WPS Trek Trunnion Adapter for shocks with standard eyelet

With the WPS Trek Trunnion Adapter, you can install a different shock in a Trek frame designed for a trunnion mount shock like the RockShox Deluxe Thru Shaft. You do not need a new bolt kit from Trek or any new mounting hardware.

How it works

The adapter sits in the eyelet of the new shock. It fits an eyelet with a 15.08 mm (19/32 inch) diameter, which is standard for most modern shocks, and features an M10 thread at both ends. This allows you to continue using your existing trunnion bolts. There is a 6 mm hex socket in the centre of the shaft: this allows you to hold the shaft in place while loosening the second bolt.

Scope of delivery

• 1 stainless steel shaft
• 2 carbon fibre reinforced nylon spacers
• 2 seals
• 1 IGUS bushing for the shock eyelet

Variants

• 54 mm
• 50 mm with 10 mm offset
• 40 mm

The width you need can be found in your frame's specifications. Also, please check that the eye-to-eye length and stroke of the new shock are compatible with your frame. Not sure? Write to us with your frame model and year.

Read more about the brand on the WPS brand page. Questions about which one to choose? Write to us – including your model, year, and, if possible, the serial number of your suspension component.