Originally Posted by vwduud

Are you adding bladders to your .4 shocks? I ask this for a specific reason.

The new multi-function cap, that comes with the .4, allows us to run emulsion, vented bladder and sealed bladder builds.

However, the inside of the .4 cap is different than the .3 and down caps. The .3 cap has an extra "pocket" milled into it, allowing the shock shaft to travel up farther before the top of the shock shaft (or nut) pinches the bladder.

If you inspect your bladders, are the punctures shaped like an oval, near the middle of the bladder? If so, that oval is from the bleeder hole on the underside of the .4 cap. Without this extra milled pocket of the .3 cap, the shock shaft will pinch the bladder on the underside of the cap, cutting it, typically at the bleeder hole.

There are a couple of solutions:

1.) Use the .3 caps for bladder builds
2.) Shorten the up travel of your shocks by screwing the shock end on further
3.) Use the original .3 shock cartridge set (TKR6146)

For #3, just before the .4 came out, Tekno released a revised shock cartridge set: TKR6146B. The main difference is the lower bushing is shorter allowing for more up travel. This new cartridge set is standard in the .4, giving additional up travel.