These work great on many machines, including:

Honda

CRF250R, CRF250X, CRF450R, CR125, CR250, CR500 XR250, XR400, XR650

Suzuki

RM125, RM250, RMZ250, RMZ450, DR, DRZ

Kawasaki

KX125, KX250, KX250F, KX450F, KLR

Yamaha

YZ250, YZ125, YZ250F, YZ450F, TTR, WR

KTM

And many more