These were originally high-performance bikes and they'll respond to a little tuning like anything else.
The following items are a small sample of some of the performance parts that we stock.

Lightweight valve adjusters, hot cams, belt drive kits, high compression pistons, Black Diamond valves... We've got plenty of toys for your bike. Give us a call and let us know what you're looking for.

Triumph Twin Big Bore Kits

Upgrade your Triumph twin with a big bore kit.

JRC; 650 to 750
Morgo; 650 to 750
JRC; 500 to 530

Kits include pistons, rings, head gaskets and detailed instructions. Call for prices!

Progressive Suspension Fork Springs

Norton Commando: $69.95/pr

Triumph:
'70-on internal spring: $64.95/pr
External spring: $59.95/pr

Morgo Triumph Rotary Oil Pump

Dramatic increase in oil pressure! Some modifications and skills required to install.

Triumph unit twin 650/750: $286
Triumph non-unit twin: $280

K&N Air Filters

The leading name in intake filtration for vintage machines. Air filters in stock for most popular British machines as well as custom and race applications.

Call with your requirements for a price quote.

Triumph Unit 650/750 Primary Covers

ACK Products replacement flat track cover (will not allow use of alternator): $219.99

A&A (Barnes type) replacement flat track cover (will not allow use of alternator): $169.90

Custom finned cover: $329.00

High Performance Pushrods

Tubular construction and hardened tips means lighter and stronger than stock.

In stock for most popular British applications. Call with your model info for a price quote.

Triumph Twin Forged Alloy Hi-Performance Connecting Rods

Strong and light, reasonably priced. Call for details, may requires modifications to install.

650 Long Rod w/bolts: $175
750 Short Rod w/bolts: $175

Mikuni Carburators and Carb Kits

Tired of worn, leaky OEM carbs? hard starting? erratic idle? sticking throttle? We stock Sudco/Mikuni kits that include carb(s), manifold, adaptors, hardware and a range of jets.

Norton 750/850: 1x34mm, 2x32mm. Triumph 650: 1x32mm, 2x30mm early manifold, 2x30mm late manifold... Call with your model info for a price quote!

Please keep in mind that performance parts often require modifications to the machine and special mechanical skills and knowledge to install and run correctly and safely. Rabers Parts Mart is happy to answer any technical questions you may have regarding installing a performance part.