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, KLRYamaha
YZ250, YZ125, YZ250F, YZ450F, TTR, WRKTM
And many more