Pump tracks and skateparks are bang on for keeping your fitness and skills up during the shorter days. If you're lucky enough to live near a pump track, you've probably already realised how much fun they are, without committing to getting soaked and covered in mud.

This frame is made to be responsive, made from Series 3 6061 Aluminium with beefy double butted aluminium tubing and a tapered headtube. The Alcatraz has short chain stays with the DJ standard 135×10 horizontal drop-outs. Two sizes are available.

An awesome base for your jump bike build!

• 135×10mm horizontal dropouts.
• 6061 Series 3 aluminium frame.
• Tapered headtube.
• Slotted IS disc brake tabs.
• 73 mm threaded BB with ISCG05 tabs.
• 30.9 seat tube.