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Trail Bikes
TBParts is dedicated to providing high-quality, affordable performance parts for pit bike, mini bike, and trail bike fans. Since 1995, their big bore kits and other performance enhancements, crafted from top-notch components customized to their unique specifications, have gained tremendous popularity due to their proven reliability and excellence.
TB Piston Ring Kit – 55.5mm 
TB Piston Ring Kit – 55.5mm$21.99$21.99$21.99TB Cylinder (64mm) - Grom / Monkey 
TB Cylinder (64mm) - Grom / Monkey$197.99$197.99$197.99TB Cam Bearing Reducer & Plate – KLX110 
TB Cam Bearing Reducer & Plate – KLX110$9.99$9.99$9.99TB Number Plate – Z50R 88-99 & Other Models 
TB Number Plate – Z50R 88-99 & Other Models$21.99$21.99$21.99TB Mini Wrench Set 
TB Mini Wrench Set$12.99$12.99$12.99TB Handlebar Pad, Black w/ TB Logo 
TB Handlebar Pad, Black w/ TB Logo$8.99$8.99$8.99TB Cam Cover, Billet – KLX140 
TB Cam Cover, Billet – KLX140$59.99$59.99$59.99TB Crankcase Gasket 
TB Crankcase Gasket$5.49$5.49$5.49Trail Bikes 165cc Bore Kit - KLX110/L / Z125 
Trail Bikes 165cc Bore Kit - KLX110/L / Z125$229.99$229.99$229.99TB Billet head covers, w/TI hardware – KLX110/Z125 
TB Billet head covers, w/TI hardware – KLX110/Z125$89.99$89.99$89.99TB Shock Set, HD Chrome – CT70 
TB Shock Set, HD Chrome – CT70$79.99$79.99$79.99HD Rear Shock & Front Fork Springs – KLX140 R & L 
HD Rear Shock & Front Fork Springs – KLX140 R & L$279.99$279.99$279.99Seat – AFT – Z50R 89-99 Models 
Seat – AFT – Z50R 89-99 ModelsFrom $69.99From $69.99$69.99TB Intake Boot, 30x58mm 
TB Intake Boot, 30x58mm$15.99$15.99$15.99TB Race Head Carb Kit, Nibbi PE26 – KLX110 
TB Race Head Carb Kit, Nibbi PE26 – KLX110$159.99$159.99$159.99TB Top End Gasket Kit, 58mm – CRF110 All Models 
TB Top End Gasket Kit, 58mm – CRF110 All Models$18.99$18.99$18.99TB Gasket, Magneto Cover – KLX140 
TB Gasket, Magneto Cover – KLX140$7.00$7.00$7.00TB Piston Kit, 67mm 
TB Piston Kit, 67mm$81.99$81.99$81.99TB Fork Assembly Set, HD springs & Gold TiN Coated uppers – KLX110 & KLX110L 
TB Fork Assembly Set, HD springs & Gold TiN Coated uppers – KLX110 & KLX110L$379.99$379.99$379.99TB Number Plate – Z50R & Other Models 
TB Number Plate – Z50R & Other Models$21.99$21.99$21.99TB Kick Starter – Black – Z50R & Other Models 
TB Kick Starter – Black – Z50R & Other Models$17.99$17.99$17.99TB Heavy Duty Clutch Kit 
TB Heavy Duty Clutch Kit$99.99$99.99$99.99TB Billet Oil Filter Cover w/Filter – KLX140 
TB Billet Oil Filter Cover w/Filter – KLX140$22.99$22.99$22.99TB Kick Starter – Chrome – Z50, CT70 & Other Models 
TB Kick Starter – Chrome – Z50, CT70 & Other Models$14.99$14.99$14.99TB Brake Shoes – All Models 
TB Brake Shoes – All Models$11.99$11.99$11.99TB Manifold, Nibbi 17-22mm – KLX110 TB Cable Kit, Front, Extended – Z50 1986+, XR50, CRF50 
TB Cable Kit, Front, Extended – Z50 1986+, XR50, CRF50$39.99$39.99$39.99TB Aftermarket Fork Set – Z50A K1-78 Models 
TB Aftermarket Fork Set – Z50A K1-78 Models$124.99$124.99$124.99TB Piston Kit – 88cc Race Head 
TB Piston Kit – 88cc Race Head$69.99$69.99$69.99TB KLX140 Big Bore Kit & Performance Cam – All KLX140s 
TB KLX140 Big Bore Kit & Performance Cam – All KLX140s$264.99$264.99$264.99TB Steering Stem Nut & Washer – All Z50, All CT70, & Other Models 
TB Steering Stem Nut & Washer – All Z50, All CT70, & Other Models$3.99$3.99$3.99TB Grom Oil Cooler Kit 
TB Grom Oil Cooler Kit$169.99$169.99$169.99TB 186cc Big Bore Kit – Grom / Monkey 
TB 186cc Big Bore Kit – Grom / Monkey$274.99$274.99$274.99TB Piston Kit, 64mm 
TB Piston Kit, 64mm$75.99$75.99$75.99Throttle Cable, AFT 30mm Carb – Various Pitbike Models 
Throttle Cable, AFT 30mm Carb – Various Pitbike Models$18.99$18.99$18.99AFT Gas Tank – Z50 K3-78 Models 
AFT Gas Tank – Z50 K3-78 Models$125.99$125.99$125.99
