Did you press fit the clutch bell sleeve in?? My only concern is when the clutch bell gets hot will the sleeve stay in place, its thinner so hopefully it will expand more than the bell and stay tight.
Its cut perfectly and pressed in professionally. I didn't whack it in with a hammer. ;-). It's not going anywhere.
The only concern I had was the additional 40grams weight it added. Not sure if that's beneficial or not!?
Anyhow, took it out last night for a couple of hours.
Now it flies. First time I felt the power band. It really goes. Very very quick. :-)
Basically, we are gauging the performance of it on a 100m straight and racing against a cheap Chinese bike with a rider half my weight. This is the most technical way we could do it yesterday.
The characteristics of the ride are like this. As a stupid non technical way of explaining it. Feels like there are 3 stages to the ride.
Slow-medium speed takeoff for around 50m.
Feel a jolt, and the engine changes to a different noise kinda feels like a spluttery flat spot however the bike is actually accellerating faster. Lasts for about 2seconds.
Power band actually kicks in and rockets it for around 2 seconds where it does hit full speed.
I would say 50m of slow medium, to 10metres of transitions, to 10meters of pickup allowing it to get to the full speed within 70m.
Now yesterday I played with tightening the clutch springs. I done quarter turns with the aim of getting into the power band quicker. First 8 turns shown the 100m sprint getting quicker. The following 4 turns I think didn't help.
I have a few follow up questions.
1. Does the performance characteristics seem correct?
2. I cant seem to keep up with this Chinese bike until I get into the power band, at which stage I completely blow it away. (Is it just a case of i weight 190lb, Chinese bike rider is something like 120lb?)
3. I have a tachometer. Is there a way to tune the clutch with some technical precision?
4. Is there a way to be always in this power band immediately from setting off or is there always a stage where you are waiting to get into it?
Sorry for the not so technical explanation but that's the best way I could describe it.
I am really happy with the bike now, seems like good money spent. The track we are on mostly is very small though, I would say slow sharp corners at very low speed into short sweeping bends of only up to 40meters long. Would be great to tune the bike so that it could catch the power band throughout this short course.