Nitro Engines .12 .21 .28 from HoBao. Suit 1:10th scale On Road and 1:8th scale Off Road
Hobao
Hyper .12 Nitro Engine STD head, Rear Ex, Non Pull Start
Hyper .12 Nitro Engine STD head, Rear Ex, with Pull Start
Hyper .12 Nitro Engine STD head, Side Ex, with Pull Start
Hyper .21 PRO Nitro Engine STD head, Rear Ex, with Pull Start
HoBao
Mach .21 Nitro Engine Turbo head, Non Pull Start
Mach .28 Nitro Engine Standard head, Non Pull Start
Mach .28 Nitro Engine Standard head, with Pull Start
