Evgeny Bobryshev finished in third at Sago during Round 8 of the Japanese Motocross Championship.
Breaking cover at Round 8 of the Japanese Motocross Championship in Sago on October 23, MX1 Honda World Motocross riders Rui Goncalves and Evgeny Bobryshev were riding aboard what looks like a 2013 prototype Honda CRF450R.
While official details are scarce, the prototype model looks to have a modified exhaust header, which now exits from the right side of the cylinder instead of the left. It wraps around the left side of the frame with the mid-pipe crossing back over the rear of the cylinder to join the muffler in its standard position - on the right side.
Also pricking our interest is what looks to be a factory-mounted hydraulic clutch - something we've already seen this year on both Chad Reed's and the GEICO Honda team rider's CRF450Rs. The bike also comes with an aluminium fuel tank.
A modified muffler, hydraulic clutch and a aluminium fuel tank are the external changes we've noticed on this prototype model. Pic: mxworksbike.com
Goncalves took first and Bobryshev finished up third in the 450 class (IA1) at the Japanese round.
Expect the Honda World Motocross team to refine a 2013 model during the 2012 World Motocross Championship.
Take a look at more shots of the 2013 prototype model from the Japanese round.