC34/30 Red
ACS Maindrive Headset, EC34/28.6|EC34/30 Red

Forged steel cups, alloy tops, and cap with sealed mechanism bearings Available for 1" (25.4mm) or 1-1/8" (28.6mm) EC (traditional cup) applications … read more

your price $19.99

BuyBuyPART NUM 937391
ACS Maindrive Headset, EC34/28.6|EC34/30 Blue
ACS Maindrive Headset, EC34/28.6|EC34/30 Blue

Forged steel cups, alloy tops, and cap with sealed mechanism bearings Available for 1" (25.4mm) or 1-1/8" (28.6mm) EC (traditional cup) applications … read more

your price $16.99

BuyBuyPART NUM 175953
ACS Maindrive Headset, EC34/28.6|EC34/30 Black
ACS Maindrive Headset, EC34/28.6|EC34/30 Black

Forged steel cups, alloy tops, and cap with sealed mechanism bearings Available for 1" (25.4mm) or 1-1/8" (28.6mm) EC (traditional cup) applications … read more

32% offretail $24.95 your price $16.99

BuyBuyPART NUM 585164
ACS Main Drive Headset - Integrated, 1-1/8", Red
ACS Main Drive Headset - Integrated, 1-1/8", Red

MainDrive Integrated Headsets feature CNC machined alloy tops with 45/45 degree sealed mechanism retainer bearings. Item Specifications S.H.I.S. Stem … read more

20% offretail $24.95 your price $19.99

BuyBuyPART NUM 542543
ACS Southpaw Freewheel, Left Hand Drive 20t 3/32" Gun Metal
ACS Southpaw Freewheel, Left Hand Drive 20t 3/32" Gun Metal

ACS Southpaw Freewhee … read more

18% offretail $28.00 your price $22.99

BuyBuyPART NUM 560700
ACS Southpaw Freewheel, Left Hand Drive 16t 3/32" Gun Metal
ACS Southpaw Freewheel, Left Hand Drive 16t 3/32" Gun Metal

ACS Southpaw Freewhee … read more

your price $28.00

BuyBuyPART NUM 697944
ACS PAWS M30 Freewheel, 15T 3/32", Nickel
ACS PAWS M30 Freewheel, 15T 3/32", Nickel

ACS threaded freewheels that are focused on durability for metric thread applications. Three-pawl design provides engagement every 12 degrees … read more

17% offretail $22.99 your price $18.99

BuyBuyPART NUM 260032
ACS Maindrive, IS42/28.6|IS42/30 Blue
ACS Maindrive, IS42/28.6|IS42/30 Blue

CNC machined alloy tops with sealed mechanism 45/45 degree bearings Available as 1" (25.4mm), 1-1/8"(28.6mm) and 1 1/8" to 1" reducer … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

20% offretail $24.95 your price $19.99

BuyBuyPART NUM 230524
ACS Maindrive, IS38/25.4|IS38/26 Red
ACS Maindrive, IS38/25.4|IS38/26 Red

CNC machined alloy tops with sealed mechanism 45/45 degree bearings Available as 1" (25.4mm), 1-1/8"(28.6mm) and 1 1/8" to 1" reducer … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $16.99

BuyBuyPART NUM 732929
ACS Maindrive, ACS IS38/25.4|IS38/26 Blue
ACS Maindrive, ACS IS38/25.4|IS38/26 Blue

CNC machined alloy tops with sealed mechanism 45/45 degree bearings Available as 1" (25.4mm), 1-1/8"(28.6mm) and 1 1/8" to 1" reducer … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

your price $16.99

BuyBuyPART NUM 401605
ACS MainDrive Integrated 1-1/8" Headset Black
ACS MainDrive Integrated 1-1/8" Headset Black

ACS Maindrive Headsets, Complete Item Specifications Color: Black Material: Steel Crown Race: 30.0 Bearing Type: Sealed Defined Color: Black … read more

StarStarStarStarStar 5 of 5 ( 1 ) 5 of 5 stars ( 1 review )

9% offretail $22.00 your price $20.00

BuyBuyPART NUM 891358
ACS South Paw
ACS South Paw

Chromoly steel 16T. Works with 1/8" chains. Compatible with Left Hand Drive hubs only. (4 prong) … read more

Currently Sold Out

your price $16.99

InfoInfo
ACS Fat Freewheel (3/16")
ACS Fat Freewheel (3/16")

Chromoly steel freewheel, Designed to work with 3/16" HEAVY DUTY chain . (4 prong) Bronze … read more

Currently Sold Out

your price $19.99

InfoInfo
ACS Crossfire Freewheels - Silver
ACS Crossfire Freewheels - Silver

ACS Single-Speed Freewheels Durable cold forged CNC machined freeweheel 3 pawl ingagement for stronger hold with engagement every 12 degreees New … read more

Currently Sold Out

14% off your price $24.99

InfoInfo
ACS Southpaw Freewheel, 1/8" X 14T - Black/Gold
ACS Southpaw Freewheel, 1/8" X 14T - Black/Gold

Durable CrMo construction with 4-pawl internal engagement system Fits left-hand (LH) threaded hubs only (allows mounting drivetrain on left … read more

Currently Sold Out

your price $17.00

InfoInfo
ACS Crossfire Headset - EC34/28.6|EC34/30 Black
ACS Crossfire Headset - EC34/28.6|EC34/30 Black

Cold-forged and CNC-machined aluminum with precision sealed bearings Available for 1" (25.4mm) or 1-1/8" (28.6mm) EC (traditional cup) applications … read more

Currently Sold Out

your price $42.99

InfoInfo

These models are available for online purchasing and can be shipped directly to you.

We define color as the main color of the item. It may have accents or highlights in other colors.

S.H.I.S clamp diameter is the steerer tube diameter.

S.H.I.S Lower

S.H.I.S Upper

Crown Race

Chainring Teeth

Buy this product and your entire order ships for free.

Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.