Our BASE series is about high performance, bullet-proof durability and simplicity. The singlespeed hub is ideal for your park/dirt jump/slopestyle or fixie style bike. It s built for riders looking for more riding time and less maintenance. With 4 Industrial bearings and a 13T cog as standard, (9T - 10T - 11T - 12T freewheel with cog also available), it is purpose built to create a durable setup that can spin for a long time. Features - 135/10 mm - Number of holes: 32 - The sprocket of the hub on the freewheel is permanently installed. - 25 points of engagement. - 13 T cog (Optionally you can buy 9T / 10T / 11T and 12T freewheel including cog) - Weight: 358g (+/- 5% weight tolerance) - Material: Aluminum Extras - 4 sealed bearings - 6 pawls