Rim Tubeless SIP for Vespa 50 S/SR/Sprinter/Revival/90/100 1° also for Vespa 50 N/L/R ->V5A1T 752188 als Umrüstfelge 9" auf 10" 2.15 10" closed aluminium polished 4-hole
Innovation in style, technology and safety. We now have our SIP tubeless wheel rims available for the 9” wheeled 50cc Vespa models produced in the usual excellent quality. The one-piece SIP aluminium wheel has a 10” outer diameter, similar to the original pressed steel-plate wheels fitted to the S, SR, Sprinter and Revival Vespa 50cc models.
This enables the use of the more popularly established range of 10” tyres on these vintage Vespa models. The one-piece design of our SIP aluminium wheels provides a noticeably improved ride due to the precise production methods involved in their manufacture. The suspension also becomes more stable, thanks to the larger 10” outer diameter. The fitting of a 10” tyre to these 9” wheeled models also raises the overall transmission gear ratio of the engine, equal to the other 50cc Vespa models originally factory fitted with 3.00-10” wheels. The greater circumference of the 10” tyres raises the overall ratio by about 8% over the 9” tyre type. This enables a lower-revving engine combined with a higher maximum speed, ideal for mildly tuned motors, but also beneficial for scooters fitted with original motors with enough power to still master accelerating up hills and gradients.
The modern double-hump design of the wheel helps prevent sudden loss of pressure while riding in case of the tyre being damaged. The air escapes slowly enough to enable the rider to safely bring their Vespa to a halt. Dangerous blow-outs at high speed become, thankfully, a thing of the past! Other potentially hazardous occurrences, such as a valve ripping the inner tube open or it being trapped between the wheel halves during assembly are also no longer possible. The valve is pre-mounted to the wheel itself. The surface finish is perfected by an extensive CNC machining process. They are available painted in various colours, a highly polished version and one type painted with polished flanks.