Transmission & Drivetrain

Stock 24 tooth replacement OEM compensating sprocket for shovelhead and big twin evolution models. Hardened steel for improved wear and longevity. ...

BDL patented 3- piece design compensating sprocket kit. Fits 1980-2006 Big Twins, with some model exclusions, check fitment below. Three-piece pat...

BDL patented 3- piece design compensating sprocket kit.  Fits 1980-2006 Big Twins, with some model exclusions, check fitment below. Three-p...

Complete compensating sprocket for 1996-2006 Big Twin Harley applications.  Included sprocket shaft extension, sliding camp, sprocket nut and cove...

Complete compensating sprocket for 1991-1993 Big Twin Harley applications.  Included sprocket shaft extension, sliding camp, sprocket nut and cove...

Complete compensating sprocket for 1984-1990 Big Twin Harley applications.  Included sprocket shaft extension, sliding camp, sprocket nut and cove...

Knucklehead and Panhead clutch release lever. OEM replacement. Chrome plated. For use with tin primaries. Fitments YEAR MAKE MODEL 1958-1964 H...

Heavy Duty OEM replacement pivot shaft with clutch finger for 1936-1984 Harley Big twin models. Fits Knucklehead, Panhead and Shovelhead 4 speed tr...

OEM replacement Clutch Finger Pivot Shaft for 4-speed big twin Harley Davidson models. Included retaining clip. Fitments YEAR ...

High quality OEM replacement clutch release fingre for 4-speed big twin harley davidsons. High-quality OEM replacement component For use ...

530 series o-ring roller chain from Drag Specialties with 110 links is chrome plated for a little extra bling!  Improved wear resistance over non ...

530 series o-ring roller chain from Drag Specialties with 112 links is chrome plated for a little extra bling!  Improved wear resistance over non O...

High quality D.I.D chains are a proven manufacturer in the motorcycle chain industry.  When you're higher horsepower motorcycle demands a chain th...

High quality D.I.D chains are a proven manufacturer in the motorcycle chain industry.  When you're higher horsepower motorcycle demands a chain th...

High quality D.I.D chains are a proven manufacturer in the motorcycle chain industry.  When you're higher horsepower motorcycle demands a chain th...

Drag Specialties Mainshaft Sprocket/Belt Pulley Nut 1936-1992 Replacement nut attaches mainshaft sprocket or belt pulley to main drive gear Fitme...

Replacement die cast aluminum sprocket cover for sportster models from 1982-1990 High-quality cast aluminum construction Mount with exist...

Lightly polished 3/16 Stainless Steel plate used to fabricate a hand shift lever for harley ratchet top transmissions.

My friend Chris Hamilton hit me up one day asking where to find long tapering material to build a shifter.... unfortunately i didn't have a great s...

4-Speed Adjustable Transmission Mounting Plate. Mounting plate is CNC-machined for accuracy. The built-in dual adjusters operate from the end of t...

Derby Cover Gasket Seal - 1994 -UP Sportster - "B & C" Covers Latest additions to our line of high-quality genuine James gaskets, seals and O-...

Making old beat up inner primary covers fit can be a total bummer.  Replace yours with this stamped steel version. Direct replacement for Harley K...

This Mild Steel Shifter Plate makes quick work of making your own custom hand shifter for your Harley Rotary Top, Cow Pie, Turtle Top Transmission....

This Mild Steel Shifter Plate makes quick work of making your own custom hand shifter for your Jockey Lid Transmission. Pair this with our Hamilton...

Shifter for Harley ratchet top transmissions. Brilliant chrome finish 10in total length 

Chrome Shift knob fits perfect on out Hamilton shifter. 3/8-24 NF threads.

Triumph/BSA Clutch Steel Plate Set Set of 6 Fit 500,650,750 Triumph/BSA Pre-Unit & Unit 

Triumph Clutch Friction Kit Fit Triumph & BSA twins Same cork construction as OEM Includes 6 friction disks .162" thick    

Triumph Clutch Hub Roller Kit Set of 20 1/4" X 1/4"

Triumph Primary Gasket - 650/750

Triumph Clutch Springs - 650 Unit Sold as a set of 3

Triumph Shifter Rubber  Open End

Triumph Kick Start Rubber - 650/750

Ride with confidence and ensure smooth gear transitions with the Triumph Shift Rubber. Designed specifically for the discerning rider and vintage T...

Making old beat up inner primary covers fit can be a total bummer. Replace yours with this stamped steel version. Direct replacement for Harley Knu...

Drag Specialties high performance pressure plate is a great upgrade over the old stamped steel version. Machined from aluminum, finished smooth and...

Includes 10 heavy-duty springs Made in the U.S.A. YEAR MAKE MODEL 1958 - 1964 Harley-Davidson Duo Glide - FL 1958 - 1964 Harley-Davids...

Complete 5 stud clutch hub for Harley Big Twin from 1936-1984.   Includes hub, liner, rollers/retainer, adjusting nuts, and plate Fits Knucklehead...

4 Speed Kicker Spring Stud- Chrome Chrome-plated reproduction of original kicker spring stud Round, smooth head Made in the U.S.A. OEM replacement...

Harley Big Twin primary chain 428-2x82. Replace your stretched out chain with a new one. 36-86 Big Twin 4 Speed, 84-06 FXST/FLST, 91-05 Dyna Impro...

Harley Big Twin primary chain 35-3 x 96. Replace your stretched out chain with a new one. 04-22 Sportster 1200 Improved fatigue resistance Pre-loa...

Harley Big Twin primary chain 35-3 x 94. Replace your stretched out chain with a new one. 57-03 Sportster, 04-22 Sportster 883 Improved fatigue re...

Clutch Hub Nuts- Big Twin Fits Big Twin 10 spring clutch from 1941 to early 1984 Sold in packs of 5 OEM # 37581-47

4 Speed Adjustable Transmission Mounting Plate- Chrome Adjustable transmission mounting plate with a chrome finish features built in adjuster scre...

Chrome transmission mounting plate.*NOTE: Plate drilled for mounting in 1958-1984 swingarm and 1941-1957 rigid frames. Suggested when installing el...

Drag Specialties 530 Series O-Ring Chain - 120 Links - Chrome Plated  530 series O-ring roller chain from Drag Specialties with 120 links is chrome...

Cast Aluminum Kicker Pedal- Virgin Mary The Virgin mary kicker pedal features a sturdy heavy cast aluminum construction. It uses a modified standar...

Cast Aluminum Kicker Pedal- Sure Grip It's the "Grippy-est!" Looks cool even when your bike don't start. Sturdy heavy-duty construction. Hand-made ...