With our new Wide Tires Kit incl. Tüv 2012 up widening of the original rim on 10.5 is possible. Besides, the original wing is widened, so that the 300th tyre has enough place. Optionally in addition you can order our new rear fender Flat 300 in addition. In the picture you can see original 240 Hinterreifen in comparison to our 10.5 inches of rim. So that our wide tyre Kit also runs absolutely concentric, the following parts must be sent to us: Original rim must be sent with an order with (it is widened on 10.5 inches) original back wheel wing must be sent with an order with (it is widened for 10.5 inches of rim), Moreover, are included in Kit: – All sockets required to the assembly and distances (space) – Brake and rear Pulley from the full aluminium milled – front pawning Pulley, Bearing support kit, detailed installation assembly instructions – safety standards authority Certificate for rim and wing incl. Tyre release The rim is delivered uncoated one. If requested the rim can be coated. Please, with order ask for!