Allens Performance Ltd.

Benelli Sei Six Cylinder Keihin CR Carburettor Rack

June 12th, 2019

The latest off my bench: A set of specially built Benelli Sei Keihin CRS26 26mm racing Smoothbore carbs. Built to order, replacing three standard Dellortos, special spigots made to fit individual manifolds, imagine the sound!
Benelli Sei Kehin CRS26 Smoothbore Carb Set, Allens Performance Ltd, Rack of Six

Thanks from Lewis Ranger

December 6th, 2018

We do aim to please Lewis Ranger!
Leis Ranger 2018 British Clubman Enduro Champion Husqvarna TX150 RangersKe

December 4th, 2018

Next time you’re rebuilding carbs with repair kits, bear this in mind.
Pattern (Left) vs Genuine Float valves under the microscope. Hmmm!

Pattern Float Valve Example

Genuine Float Valve Example

November 28th, 2018

Another nice home for an Allens Performance carburettor!
A Mikuni VM26 looking pretty on a Moto Guzzi Falcone 500cc.
Mikuni VM26-8637 on Moto Guzzi Nuovo Falcone 500cc

Suzuki GSXR750WP FCR39’s

July 26th, 2018

The most recent carb build, shaft made at Allens. The next time you see these, they should be racing around the Isle of Man at the Classic TT!

Keihin FCR39 Horizontal Carbs Suzuki GSXR750W Respaced Allens Performance Ltd

New Moto Guzzi VM32 Carb Kit Available!

July 10th, 2018

Meet VM32-0407-K, Mikuni VM32’s for the big Guzzi Twins. Including Allens Performance specially cast and machined manifolds! Smoothest tickover ever.
Moto Guzzi Big Twin 1000G5 VM32 Mikuni Carb Carburettor Kit

CR 29 Smoothbores, Kawasaki Z1000

March 7th, 2018

Just finished! One lucky lad will be able to replace those nasty CV’s with a set of beautiful Keihin smoothbore CR29’s. Complete with specailly made airbox adaptors by Allens.CRS29 Z1000 Carbs carburettors with special Airbox Adaptors


TM24 Flatslide Plus Solenoid Controlled Powerjet

May 25th, 2017

Some powerjet conversions are more work than others… The TM24 really isn’t designed to be used this way. But nevermind, we have a milling machine and we can be stubborn at Allens Performance!

Mikuni Tm24-9 with electronic solenoid powerjet conversion

April 19th, 2017

Here we go!

Replica Yamaha Race Kit Exhaust Flange Castings ready to be machined at Allens Performance.

Many possible applications include RD350LC2 YPVS, TZR250 RD500, RD350LC.


Replica Yamaha Race Kit Exhaust Flange Castings RD350YPVS TZR250 RD500 RD350LC

Yamaha XT225 Serrow Electric Start TM28 Carburettor Conversion Kit

February 8th, 2017

A TM28 carb conversion we developed at Allens Performance to replace the troublesome CV carburettors found on the Yamama XT225 Serrows. This one is for the later bikes with electric start only. It fits the standard rubbers and is supplied with a new throttle and cable kit. Jetted to suit a standard bike. These bikes are a great compromise between light weight for ease of off road use, sufficient performance to be safe in modern traffic and flexible engine performance allowing easy riding on and off road.

Yamaha XT225 Serrow Electric Start TM28 Carburettor Conversion Kit

Yamaha XT225 Serrow Electric Start TM28 Carburettor Conversion Kit

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