I have an R1 shock with a 180lbs spring. I am about 11 stone.
There used to a webpage from the USA about setting up these suspension units for Lambrettas, but I can’t find it any more.
Is anyone familiar with the process of tuning these units?
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hullygully wrote:Chiggy bud
vegansydney wrote:The R1 conversion info was on the old LCUSA site which is long gone. You maybe able to find it on the wayback machine if you do some digging, but from memory it was little more than instructions on how to compress the spring in order to remove it.
Honest question: what about lateral movement and flex from engine mounts? All OEM Lambretta shocks have rubber buffers in both eyelets--as does every Lambretta-specific aftermarket shock I've seen. The R1 shock doesn't. Interesting that BGM quickly changed their shock design to incorporate buffers (V2) soon after releasing their shock. I know absolutely nothing about suspension, but I assume these buffers work in conjunction with the engine mounts to allow for flex and movement.
Leotech wrote:...Ref the lateral movement, thats why R1 shocks got a rep for breaking shafts, combination of no lateral movement due to not being rubber mounted and worn engine mounts. When the engine starts to fish tail the shock shaft if taking all the lateral loads.
I made some convex bushes for my R1 shocks so they will "wobble" when mounted. It's just a bush and rather than being parallel where it locates into the shock it has a radiused profile, it lets the shock rotate through about 10º on the mounts and lessens the lateral stresses on the shock shaft.
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