GMA
GMA is a respected manufacturer of high performance motorcycle brake systems designed for custom and Harley-Davidson applications. The brand is known for precision-machined brake calipers and braking components engineered to deliver consistent stopping power. GMA products are widely used on Touring, Softail, Springer and rigid frame builds where fitment accuracy and braking reliability are critical. Riders and builders trust GMA for dependable performance with a clean custom finish.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
V-Twin - 22-0362 - GMA Rear 2 Piston Caliper and 11-1/2 inch Disc Kit
GMA
MSRP: $391.80$376.90V-Twin - 22-0362 - GMA Rear 2 Piston Caliper and 11-1/2 inch Disc KitDescriptionKit include GMA dual piston caliper with bracket and a 11.5" polished stainless disc with mount bolts. Use with 5/8"...MSRP: $391.80$376.90 -
V-Twin - 22-0358 - GMA Rear 2 Piston Caliper and 11-1/2 inch Disc Kit
GMA
MSRP: $502.39$477.27V-Twin - 22-0358 - GMA Rear 2 Piston Caliper and 11-1/2 inch Disc KitDescriptionKit include 2-piston caliper with bracket and a 11.5" polished stainless disc with mount bolts. Fits:FLST 1987-1989FXST...MSRP: $502.39$477.27 -
Out of stock
V-Twin - 22-0354 - GMA Rear 2 Piston Caliper and 11-1/2 inch Disc Kit
GMA
MSRP: $424.76$403.52V-Twin - 22-0354 - GMA Rear 2 Piston Caliper and 11-1/2 inch Disc KitDescriptionGMA rear brake caliper kit include GMA caliper with bracket and a 11.5" stainless steel disc with mount bolts. Use with...MSRP: $424.76$403.52 -
Gma Engineering By Bdl - RBK-5 - Clutch Master Cylinder Rebuild Kit - 9/16"
GMA
$30.77Gma Engineering By Bdl - RBK-5 - Clutch Master Cylinder Rebuild Kit - 9/16"FeaturesMade in the U.S.A.SpecsBore Size Imperial9/16''Mounting PositionFrontProduct NameRebuild KitUnitsKitTypeMaster...$30.77 -
Gma Engineering By Bdl - RBK-4 - Master Cylinder Rebuild Kit - 5/8"
GMA
$30.77Gma Engineering By Bdl - RBK-4 - Master Cylinder Rebuild Kit - 5/8"FeaturesMade in the U.S.A.SpecsBore Size Imperial5/8''TypeMaster CylinderRiding...$30.77 -
Gma Engineering By Bdl - GMA400F/MCMRBK - Caliper Rebuild Kit - "F/M" Caliper
GMA
$129.08Gma Engineering By Bdl - GMA400F/MCMRBK - Caliper Rebuild Kit - "F/M" CaliperFeaturesEach kit contains everything needed to rebuild one GMA brake caliperSpecsUnitsKitProduct NameRebuild KitRiding...$129.08 -
Gma Engineering By Bdl - GMA-AC-MRBK - Caliper Rebuild Kit - "A" Caliper
GMA
$101.85Gma Engineering By Bdl - GMA-AC-MRBK - Caliper Rebuild Kit - "A" CaliperFeaturesEach kit contains everything needed to rebuild one GMA brake caliperSpecsStyleFor GMA ''A'' CalipersProduct NameRebuild...$101.85 -
Gma Engineering By Bdl - GMA-BC-MRBK - Caliper Rebuild Kit - "B" Caliper
GMA
$101.85Gma Engineering By Bdl - GMA-BC-MRBK - Caliper Rebuild Kit - "B" CaliperFeaturesEach kit contains everything needed to rebuild one GMA brake caliperSpecsProduct NameRebuild KitUnitsKitStyleFor GMA...$101.85 -
Gma Engineering By Bdl - GMA RB1 - Rebuild Kit - " A/B" Calipers
GMA
$17.85Gma Engineering By Bdl - GMA RB1 - Rebuild Kit - " A/B" CalipersFeaturesComponents and kits made specifically for GMA calipersSpecsMounting PositionLeftColor/FinishBlackRiding StyleStreetCaliper...$17.85 -
Gma Engineering By Bdl - GMA RB4 - Rebuild Kit - "F/M" Calipers
GMA
$30.77Gma Engineering By Bdl - GMA RB4 - Rebuild Kit - "F/M" CalipersFeaturesComponents and kits made specifically for GMA calipersSpecsTypeBrake CaliperCaliper Pistons4 PistonRiding StyleStreetMounting...$30.77 -
Gma Engineering By Bdl - GMA PA4 - Replacement Pistons - "F/M" Caliper
GMA
$78.15Gma Engineering By Bdl - GMA PA4 - Replacement Pistons - "F/M" CaliperFeaturesComponents and kits made specifically for GMA calipersSpecsColor/FinishBlackRiding StyleStreetTypeBrake CaliperCaliper...$78.15 -
Out of stock
Gma Engineering By Bdl - GMA PA2 - Replacement Pistons - "B" Caliper
GMA
$35.95Gma Engineering By Bdl - GMA PA2 - Replacement Pistons - "B" CaliperFeaturesComponents and kits made specifically for GMA calipersSpecsColor/FinishBlackProduct NamePistonMounting...$35.95 -
Gma Engineering By Bdl - GMA PA1 - Replacement Pistons - "A" Caliper
GMA
$46.15Gma Engineering By Bdl - GMA PA1 - Replacement Pistons - "A" CaliperFeaturesComponents and kits made specifically for GMA calipersSpecsMounting PositionFrontUnits2 PackProduct NamePistonCaliper...$46.15 -
Out of stock
