Mine was never a stock Lectra (it's the bike Lawrence Rhodes used to own.. hi Lawrence!). The frame however appears to be stock, it's the electronics that I did (Alltrax etc). The long term issue has been it got a 10 mile range whereas on the evalbum I see plenty of bikes with a similar size and battery pack who get a 20 mile range. Sadness ensues.
In my diagnosis process there are two things which are clearly issues..
One is the rear wheel now has (after 1000+ miles of my riding) flat spots along one side, not the other, of the wheel surface. Obviously the wheel has been misbalanced. I noticed the eccentrics were at different positions (e.g. one at 12 o'clock the other at 3 o'clock) and obviously that would geometrically skew the wheel around. So I've taken care to adjust the eccentrics so they're at the same position. I assume that's enough to ensure the wheel is properly aligned? It looks good by eyeball.
Second thing is the biggie for which I have a serious question ...
On the eccentrics there are two holes.. one hole has the axle going through it, and on my bike the other hole has a bolt. It seems from the lectra manual (Scott sent out a link recently) there isn't supposed to be a bolt through the other hole? In any case on my bike there is a turnbuckle between that bolt and a mounting point on the swingarm. It seems the turnbuckles are there to keep the eccentric in a given position. Lawrence, did you add that bolt & turnbuckle?
The problem is - I just removed the chain (it was rusty and stiff) and the wheel itself spins freely. But there's a slight grinding noise from the bolt as the wheel spins. THAT is obviously going to be making an effect on mileage.
I'm wondering .. is the turnbuckle/bolt necessary? Was that a stock feature? If it's not supposed to be there how to ensure the eccentrics stay in position?
- David Herron