Stan's NoTubes Crest Mk4 Rim - Black - 32 Hole - 29 Inch Dangerous Goods The breathable mesh back panel

The breathable mesh back panel helps keep you cool

5mm using 4 spacers (included)

but not so far as to engage the full side knobs

If you are looking to build a new wheelset and have not ridden wider rims

Stan's NoTubes Crest Mk4 Rim - Black - 32 Hole - 29 Inch Dangerous Goods The breathable mesh back panelCrest rims are part of the history of mountain biking. Introduced in 2005, the Crest's design evolved directly from Stan's earliest ideas, including the legendary 355 rims. Stan wanted a simple and durable rim that would work well without a tube and weighed less than everybody else's rims. The Crest achieved those goals. With a more durable and lighter 6069 alloy and an asymmetric rim shape that balances spoke tension, today's Crest MK4 has technology