TB Parts Big Bore Kits

TB KLX140 Big Bore Kit – 170cc

TB 147cc Big Bore Kit – CRF110

TB Big Bore Kit, 138cc – CRF125

TB 186cc Big Bore Kit – Grom / Monkey

TB 186cc Grom Big Bore Kit and Oil Cooler Kit

TB 186cc Grom Big Bore Kit, Oil Cooler Kit & Performance Camshaft

TB 149cc Big Bore Kit, 55mm Forged Piston, & Cam – 2022+ Grom/Monkey12

TB 149cc Big Bore & Injector – 2022+ Grom/Monkey125

TB V2 Race Head Kit & 52mm/88cc Big Bore Kit – Honda 50cc & 70cc Various Models

TB 149cc Big Bore Kit, 55mm Forged Piston – 2022+ Grom/Monkey125

TB 143cc Big Bore Kit, 60mm – KLX110/Z125 All Models

TB 132cc Big Bore Kit - 13-Present CRF110

TB 130cc Big Bore Kit - TTR110

TB 130cc Big Bore Kit – Filter & Jets Included - TTR110

TB Race Head 88cc Big Bore kit and 20mm Carburetor Performance Kit

TB 143cc Big Bore Kit,V2 Race Head – KLX110/Z125

TB CRF110 132cc 55mm Big Bore and Carb Kit

Trail Bikes 88cc Big Bore kit 20mm Carburetor Kit and Race Cam Performance Kit

TB CRF110 132cc 55mm Big Bore with Big Valve Kit and Carb Kit

TB KLX140 Big Bore Kit, VM26 Carb Kit, & Performance Camshaft – All KLX140s

TB 143cc Big Bore Kit, Race Head V2, & Intake Kit – KLX110

TB 143cc, Forged V2 Big Bore Kit – KLX110 & Z125

TB 114cc High Compression Big Bore Kit – All TRX90

TB KLX140 Big Bore Kit & Performance Cam – All KLX140s

TB KLX140 Big Bore Kit, Mikuni VM26, & Carb Kit – All KLX140s

TB V2 108cc Stroker Big Bore Kit – Honda 50cc & 70cc 1988+

Trail Bikes 165cc Race Head V2 Big Bore Kit and 28mm Carburetor Performance Kit for KLX110

Trail Bikes 165cc Big Bore Kit and 28mm Carburetor Performance Kit for KLX110

TB Stock Head, 88cc Big Bore Kit – Various Models

Trail Bikes 88cc Big Bore Kit + Race Head V2 + Mikuni VM26 Carb Kit

TB 108cc Stroker Big Bore kit, Race Head V2 Kit , & Mikuni VM26 Carb Kit – Honda 50cc & 70cc 1988+

TB 143cc Big Bore Kit, w/ Cam Chain – KLX110 2002-2009

TB 114cc Big Bore Kit, Race Head, 26mm Mikuni VM26 Carb/Kit – TRX90

TB 170cc, HC, Forged Big Bore & Cam Kit – KLX140

TB V2 88cc Big Bore Kit & VM26 Carb/Kit – Honda 50cc & 70cc 1982+

TB 143cc Big Bore Kit, w/ Cam Chain – KLX110 2010+