Welcome to the TBoltUSA Tech Database! To visit our store, click here, or use the menus at the top of the page.
Pit Bike engines are based on Honda 70 type engines
These engines are currently in Honda CRF50 , CRF70 bikes
The 2 main motor mounts and bottom 4 mounting points(pegmounts) are the SAME on all Pit Bike Engines
Pit bike Engines fit in All China Pit bikes and Most older / current Honda bikes with horizontal OHC engines (NOT KLX110 or DRZ110)
Major sizing differences are
1) 90-110cc is 9mm taller at the head due to longer cylinder
2) 120-UP are 15mm taller due to longer Cylinder
3) the CRF50 has a recess in the Clutch cover to allow the bottom pegmount , Pit bike engines do not
But there are many simple bolt on Pegmonts that can be installed
This is a sizing diagram for Lifan 50-70cc - Same as CRF50/70
Pit bike Engines are approx 11in Wide (280mm)