CRF 400 Engine Kit

Achieve manageable power from your 2017-2023 CRF 450 with the woods and motocross friendly 400 Engine Bore Kit from RedMoto.
Tested by factory race teams internationally with race winning performance in the most extreme conditions.
 
World renowned Italian cylinder and piston manufacturer, Athena. The CRF 400 shares the same technical characteristics of its bigger brother, the CRF 450. It is aimed at the rider who demands power without the brute force of the 450. That doesn’t make the CRF 400 any slower. In fact, it is the bike of choice for professional racers in the most prestigious events around the world.
 The RedMoto CRF 400 R/RX engine kit swaps the original top end (piston, cylinder, seals) with one that has 92mm bore to reach a total displacement of 413cc.
 
Developed specifically for HONDA CRF 450 R/RX 2017-2023 
 
**ECU Remap NOT Required**