Both Grizzlies are stock but one has Barker Duels and bazzaz FI. Clutching is the same in the primaries but the bike with the duels has a gold spring and the stock has an orange. The gold spring should make the bike with the duels have slower upshift. So the results would have been worse if they had the same spring. Both bikes running Pitbulls in 25.5". Race is 300 feet. Traction was an issue but pretty evident of the outcome. Never have I done a power mod for this cheap with this much gains. at 15-20 kmh in high range it will wheelie.
