A high end kit that will bring more performance to your 4FU engine mounted on your DERBI GPR, GILERA SC, YAMAHA TZR, TDR, DT, DTR 125cc.

A bell machined in the mass lighter than the original and more resistant with an anti-wear treatment.

Quality smooth clutch plates, identical to the original for a refurbishment of your clutch system

BMC offers only the highest quality air filters that guarantee excellent airflow while filtering out impurities.

Competition lined discs to rebuild your clutch with quality products.

A single ring graphite piston that fits into your original cylinder.

The spare seal pack ATHENA for the kit P400210100001 mounted on HHONDA CRF, CRE, CRM, CRM F and CRE F 450cc.

Original clutch disc kit much cheaper than in dealerships.

A regulator of identical quality to the original but much cheaper than in a dealership.

A magnesium colored aluminum ignition cover from BOYESEN FACTORY RACING.

A black aluminum clutch cover from BOYESEN FACTORY RACING.

A magnesium colored aluminum clutch cover from BOYESEN FACTORY RACING.