TRAMPA's 5 Spoke PHATLADS hubs are DEEP-DISH, OFF-SET & the latest addition to TRAMPA’s amazing range of wheels. Injection molded using premium Dupont plastic composites, PHATLADS Hubs utilize a special split-rim design that can fit any 6, 7, 8 & even 10” tyre that TRAMPA offers – One hub to fit them all will transform your ride experience for sure! The PHATLADS hubs are known as ‘DEEP DISH’ due to the Angle of the spokes on the fatter part allowing an 'offset bearing position'. Off setting the Bearing position extends the wheelbase & widens the ground contact of any tyres fitted to them. Weighing just 226g, TRAMPA's PHATLADS are the lightest choice of hub for 9” & 10” Tyres. There are two sets of Bolt holes on the PHATLADS Hub, these are in an Inner & Outer position. The Outer set of holes are for the assembly of the Hub & require the M4 nuts being inserted into the housing on the inner section of the hub. Once the 2 parts are mated together the bolt should be threaded through from the fatter side of the hub tightening into then nut with a T20 TORX Key. This M4 nut is submerged & the bolt should not sit proud of the surface of its housing. The Inner bolt holes of the PHATLADS hubs match the same screw pattern as any of the TRAMPA Slave pulleys suiting the 62 Tooth with 6 inch tyres, 66 tooth with 8 inch Tyres & 76 Tooth for 9 Inch tyres