Motocross Engine Rebuilds | BCR Performance

MOTOCROSS ENGINE SPECIALISTS

THE UK'S MOST COMPLETE MOTOCROSS ENGINE WORKSHOP

At BCR Performance, we’re not just another motocross shop — we’re the UK’s most complete motocross engine specialists. While most MX workshops focus only on basic servicing and rebuilds, we take things much further. Every stage of engine work is carried out in-house, from precision machining and cylinder head repairs to valve seat cutting, crank building, rebores, honing, and specialist welding. With more facilities under one roof than any other MX shop in the country, we deliver factory-level performance, reliability, and attention to detail for every rider

Precision Engine Services

We specialize in a wide range of precision engine services tailored to meet diverse needs and budgets. Whether you require a complete race engine build, a detailed engine refresh, or expert repair work, we have the knowledge, tools, and experience to deliver outstanding results.

From minor fixes to major rebuilds, every job is handled with care and precision. Each engine is fully disassembled, thoroughly inspected, and measured to factory specifications using advanced diagnostic and measuring equipment. We provide detailed parts quotes and multiple build options to suit your performance goals and requirements.

Regular maintenance is a key part of what we offer, especially for 4-stroke and 2-stroke motocross engines. Preventative care helps avoid costly failures and keeps your bike performing at its best, race after race.

In House Services:

Full Race Engines
Cylinder Head Gas Flowing
Cylinder Head Decking/Skimming
Crankcase Welding & Repair
Valve Seat Recutting & Replacement
Valve Guide Replacement
Crank Pressing & Truing
Camshaft Modification
Damaged Cylinder Head Repairs
Rebores
Decompression Levers
General Engine Refreshing

Why Choose BCR Performance?

We offer more in-house services than any other motocross shop in the UK, providing you with one trusted place for all your engine performance needs. Our extensive in-house capability allows us to maintain full control over every aspect of the engine build — delivering unparalleled quality, consistency, and turnaround times.

Using the latest measurement technology, precision machining, and race-proven practices, we ensure every engine meets the highest standards of performance and reliability.

Whether you’re chasing championship wins or simply want your engine performing at its best, we’re committed to providing expert service, tailored solutions, and unbeatable results.