Advanced Search

Standard Side Change Gearbox and Overdrive

Fully Reconditioned side change gearboxes and overdrives available from stock.

Rebuilt with new bearings, baulk rings, seals and layshafts etc. assembled into a combination of new and used cases with original standard helical gear sets and 28% overdrive. Supplied without bellhousing on an outright sale basis.

Nno exchange required.

LAYSHAFTS

Top quality reproduction of the original to the highest standard, manufactured by ourselves due to the short lifespan of our competitors products.

REPAIRED LAYGEARS

We carry a large selection of repaired laygears in stock, even for straight cut gear sets.

These have a new first gear fitted. As long as damage to your laygear is only on the first gear, it should be suitable for exchange.

BRONZE LAY GEAR THRUST WASHERS

Bronze reproduction of the standard items to suit early and later lay shaft diameters - Front and Rear.

DIPSTICK 'O' RING CONVERSION

Stop another annoying oil leak. A steel slug with an 'O' ring seal, to simply slip onto your dipstick in place of the felt seal.

LAY GEAR TRUST PLATES

Reproduction of the standard items to suit early and later lay shaft diameters.

STUDS

Simple but necessary items.

UP-RATED MAIN SHAFTS

An improvement on the original that uses a higher grade steel and a redesigned 3rd gear locking ring to prevent cracking and breaking.

These shafts are also spline ground as original, not hobbed as our competitors, thus ensuring the gear selector hubs fit smoothly.

PRE-LOAD WASHERS

At 0.035" thick these increase the clamp load of the front and rear main gearbox bearings substantially.

Fits all BN2 to BJ8 gearboxes although occasionally some cases may require the register machining deeper to accept these.

A must use item for road or race to help increase the life of the gearbox.

ABUTMENT COLLAR AND WASHERS

A reproduction of this high wearing standard BN6 - BJ8 item in a higher grade steel.
Now available in 2 lengths.