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Disc Brake Adaptors
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Shimano F203 Post Mount Disc Brake Adaptor
—$15.80
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork.For use with 180mm post mount and 203mm disc rotor Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size 180 Post | 203 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 192790506111
Mpn: ESMMAF203PPMAby Shimano
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Shimano F203P/P Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 74mm Fork
—$16.75
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 21g Rotor Size 203mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Front 203 Frame/Fork Mount 74mm Post Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108110
Mpn: ISMMAF203PPAby Shimano
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Shimano SM-MA90-F203P/PM Disc Brake Adaptor - 180mm Post Mount Fork/Frame to 203mm Disc Brake Rotor
—$21.99
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. Allows 180mm Post Mount forks and frames to use 203 mm disc brake rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size 180 Post | 203 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228887435
Mpn: ISMMA90F203PPMby Shimano
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Shimano R180P/S Disc Brake Adaptor for 180mm Rotor, 74mm Caliper, 51mm Frame
—$17.21
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 20g Rotor Size 180mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Rear 180 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108165
Mpn: ISMMAR180PSAby Shimano
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Shimano SM-MA-F220P/PM Disc Brake Adaptor - 180mm Post Mount Fork/Frame to 220mm Disc Brake Rotor
—$19.99
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. Allows 180mm Post Mount forks and frames to use 220 mm disc brake rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size 180 Post | 220 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 192790897806
Mpn: ESMMAF220PPMby Shimano
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Shimano R160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Frame
—$17.49
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 20g Rotor Size 160mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Rear 160 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108158
Mpn: ISMMAR160PSAby Shimano
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Shimano XTR F180P/P Disc Brake Adaptor with mounting hardware
—$22.49
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. For 74mm caliper on 74mm fork, using 180mm rotor Includes surface-treated washers (Shimano part no.Y8LF12000) to prevent corrosion when used with XTR BR-M987 magnesium calipers Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size 160 Post | 180 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228595576
Mpn: ISMMA90F180PPCby Shimano
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Shimano R203P/S Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 51mm Frame
—$16.75
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 21g Rotor Size 203mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Rear 203 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108813
Mpn: ISMMAR203PSAby Shimano
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Shimano F180P/S Disc Brake Adaptor for 180mm Rotor, 74mm Caliper, 51mm Fork
—$16.75
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 20g Rotor Size 180mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Front 180 Frame/Fork Mount 51mm IS Front Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108141
Mpn: ISMMAF180PSAby Shimano
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Shimano XTR R180P/S Disc Brake Adaptor for 180mm Rotor, 74mm Caliper, 51mm Frame
—$21.70
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Rotor Size 180mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Rear 180 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228430440
Mpn: ISMMA90R180PSby Shimano
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Shimano SM-MA-F180 Post Mount Disc Brake Adaptor - 180P/P2
—$15.98
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. Allows 140mm Post Mount forks and frames to use 160mm disc brake rotor / Allows 160mm Post Mount forks and frames to use 180mm disc brake rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size 140 Post | 160 Rotor Mount | Rotor Size 160 Post | 180 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 192790506128
Mpn: ESMMAF180PP2Aby Shimano
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Shimano F203P/S Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 51mm Fork
—$16.95
