Welcome to the TBoltUSA Tech Database! To visit our store, click here, or use the menus at the top of the page.
Pit bike Piston Sizing
First Measure your cylinder bore & Piston OD Diameter
(47mm , 52.4 , 54 & 60mm are comon stock sizes)
Now Measure your wrist pin OD
(13mm & 14mm are most common , a few are 15mm)
See our piston selection in Pit Bike engine Parts
Our engines use the Honda bolt pattern, and bolt into Z50, XR50, CRF50, CT70, CL70, SL70, XL70, ATC70, TRX70, DAX70, TRX90, Extreme, SDG, Sikk, Pitster Pro, Coolster, Orion, Thumpstar, OGM, Pit Pro, G2Moto, Braaap, Apollo and SSR pit bikes.
Our tech database has info about most common pit bike repairs, upgrades and troubleshooting. If you have a tip, drop us a line!
T Bolt USA, LLC
contact@tboltusa.com
(215) 800-0026
Alt: (704) 826-5887
Our main warehouse, shop & offices are in Pennsylvania, but we often ship from other warehouses around the country.
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