NGM Forward's Colin Edwards has been left with a lot of work to do to elminate the chatter that plagued his three-day MotoGP Jerez test aboard the BMW-Suter CRT bike but some help from suspension gods Ohlins has gone some way to alleviating the vibration.
Edwards, who was hotly-tipped to run away with the class before Randy De Puniet rocked up with his Aprilia, had to ride around the chatter problem by braking earlier and taking different lines but managed to reduce the effects, thought to be caused by an engine mounting position, by altering the geometry.
“Inherently we still have some problems. Theoretically we have a high front engine mount that is creating a lot of issues for us. We have a lot of vibration, engine noise through the handlebars, which is also related to that. Chatter, we still have the same type of….you know, you get in 45 degrees/50 degrees angle and if you have too much weight on the front or trying to push too hard I can make this bike chatter anywhere," said the Texan.
"So I have to ride around it, brake a little early and minimizing the time from break to gas to ride around the chatter. It makes it hard, the new Bridgestone front has helped though, it has tamed it down. We played a little bit today with the chassis, thanks to Ohlins they helped out a lot with some made it better also, little different geometry in the front and it good better. It was better, it was faster, it was easier to ride but we still haven’t cured 100% the problem.
"Riding in the rain for the very first time was actually didn’t feel that bad, we kind of shot ourselves in the foot the first time we when out but the bike probably felt the best. We came in and we really tried to reengineer the wheel with electronics, create something more friendly but I think we got it a little bit wrong. We know now so I think next time we have a rain session we will be fine."