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NameLogoLocationTypeStatusParts
Accu-ProductsUSASupplierIn-BusinessAftermarket GP Accessories
Rising Sun CyclesUSASupplierIn-BusinessHRC/Yamaha and Aftermarket Parts
SEELGermanyManufacturerUnknownHigh-End engine kits
SpeedFiber/SpainManufacturerIn-BusinessSupplies fairings and CNC parts to GP Teams and Dorna
TSOUSASupplierIn-BusinessHRC/Yamaha and Aftermarket Parts
Battle FactoryJapanManufacturerIn-Businessstands, rearsets HRC Parts
K1 RacingAustraliaSupplierIn-BusinessHRC Parts and Servicing
SP125 RacingUKSupplierIn-BusinessAftermarket and HRC Spares
Wossner PistonsUSAManufacturerIn-BusinessPistons
Aly-Tek Race ComponentsAustraliaManufacturerIn-BusinessRearsets and CNC Components
B-Spoke DesignAustraliaManufacturerIn-BusinessFairings (Carbon and Fiberglass), Race Prep
TKRJJapanManufacturerIn-BusinessReplacement Conrods
TSRJapanManufacturerIn-Business (No longer making 125 parts)Ran a 125 team until early 2000's. Focusses now on SBK parts and some NSF Moto3 parts
TSR WorldwideJapan / EuropeSupplierIn-BusinessHRC Parts
VHMNetherlandsManufacturerIn-BusinessCranks, Pistons and Heads
CMS Race PerformanceAustraliaManufacturer/SupplierNo longer in businessAftermarket parts, Airboxes and bodywork, etc
He-Ja MotortechnicsNetherlandsManufacturerIn-Business (no longer supporting 125gp?)Very fast kit engine
Dan Kyle RacingUSASupplierIn-BusinessOhlins