Andy B.L.C. wrote:Don't understand WHY!? (but do...) the currently only commercially available rack & pinion easy clutch remains in the hands of one hugely profiting, by it, company. Check thesteelweasel proto type geared clutch mechanism... Reckon even I could do that!
Not sure of the question, unless you are one of the few with non-arthritic 'Lambretta clutch hand syndrome'
I've seen the video & could do that, but for a tenner off eBay, I have hardened & ground rack & pinion set that will fit when I make a top hat bush to fit the rack & modify the pinion by reducing the diameter, or enlarge the existing cover holes.
As for the commercially available conversions, there is the CASA version & CST's. The latter would be my choice & I don't think Martin is making a "huge profit"
Any profiteering is the result of current scooterists wanting bling in the form of engine adornment of parts that will wear out quickly, or buying standard industrial bearings & chains from dealers rather than power transmission specialists or pistons that are no better than OEM Jetski, Kawasaki, Suzuki or Yamaha etc etc
That said, it's all a matter of personal choice. I put my faith & trust in a Serveta rear hub any day & can keep the provision of interchangeable wheels, front to back. Others chose an Octopus rear hub because it somehow instils in them that eight fixings are better. High powered cars get away with only five M12 fine fixings on a much, much smaller PCD & have something like ten times the torque available to us.
Others have a powerful engine, uprated brakes, sticky tyres with sport suspension & then, they fit a box exhaust. Jeez! We grounded ours in the 70's with the only tyres available which @ best were dire!