Installed my GEBE with Tanaka 40 w/105g GEBE wheel today on a 2013 Trek Mountain bike. It pedaled off smoothly before I applied throttle and the throttle response was smooth and it accelerated smoothly. When I let off on the throttle though, it seemed like there was alot of drag/resistance. Is this normal? Thanks
GEBE Drag
- Thread starter Bonefish
- Start date
butre
Well-Known Member
That's called engine braking, and is completely normal. http://en.wikipedia.org/wiki/Engine_braking
butre
Well-Known Member
I had manual clutches in my head, I'm not sure what's going on in that case
LewieBike
Well-Known Member
It depends on what the engine speed was when you released the throttle. Until the engine spools down to below 3000~3500 rpm, the shoes are going to remain in contact with the clutch bell. So if the wheel is spinning the engine faster than this you will get some drag from engine braking.
Here is a pict. of my bike with the GEBE kit installed with the Tanaka 40 with 105g Velocity rim. I'm getting some drag/resistance and the top speed is only 27mph. Does anyone know what this drag might be and why is my top speed only 27 mph with a 13Tooth gear? Thanks.
grinningremlin
Active Member
The engine must break in, the drive must "wear" in, the belt must warm and wear in.You will always have a little drag with the belt on (engaged or disengaged), I'm completely broken in (pf4000 and gebe) and only get to 32mph.If you're not going to use the engine you should remove and wrap the belt away from all spinning parts.
allen
New Member
If this is happening Day 1 minute 1, I have had the same thing with a small stationery engine,and 2 chain saws, No experience with bike motors where the wheel still keeps moving... but my above probs sorted after a small amount of use,both the pawls and the drum from new appeared to be a bit rough at the mating surfaces(inside centrifigal clutch) Hope you get it sorted...
