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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.
AFT Bearing, Lifter Plate – KLX110 
AFT Bearing, Lifter Plate – KLX110$14.99$14.99$14.99TB Piston Kit, 53.5mm, High Compression & Forged – KLX110 
TB Piston Kit, 53.5mm, High Compression & Forged – KLX110$99.99$99.99$99.99TB Cylinder, 53mm, aluminum – KLX110 
TB Cylinder, 53mm, aluminum – KLX110$175.99$175.99$175.99TB Chain Guard, Red – Z50 1980-82 
TB Chain Guard, Red – Z50 1980-82$26.99$26.99$26.99TB Intake Manifold, Race Head, Billet – KLX140 
TB Intake Manifold, Race Head, Billet – KLX140$74.99$74.99$74.99TB 149cc Big Bore Kit, 55mm Forged Piston – 2022+ Grom/Monkey125 TB Brake Pedal, Chrome – Monkey 125 Stem Nut & Washer – XR80 & Others 
Stem Nut & Washer – XR80 & Others$11.99$11.99$11.99TB Piston 52mm Ring Set (88cc) – 69-78 Models 
TB Piston 52mm Ring Set (88cc) – 69-78 Models$19.99$19.99$19.99TB Gas Cap & Billet Breather – Z50 Aftermarket Tanks 
TB Gas Cap & Billet Breather – Z50 Aftermarket Tanks$18.98$18.98$18.98TB 88cc Kit & Cam Chain – 88+ Z50, XR50, & CRF50 
TB 88cc Kit & Cam Chain – 88+ Z50, XR50, & CRF50$154.99$154.99$154.99TB Wheel Hub, Front – Z50R 1980+ 
TB Wheel Hub, Front – Z50R 1980+From $110.99From $110.99$110.99TB 143cc Big Bore Kit, w/ Cam Chain – KLX110 2002-2009 
TB 143cc Big Bore Kit, w/ Cam Chain – KLX110 2002-2009$229.99$229.99$229.99TB Monkey 125 Grab Bar – All Year Models 
TB Monkey 125 Grab Bar – All Year ModelsFrom $44.99From $44.99$44.99TB Chain Guard, Chrome- Monkey 125 
TB Chain Guard, Chrome- Monkey 125$79.99$79.99$79.99TB Clutch Spacer 
TB Clutch Spacer$13.99$13.99$13.99TB Splash Guard – Z50R 88-99 Models 
TB Splash Guard – Z50R 88-99 Models$34.99$34.99$34.99TB Battery Connector – K1 
TB Battery Connector – K1$3.99$3.99$3.99AFT Ignition Switch – K2 Models 
AFT Ignition Switch – K2 Models$31.99$31.99$31.99TB Lower Exhaust Cover – Z50 K0-K1(fits K2) Models 
TB Lower Exhaust Cover – Z50 K0-K1(fits K2) Models$29.99$29.99$29.99TB Tail Light Bracket – Z50 K3-78 
TB Tail Light Bracket – Z50 K3-78$39.99$39.99$39.99TB Muffler Shield/Protector – Z50 K3-78 TB Replacement Stroker Crank Bearing 
TB Replacement Stroker Crank Bearing$14.99$14.99$14.99TB Reproduction Spark Plug Guard – CT70 K4-78 
TB Reproduction Spark Plug Guard – CT70 K4-78$26.99$26.99$26.99TB Oil Cooler Plate – Honda Style V2 Head 
TB Oil Cooler Plate – Honda Style V2 Head$49.99$49.99$49.99TB Gasket, Manual Clutch Cover – Honda 50cc & 70cc 
TB Gasket, Manual Clutch Cover – Honda 50cc & 70cc$1.99$1.99$1.99TB V2 Race Head Kit & 54mm/95cc Piston Kit – Honda 50cc & 70cc Various Models 
TB V2 Race Head Kit & 54mm/95cc Piston Kit – Honda 50cc & 70cc Various Models$549.99$549.99$549.99TB Rocker Arm Shaft Kit, Honda Style V2 Race Head 
TB Rocker Arm Shaft Kit, Honda Style V2 Race Head$10.99$10.99$10.99AFT Allen Head Bolt Kit 
AFT Allen Head Bolt Kit$16.99$16.99$16.99TB Turn Signal Indicator Assembly – CT70 K4-78 
TB Turn Signal Indicator Assembly – CT70 K4-78$59.99$59.99$59.99TB Turn Signal Indicator Assembly – CT70 K3 
TB Turn Signal Indicator Assembly – CT70 K3$59.99$59.99$59.99AFT Aluminum Rim Set – All Models (8×2.75″) 
AFT Aluminum Rim Set – All Models (8×2.75″)$61.99$61.99$61.99AFT 20mm Replacement Carb w/Cable 
AFT 20mm Replacement Carb w/Cable$72.99$72.99$72.99TB Spare Parts, Exhaust – For Z50 TBW0583, TBW0667 & TBW1343 
TB Spare Parts, Exhaust – For Z50 TBW0583, TBW0667 & TBW1343$35.99$35.99$35.99TB Muffler Shield kit – 76-78 Z50 
TB Muffler Shield kit – 76-78 Z50$69.99$69.99$69.99TB Adjuster Bolt, Brake rod – Z50 K3-79 
TB Adjuster Bolt, Brake rod – Z50 K3-79$1.99$1.99$1.99
