JHS Racing Bristol & South West motorcycle workshop and performance centre

Special offer motorcycle tyres in Bristol

JHS Racing are UK suppliers of high quality performance motorcycle parts & accessories:

Suzuki SV650 super twin racing motorcycles

Custom-built Supertwin racing & track motorcycles

An affordable route into competitive motorcycle racing.

JHS Racing create bespoke, hand-built racing motorcycles that equip you with a highly-competitive but affordable foundation for participating in both club and national-level road racing.

With our successful and distinguished record of competing at many levels, including the British Supersport series and our record-breaking success at the Manx in 2011 (click here for details), you can benefit from the race-proven knowledge and experience we bring to bear on every machine that we build.

One of our most frequently used platforms for race bike development is Suzuki's SV650, which provides both a beautifully balanced frame together with a tough and enduring engine that is well-suited to a range of tuning modifications. We also have extensive experience with race-preparing the Triumph Daytona 675.

Our racing motorcycles are supplied fully regulation-compliant and ready to race.

Typical specifications of our built-to-order racing machines are described below:

JHS SV650 billet crankshaft - Click on image to enlarge

JHS SV650 custom CP pistons - Click on image to enlarge

JHS SV650 H-beam con rods - Click on image to enlarge

JHS SV650 close ratio gearbox - Click on image to enlarge

(Click on images to enlarge)

Supertwins SV650-based racing motorcycles:

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Our Supertwins machines (eligible for Irish racing series, Manx & TT) are offered in two base specification levels: Clubman and Expert.

Based upon a low-mileage, fuel-injected donor machine which is stripped and rebuilt to the following specifications:

Clubman spec:
USD Suzuki front end with radial brakes | Elka 3-way adjustable rear shock | New Pirelli tyres | Hel brake lines | SES adjustable rear sets | SES clip-ons | AFAM sprockets and 520 race chain | Full M4 race exhaust system alloy can (upgrade to titanium is an option) | Lightweight fairing bracket | Lightweight sub frame | Lightweight battery box | Smaller light-weight, high-output battery | Power commander (with custom map) quick shifter | JHS race bodywork with Dzus fasteners (painting is extra ) | JHS race seat pad | JHS race screen | New brake pads | Race loom | Ram air system, large throttle bodies.

Engine stripped and inspected; bearings and gaskets replaced as required
Rebuilt with JHS-spec con rods (essential for racing)
JHS forged high-compression piston kit (normal spec is 13.1 cr)
JHS gas-flowed heads
JHS spec race cam kit

These modified engines produce 82bhp PLUS.

Further options are available at additional cost (please call to discuss).

£ P.O.A

Expert spec:
Öhlins usb front end with Brembo radial brakes | Öhlins rear shock | New Pirelli tyres | Hel brake lines | SES adjustable rear sets | SES clip-ons | Race loom | AFAM sprockets and 520 race chain | Full M4 race exhaust system alloy can (the can may be changed once final machine is built) | Lightweight fairing bracket | Lightweight sub frame | Lightweight battery box | Smaller lightweight, high-output battery | Power commander (with custom map) | Translogic QS4 Quickshifter | JHS race bodywork with Dzus fasteners | JHS race seat pad | JHS race screen | New brake pads | Ram air system, very large throttle bodies | Painting in base colour.

Engine stripped and inspected; bearings and gaskets replaced as required
Rebuilt with JHS-spec con rods + (optional extra upgrade) billet crankshaft
JHS forged high-compression piston kit (normal spec is 13.1 cr)
JHS gas-flowed heads
JHS spec race cam kit
JHS valves & valve spring kit
JHS adjustable cam sprockets
JHS close-ratio gearbox
Sigma slipper clutch with Barnett clutch kit

This engine specification will reliably produce 90bhp PLUS under racing conditions.

£ 16,500 +VAT

Mini Twins specification SV650-based racing motorcycles:

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Our Mini Twin specification machines are based upon a low-mileage, fuel-injected donor machine which is then stripped and rebuilt to the following specification:

Forks serviced, revalved and fitted with Öhlins fork springs | Elka 2-way adjustable rear shock (upgrade to 3 way is an option) | New Pirelli tyres | Hel brake lines | SES adjustable rear sets | SES clip/ons | Race loom | Talon sprockets and 520 race chain | Full M4 race exhaust system alloy can (upgrade to titanium is an option) | Lightweight fairing bracket | Lightweight sub frame | Lightweight battery box | Smaller, lightweight high output battery | Power commander (with custom map) | JHS race bodywork with Dzus fastners (painting is extra ) | JHS race seat pad | JHS race screen | New brake pads

Engine stripped and inspected; bearings and gaskets replaced as required.

We do offer other options which will be extra. Please call to discuss these further tuning options and costs.

£ P.O.A

Mini-Twins Series

In recent years the Mini Twin Racing Series has proved to be an enormous success, making low-cost competitive motorcycle sport accessible to many more people. Popular with spectators too, the series has in the past even been televised on the British Eurosport channel.

Participating bikes must be four-stroke twins under 650cc. Certain modifications are permitted, such as a race pipe, fuelling changes, suspension units and race fairings. Please refer to the organizers web sites for full details of the current regulations.

Key organizers for the Mini-Twins series are:

North Gloucester Road Racing (www.ngroadracing.org) - whose web site includes a useful guide for those wishing to know more about what's involved in getting into racing;

the British Motorcycle Racing Club (www.bemsee.co.uk), whose site also offers a comprehensive source of information about the sport.

Team JHS's Dan Harrison exceeds at Snetterton Thundersport round.

30-04-2013

Team JHS rider Dan Harrison put in an extraordinary performance on our SV650 Minitwin at the Snetterton round of Thundersport GB, taking four victories and setting a new lap record...

Read more ...

Performance motorcycle exhausts & end cans from JHS Racing of Bristol


	JHS Racing Limited, Unit 3, Unity Court, Broadmead Lane, Keynsham, Bristol, BS31 1ST Tel: 0117 986 8844 Email: jhsracing@lineone.net Registered in the UK no. 6399852	All material Copyright © JHS Racing Limited Site Map design :: westernaspect