DIYMINIBIKES

4-1/2″ Drum Brakes & Brake Drums
Two Backing Plate Styles
Three Actuator Arm Choices*
Bonded Brake Shoes
5/8″, 3/4″ or 1″ Axle Bore
*Actuator arm available with right offset, left offset or straight. Unless otherwise specified, right-hand offset actuator arm will be supplied as depicted.
Round Backing Plate Brake Assembly
Description Part No.
Steel Backing plate, 5/8″ Bore 2270S
Aluminum Backing Plate, 5/8″ Bore 2270A
Steel Backing plate, 3/4″ Bore 2272S
Aluminum Backing Plate, 3/4″ Bore 2272A
Steel Backing plate, 1″ Bore 2271S
Aluminum Backing Plate, 1″ Bore 2271A
Anchor Backing Plate Assembly
Description Part No.
Steel Anchor Backing Plate, 5/8″ Bore 2208
Steel Anchor Backing Plate, 3/4″ Bore 2210
Steel Anchor Backing Plate, 1″ Bore 2269
Components
Description Part No.
Lined Brake Shoes, Pair 2260
Actuator Arm 2263
Spring (2 Required) 2264
Cam 8235
Lockwasher-Split 8302
Flat Washer 8304
Locknut for Cam, 5/16-18 8510
4-1/2″ Brake Drums
Machined ID for Drum Brake Use
2-1/8″ Center Bore
Flanged drum has 6 holes on a 5-1/4″ bolt circle. Machined ID for internal expanding drum brakes. All drums have 3 sets of mounting holes: 3 & 4 hole on a 3.75″ diameter bolt circle and a 4 hole on a 3.228″ bolt circle to match the Mini-Hub.
Description Part No.
Drum, 4-1/2″, Machined ID, No Flange 2211-ID
Drum, 4-1/2″, Machined ID, With Flange 2213-ID
Single-Piece, 4-1/2″ Sprocket Drums
Machined ID for Drum Brake Use
2-1/8″ Center Bore
Stamped for added precision, our one-piece #35 chain, 60 or 72 tooth Steel Sprocket and 4-1/2″ Drum combinations provide strong, reliable units at economical prices. (Replaces riveted assemblies.) Machined ID for internal expanding drum brake use.
Description Part No.
Drum, Machined ID & 60 tooth Sprocket, Plated 2217-ID
Drum, Machined ID & 72 tooth Sprocket, Plated 2218-ID
4-1/2″ Brake Drums with Riveted Hubs
Mini-Hubs (3/4″, 1″ or 1-1/4″ bore), riveted to any of our 4-1/2″ drums for use on a 3/4″, 1″ or 1-1/4″ Live Axle. Brake Drums has machined ID for Drum Brake use. Ideal for small, low horsepower vehicles (Set Screws and Key included.)
Description Part No.
60 Tooth Sprocket – #35 Chain, Brake Drum, Machined ID, & 3/4″ Hub Kit 2467-ID
60 Tooth Sprocket – #35 Chain, Brake Drum, Machined ID, & 1″ Hub Kit 2267-ID
60 Tooth Sprocket – #35 Chain, Brake Drum, Machined ID, & 1-1/4″ Hub Kit 2247-ID
72 Tooth Sprocket – #35 Chain, Brake Drum, Machined ID, & 3/4″ Hub Kit 2468-ID
72 Tooth Sprocket – #35 Chain, Brake Drum, Machined ID, & 1″ Hub Kit 2268-ID
72 Tooth Sprocket – #35 Chain, Brake Drum, Machined ID, & 1-1/4″ Hub Kit 2248-ID
Flanged Brake Drum, Machined ID, & 3/4″ Hub Kit 2466-ID
Flanged Brake Drum, Machined ID, & 1″ Hub Kit 2266-ID
Flanged Brake Drum, Machined ID, & 1-1/4″ Hub Kit 2246-ID
Brake Drum, Machined ID, No Flange & 3/4″ Hub Kit 2465-ID
Brake Drum, Machined ID, No Flange & 1″ Hub Kit 2265-ID
Brake Drum, Machined ID, No Flange & 1-1/4″ Hub Kit 2245-ID
Brake Drum Platform for 5″ Azusalite Wheels
Cast Aluminum, 3.75″ Bolt Circle,
2.10″ Ring Diameter
1″ Platform Height
With or Without Nuts & Bolts
Description Part No.
Brake Drum Platform 2259
Brake Drum Platform, w/Nuts & Bolts 2259-A
Astro Wheel Brake Drum Adapter Kit
For use with our 6″ Aluminum “Astro” Wheel
Description Part No.
Astro Wheel Brake Drum Adapter Kit 1816