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Hi there, I have a Winora Radius ebike, 20" wheels. My stock seat post is 450mm long at 31.6mn. I want to raise the seat height by 100mm minimum to 150mm maximum above the minimum insertion line. I've looked everywhere but the longest (other than Brompton 550/600mm & telescopic) I can find...

Hi there guys, My ebike has M10 solid axle in both front and rear and I can't find a new hub for front! Very confusing. I've found m9 quick release hubs and 12mm, 15mm, 20mm solid axles. OLD spacing on my fork is 100mm. Any advice and suggestions of what to get would be appreciated. I'm...

I'm considering building a rear wheel with 8 speed cassette for my ebike. It's a Winora Radius plain, disc brakes, i3 hub gears (which are shot), 20" wheels with Schwalbe Big Ben 2.15"/55mm tyres. Will the following parts fit together...

Which do you use and why? Would you change if you could?

Hi there everyone! I bought a ex demo ebike couple of months back: Winora Radius plain, 20" wheels (scwalbe big Ben 55mm/2.15 inches) crotched rims, Tektro Auriga hydraulic brakes 160mm, SRAM i3 hub gears 32 holes, Yamaha PW motor, 400Wh battery. 52 tooth front, 15 tooth back. 1st gear broke...