Gma Engineering By Bdl - GMA-HC-5-C - Clutch Master Cylinder Assembly - 9/16" - Switch - Chrome
GMA
$404.95Gma Engineering By Bdl - GMA-HC-5-C - Clutch Master Cylinder Assembly - 9/16" - Switch - ChromeFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedAssemblies...$404.95 -
Gma Engineering By Bdl - GMA-HC-4-C - Clutch Master Cylinder Assembly - 9/16" - Chrome
GMA
$395.38Gma Engineering By Bdl - GMA-HC-4-C - Clutch Master Cylinder Assembly - 9/16" - ChromeFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedAssemblies fit most...$395.38 -
Gma Engineering By Bdl - GMA-HC-4-P - Clutch Master Cylinder Assembly - 9/16" - Polished
GMA
$336.15Gma Engineering By Bdl - GMA-HC-4-P - Clutch Master Cylinder Assembly - 9/16" - PolishedFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedAssemblies fit...$336.15 -
Out of stock
Gma Engineering By Bdl - GMA-MC-5-B - Clutch Control Lever - Switch - Black
GMA
$326.95Gma Engineering By Bdl - GMA-MC-5-B - Clutch Control Lever - Switch - BlackFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedSwitch kit includes three...$326.95 -
Gma Engineering By Bdl - GMA-MC-4-B - Clutch Control Lever - Black
GMA
$267.54Gma Engineering By Bdl - GMA-MC-4-B - Clutch Control Lever - BlackFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedSwitch kit includes three momentary...$267.54 -
Gma Engineering By Bdl - GMA-HC-5-B - Clutch Master Cylinder Assembly - 9/16" - Switch - Black
GMA
$504.15Gma Engineering By Bdl - GMA-HC-5-B - Clutch Master Cylinder Assembly - 9/16" - Switch - BlackFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedAssemblies...$504.15 -
Gma Engineering By Bdl - GMA-HC-4-B - Clutch Master Cylinder Assembly - 9/16" - Black
GMA
$363.38Gma Engineering By Bdl - GMA-HC-4-B - Clutch Master Cylinder Assembly - 9/16" - BlackFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedAssemblies fit most...$363.38 -
Out of stock
Gma Engineering By Bdl - GMA-MC-5-C - Clutch Control Lever - Switch - Chrome
GMA
$331.95Gma Engineering By Bdl - GMA-MC-5-C - Clutch Control Lever - Switch - ChromeFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedSwitch kit includes three...$331.95 -
Gma Engineering By Bdl - GMA-MC-4-C - Clutch Control Lever - Chrome
GMA
$298.31Gma Engineering By Bdl - GMA-MC-4-C - Clutch Control Lever - ChromeFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedSwitch kit includes three momentary...$298.31 -
Gma Engineering By Bdl - GMA-MC-5-P - Clutch Control Lever - Switch - Polished
GMA
$395.38Gma Engineering By Bdl - GMA-MC-5-P - Clutch Control Lever - Switch - PolishedFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedSwitch kit includes three...$395.38 -
Gma Engineering By Bdl - GMA-MC-4-P - Clutch Control Lever - Polished
GMA
$240.31Gma Engineering By Bdl - GMA-MC-4-P - Clutch Control Lever - PolishedFeaturesClean design makes these assemblies a great choice for custom applicationsCNC-machinedSwitch kit includes three momentary...$240.31 -
Gma Engineering By Bdl - RBK-2 - Rebuild Kit - 5/8"
GMA
$30.77Gma Engineering By Bdl - RBK-2 - Rebuild Kit - 5/8" Features CNC-machined from billet aluminum Features make these controls a must-have upgrade for custom motorcycles Designed for GMA forward...$30.77 -
Gma Engineering By Bdl - GMA-103SASB - Rear Caliper - 85-99 FXR - Smooth Black
GMA
$587.08Gma Engineering By Bdl - GMA-103SASB - Rear Caliper - 85-99 FXR - Smooth BlackFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$587.08 -
Out of stock
Gma Engineering By Bdl - GMA-103FLTSB - Rear Caliper - 86-99 FLT - Smooth Black
GMA
$449.95Gma Engineering By Bdl - GMA-103FLTSB - Rear Caliper - 86-99 FLT - Smooth BlackFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$449.95 -
Gma Engineering By Bdl - GMA-103FLT - Rear Caliper - 86-99 FLT - Clear Anodized
GMA
$587.08Gma Engineering By Bdl - GMA-103FLT - Rear Caliper - 86-99 FLT - Clear AnodizedFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$587.08 -
Gma Engineering By Bdl - GMA-FC-100-C - Forward Controls - Chrome - '86-'99 ST
GMA
$1,113.69Gma Engineering By Bdl - GMA-FC-100-C - Forward Controls - Chrome - '86-'99 STFeaturesCNC-machined from billet aluminumUnique design and features make these controls a must-have upgrade for your...$1,113.69 -
Out of stock
Gma Engineering By Bdl - GMA-FB-200B - Front Floorboard - Black
GMA
