02 Vee. Your lowering kit is in the mail (due this week).
Size 15 in my Sidi riding boots, but the real target is fitting my size 16 Tech7's on the bike.
Was going to order my touratech lever but they are on backorder so I am stuck with the stock lever for now.
Are you going to look at a folding tip on your lever (eventually or first proto?).
Glad to help. If you can fit size 16 tech7s and handle down to a size 12/13 you should have something pretty amazing to offer.
It seems to me that a two part design with holes to allow for length adjustment is the simplest effective trick. The other issue is clearing the engine on up shifting if you attach to the splined post off the engine.
Even three parts, which folding tip, midshaft extension, and splined base section......you can sell whatever parts are the most appropriate for the rider (no folding tip, or with folding tip, longer and shorter extension kits, kits with a center piece with an angle in it, etc.) And for trail riders.....if you crash and twist it up, make the extension the part that fails....easy to carry a backup part on the bike, repair on the fly and keep riding......they should make the brake lever the same way (by the way....why doesn't anyone make brake pedals??? is it liability issues?).
Those stock linkages have so much slop in them!!! I was doing some slow hill climb (on paved goat trails) the other day in mostly 2nd gear and the linkage and slop got me in trouble a few times when I had to go to first and back....ended up in neutral a few times (when I needed torque!). Vee's in general have too large a movement from 1st to 2nd IMO, too easy to select neutral. I suspect that linkage doesn't help and with big boots you won't feel the slight click on that upshift anyway.
FYI, I am a mechanical engineer, structural reliability and simulations is my trade. Would be glad to help you out/consult....no cost for trading thoughts....home grown businesses have to be supported.
Marc from Norcal