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 21g Rotor Size 203mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Front 203 Frame/Fork Mount 51mm IS Front Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108127
Mpn: ISMMAF203PSAby Shimano
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Shimano SM-MA-F220P/PL Disc Brake Adaptor - 203mm Post Mount Fork/Frame to 220mm Disc Brake Rotor
—$18.25
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. Allows 203mm Post Mount forks and frames to use 220 mm disc brake rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size 203 Post | 220 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 192790897783
Mpn: ESMMAF220PPLby Shimano
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Shimano F160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Fork
—$19.99
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 20g Rotor Size 160mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Front 160 Frame/Fork Mount 51mm IS Front Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228108103
Mpn: ISMMAF160PSAby Shimano
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Shimano F180S/P Disc Brake Adaptor for 180mm Rotor, 51mm Caliper, 74mm Fork
—$19
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Weight 20g Rotor Size 180mm Caliper Type 51mm I.S Brake Caliper Mount 51mm Front For Rotor Diameter Front 180 Frame/Fork Mount 74mm Post Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228283442
Mpn: ISMMAF180SPAby Shimano
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Shimano SM-MA-F220P/PL2 Disc Brake Adaptor - 200mm Post Mount Fork/Frame to 220mm Disc Brake Rotor
—$18.25
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. Allows 200mm Post Mount forks and frames to use 220 mm disc brake rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 192790897813
Mpn: ESMMAF220PPL2by Shimano
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Shimano SM-MA-R160D/D Disc Brake Adaptor for 160mm Rotor, Flat-Mount Caliper, Flat-Mount Frame
—$21
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. +20 flat mount adapter allows use of 160mm disc brake rotor on frames designed for 140mm disc brake rotor Crafted with durable and lightweight aluminum Includes mounting hardware Item Specifications Brake Caliper Type Flat Mount Mount | Rotor Size Rear Flat | 160 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 192790168562
Mpn: ISMMAR160DDBby Shimano
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Shimano XTR R160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Frame
—$22.99
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Rotor Size 160mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Rear 160 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228430457
Mpn: ISMMA90R160PSby Shimano
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Shimano Front 140/160mm Rotor Flat-Mount Road Disc Caliper Mount Plate
—$29
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. For Flat mount road caliper on flat mount fork, using 140/160mm rotor Does not include mounting hardware Item Specifications Brake Caliper Type Flat Mount Mount | Rotor Size Front Flat | 160 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228353657
Mpn: Y8N230000by Shimano
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Shimano F160P/D Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, Flat- Mount Fork
—$28
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. For 74mm caliper on Flat Mount fork, using 160mm rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size Front Flat | 160 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228350625
Mpn: ISMMAF160PDAby Shimano
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Shimano XTR R140P/S Disc Brake Adaptor for 140mm Rotor, 74mm Caliper, 51mm Frame
—$21.60
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Rotor Size 140mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Rear 140 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228430495
Mpn: ISMMA90R140PSby Shimano
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Shimano XTR F160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Fork
—$21.70
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Rotor Size 160mm Caliper Type 74mm Post Mount Brake Caliper Mount 74mm Post For Rotor Diameter Front 160 Frame/Fork Mount 51mm IS Front Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228430488
Mpn: ISMMA90F160PSby Shimano
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Shimano R160P/D Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, Flat- Mount Frame
—$37
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. For 74mm caliper on Flat Mount frame, using 160mm rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size Rear Flat | 160 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228874978
