Rim Tubeless Wide Tyre SIP for 110/70-11" tyres

Innovation in style, engineering and security. The new SIP tubeless rim, successful and reliable. This rim allows you to use tires without a tube. In case of a puncture a sudden air leak will be prevented, the air pressure will decrease slowly. Blown tires will be a thing of the past. So will valve tear offs or punctures due to tubes beeing trapped between the rims during assembly. The SIP tubeless rimcombines the advantages of a classic cast rim with a high production accuracy and quality. The design is a tubeless double hump rim. This hump prevents the tire from slipping into the rim well in case of a puncture. The rim rotation is very precise. The rim is aluminium cast and CNC machined. The surface finish is perfect. The valve is included and already mounted. The rim is currently available in polished aluminium, black, black with polished edge and silver.

2.50-11: The ultimate solution for a wide tyre conversion! This revised version is now available with a smoother, more harmonious looking design. These wheels cause a slight 4mm misalignment, which allows the use of a larger tyre without having to resort to using spacer washers or longer mounting studs. The misalignment of the rear wheel can be compensated for by swing-arm mounting modification, although this is not strictly necessary as handling and ride-ability remain largely unaffected. This wheel can be mounted with a 110/70-11 sized tyre to any vintage 10” wheeled Vespa model. Additionally the 120/70-11 sized tyres can be fitted to the rear axle of the largeframe models with no clearance problems.

Aluminium rim, painted, 11x3.00 inch, tubeless

- long valves, the short ones cause problems on some old English petrol stations

- cut-out for ABUS rim lock

- reworked version for easier assembly

- no homologation, „for race use only“

SIP TIP: Keep some air stop spray in your glove box. Add a short valve if you like it more stylish.

WELLER – Iron Scooters Only, from Scooter Magazin ROLLER, Japan, 04/2020: “The high-quality aluminium tubeless wheel is a classic.”