BSA Transmission Parts
If the time has come to rebuild your gear box or try to fix your "mis-shifting" issues, Classic British Spares has the parts you need for your transmission overhaul or "spruce up".
In the pages below you will find everything related to your "gear box" AKA "transmission" including clutch chain wheel baskets, pinion gears, oil seal kits, shift forks, tab washers, final drive sprockets, return springs, mainshafts and more.
Most parts will fit "traditional" BSA models (singles, twins and triples) including.... BSA A65, A50, A75, A7, A10, B25, C15, B31, B32, etc up to 1972.
- We stock trusted brands from SKF, BSA (NOS), Koyo, Torrington, Cov-Seal, FAG and more..
- All orders placed in the United States (lower 48) are eligible for free shipping - always
- International shipping welcome on all parts orders
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BSA / Triumph Clutch Spider Cush Rubbers (8) - 57-2723 - B40 / B25 / B44 / TR25W $ 24.95 USD -
BSA / Triumph Mainshaft Ratchet Nut Tab Washer (1) 57-2685 $ 4.95 USD -
BSA / Triumph Unit Singles High Gear Bearing 1959-73 $ 36.95 USD -
BSA A50 / A65 Front Drive Sprockets - 1962-72 - Choose Size from $ 49.95 USD -
BSA A50 / A65 Gear Box / Timing Cover Dipstick (1) 68-0865 - 1968-72 $ 26.95 USD -
BSA A50 / A65 Gear Change Shift Return Spring 57-4009 (1) - 1970-72 (NOS) $ 12.95 USD -
BSA A50 / A65 High Gear Replacement Bushings By CBS (1 PAIR) - 68-3178 - 1962-72 $ 39.95 USD -
BSA A50 / A65 Inner Timing Cover Gaskets (1) - 1962-72 - Choose From Early / Late from $ 6.75 USD -
BSA A50 / A65 Kickstart Quadrant (1) 68-3049 - 1962-70 $ 139.95 USD -
BSA A50 / A65 Kickstart Return Spring Retaining Plate (1) - 68-3054 - 1962-72 $ 28.95 USD -
BSA A50 / A65 Layshaft Selector Shift Fork (1) - 68-3160 - 1962-72 (NOS) $ 59.95 USD -
BSA A50 / A65 Layshaft Thrust Washers (1) - Choose Thickness from $ 12.95 USD -
BSA A50 / A65 Primary Chain Adjuster Bolt Lock Nut (1) - 68-0237 - 1962-72 $ 5.95 USD -
BSA A50 / A65 Primary Cover Gasket (1) - 71-1432 - 1962-72 $ 6.25 USD -
BSA A50 / A65 Quadrant Gear Change Plungers (2) - 68-3096 - 1962-72 $ 44.95 USD -
BSA A50 / A65 Stop Plate Grub Screw (1) - 68-3118 - 1962-72 $ 3.95 USD -
BSA A50 / A65 Triplex Chain Wheel Basket - 57-2773 - 1966-72 $ 199.95 USD -
BSA A50 / A65 Twins Gear Shift Quadrants & Repair Shafts (1) - Choose Part Type from $ 39.95 USD -
BSA A50 A65 Kickstart Ratchet & Pinion Gear (1) - Choose Gear Type from $ 79.95 USD -
BSA A65 Cam Plate 57-4026 (1) - 1970-72 $ 89.95 USD