$578.95Gma Engineering By Bdl - GMA-FB-200B - Front Floorboard - BlackFeaturesUpgrade your bike’s look with a kit that includes floorboards, passenger boards and brake pedal padDriver floorboards adjust...$578.95 -
Gma Engineering By Bdl - GMA-FC-100-B - Forward Controls - Black - '86-'99 ST
GMA
$964.62Gma Engineering By Bdl - GMA-FC-100-B - Forward Controls - Black - '86-'99 STFeaturesCNC-machined from billet aluminumUnique design and features make these controls a must-have upgrade for your stock...$964.62 -
Gma Engineering By Bdl - GMA-FC-100-P - Forward Controls - Polished - '86-'99 ST
GMA
$819.08Gma Engineering By Bdl - GMA-FC-100-P - Forward Controls - Polished - '86-'99 STFeaturesCNC-machined from billet aluminumUnique design and features make these controls a must-have upgrade for your...$819.08 -
Gma Engineering By Bdl - GMA-FB-200C - Front Floorboards - Chrome
GMA
$578.95Gma Engineering By Bdl - GMA-FB-200C - Front Floorboards - ChromeFeaturesUpgrade your bike’s look with a kit that includes floorboards, passenger boards and brake pedal padDriver floorboards adjust...$578.95 -
Gma Engineering By Bdl - GMA-FB-100C - Front Floorboards - Chrome
GMA
$578.95Gma Engineering By Bdl - GMA-FB-100C - Front Floorboards - ChromeFeaturesUpgrade your bike’s look with a kit that includes floorboards, passenger boards and brake pedal padDriver floorboards adjust...$578.95 -
Gma Engineering By Bdl - GMA-FB-100B - Front Floorboard - Black
GMA
$578.95Gma Engineering By Bdl - GMA-FB-100B - Front Floorboard - BlackFeaturesUpgrade your bike’s look with a kit that includes floorboards, passenger boards and brake pedal padDriver floorboards adjust...$578.95 -
Out of stock
Gma Engineering By Bdl - GMA-402STSB - Rear Caliper - BLK 87-99SFT - Smooth Black
GMA
$509.95Gma Engineering By Bdl - GMA-402STSB - Rear Caliper - BLK 87-99SFT - Smooth BlackFeatures6061 T-6S aluminum constructionFor use with 11.5" rotorsMade in the U.S.A.SpecsColor/FinishBlackRiding...$509.95 -
Out of stock
Gma Engineering By Bdl - GMA-202STSB - Rear Caliper - 87-99 ST - Smooth Black
GMA
$449.95Gma Engineering By Bdl - GMA-202STSB - Rear Caliper - 87-99 ST - Smooth BlackFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$449.95 -
Out of stock
Gma Engineering By Bdl - GMA-202STB - Rear Caliper - 87-99 ST - Classic Black
GMA
$449.95Gma Engineering By Bdl - GMA-202STB - Rear Caliper - 87-99 ST - Classic BlackFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$449.95 -
Out of stock
Gma Engineering By Bdl - GMA-202STC - Rear Caliper - 87-99 ST - Classic Chrome
GMA
$535.95Gma Engineering By Bdl - GMA-202STC - Rear Caliper - 87-99 ST - Classic ChromeFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$535.95 -
Out of stock
Gma Engineering By Bdl - GMA-201STSB - Rear Caliper - 84-86 FX - Smooth Black
GMA
$449.95Gma Engineering By Bdl - GMA-201STSB - Rear Caliper - 84-86 FX - Smooth BlackFeaturesRaw metal on black contrast calipers is anodized for a long-lasting high-quality finishTwo piston designs for...$449.95
GMA Motorcycle Brake Systems – Custom Calipers and High Performance Stopping Power
GMA has earned a strong reputation in the motorcycle aftermarket by producing precision-engineered brake systems that balance performance and custom styling. Each component is manufactured with tight tolerances to provide predictable braking response, smooth modulation and long-term durability. GMA focuses on delivering braking solutions that enhance rider control without sacrificing reliability or aesthetics.
The GMA product lineup centers on custom motorcycle brake calipers, brake discs and replacement brake pads designed for a wide range of Harley-Davidson models. These braking components are commonly used on Big Twin, Touring, Softail and Springer setups where consistent stopping power and proper fitment are essential. Whether upgrading an older braking system or completing a full custom build, GMA brake systems deliver confident braking performance across street and performance-oriented applications.
Builders and riders choose GMA for its proven engineering, consistent quality and compatibility across classic and modern Harley platforms. With durable finishes and performance-driven designs, GMA brake systems inspire confidence in demanding riding conditions. The brand remains a trusted choice for riders seeking custom motorcycle brakes that deliver control, safety and long-lasting performance.