Mpn: ISMMAR160PDHby Shimano
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Shimano R180S/S Disc Brake Adaptor for 180mm Rotor, 51mm Caliper, 51mm Frame
—$19
Shimano disc brake adaptors.Click in individual parts to see detailed descriptions of application Item Specifications Rotor Size 180mm Caliper Type 51mm I.S Brake Caliper Mount 51mm Rear For Rotor Diameter Rear 180 Frame/Fork Mount 51mm IS Rear Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228283473
Mpn: ISMMAR180SSAby Shimano
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Shimano F140P/D Disc Brake Adaptor for 140mm Rotor, 74mm Caliper, Flat- Mount Fork
—$28
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. For 74mm caliper on flat mount road fork, using 140mm rotor Includes mounting hardware Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size Front Flat | 140 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228350618
Mpn: ISMMAF140PDAby Shimano
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Shimano R140P/D Disc Brake Adaptor for 140mm Rotor, 74mm Caliper, Flat- Mount Frame
—$38
Shimano Disc Brake Adaptors allow the use of different sized rotors to your frame or fork. For 74mm caliper on Flat Mount frame, using 140mm rotor Includes mounting hardware Will not work with Avid BB5 or BB7 Calipers; use 160 mm rotors and adaptor Item Specifications Brake Caliper Type Post Mount Mount | Rotor Size Rear Flat | 140 Rotor Shimano Disc Brake Adapter Disc Brake Adaptor UPC: 689228874961
Mpn: ISMMAR140PDHby Shimano
Shimano F203 Post Mount Disc Brake Adaptor
Shimano F203P/P Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 74mm Fork
Shimano SM-MA90-F203P/PM Disc Brake Adaptor - 180mm Post Mount Fork/Frame to 203mm Disc Brake Rotor
Shimano R180P/S Disc Brake Adaptor for 180mm Rotor, 74mm Caliper, 51mm Frame
Shimano SM-MA-F220P/PM Disc Brake Adaptor - 180mm Post Mount Fork/Frame to 220mm Disc Brake Rotor
Shimano R160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Frame
Shimano XTR F180P/P Disc Brake Adaptor with mounting hardware
Shimano R203P/S Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 51mm Frame
Shimano F180P/S Disc Brake Adaptor for 180mm Rotor, 74mm Caliper, 51mm Fork
Shimano XTR R180P/S Disc Brake Adaptor for 180mm Rotor, 74mm Caliper, 51mm Frame
Shimano SM-MA-F180 Post Mount Disc Brake Adaptor - 180P/P2
Shimano F203P/S Disc Brake Adaptor for 203mm Rotor, 74mm Caliper, 51mm Fork
Shimano SM-MA-F220P/PL Disc Brake Adaptor - 203mm Post Mount Fork/Frame to 220mm Disc Brake Rotor
Shimano F160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Fork
Shimano F180S/P Disc Brake Adaptor for 180mm Rotor, 51mm Caliper, 74mm Fork
Shimano SM-MA-F220P/PL2 Disc Brake Adaptor - 200mm Post Mount Fork/Frame to 220mm Disc Brake Rotor
Shimano SM-MA-R160D/D Disc Brake Adaptor for 160mm Rotor, Flat-Mount Caliper, Flat-Mount Frame
Shimano XTR R160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Frame
Shimano Front 140/160mm Rotor Flat-Mount Road Disc Caliper Mount Plate
Shimano F160P/D Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, Flat- Mount Fork
Shimano XTR R140P/S Disc Brake Adaptor for 140mm Rotor, 74mm Caliper, 51mm Frame
Shimano XTR F160P/S Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, 51mm Fork
Shimano R160P/D Disc Brake Adaptor for 160mm Rotor, 74mm Caliper, Flat- Mount Frame
Shimano R180S/S Disc Brake Adaptor for 180mm Rotor, 51mm Caliper, 51mm Frame
Shimano F140P/D Disc Brake Adaptor for 140mm Rotor, 74mm Caliper, Flat- Mount Fork
Shimano R140P/D Disc Brake Adaptor for 140mm Rotor, 74mm Caliper, Flat- Mount Frame
Some mountain bikes need disc brake adaptors in order to mount your disc brake caliper to your frame depending on what size rotor you are using. Almost all bikes now use what is called post to post mount frames that mount directly to a disc brake caliper. Some older bikes use an IS to post mount adaptor and you need that in order to use any caliper on your bike. Post to post is much more common now and sometimes you don't need an adaptor if you are running the minimum size rotor your frame or fork uses. If you want to ride a larger rotor, as many of us do, you will need a disc brake adaptor in order to make those work together. We would recommend using the same brand as your disc brake for your MTB disc brake adaptor as they work together the best and some adaptors are designed around the shape of the caliper. SRAM, Shimano, Hope, TRP, Hayes, Magura and Paul Components are the most common adaptors we use and we try to match those with the caliper brand. Mountain bike disc brake adaptors get very confusing and if you have any questions at all please contact our customer service team.
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