I bought a Trek Farley 7 that came with Mulefut rims. Trek in it's infinite wisdom declined to use the correct Mulefut rim strips. I assumed the ones Trek used would work. After riding the bike for a month I decided to get rid of the tubes. I was actually able to convert the front wheel, but the back was a miserable failure. I retaped it twice, but the rim strip did not seem to have the integrity to hold the tape in place. I think the rear strip was more degraded because of having more weight on the rear wheel when riding around for a month.
Once I got the correct one from Hayes the rear came out beautifully and holds air like a champ. The strip is pretty challenging to get over the rim and is very tight once in place. But it has a smooth inner surface and is stronger than the one Trek includes. The tape job came out much cleaner and the wheel held full pressure with no sealant. Bottom line if you get a bike that comes with Mulefut rims but does not have the Sun Ringle strip, get the Strip before proceeding. I will eventually retape my front wheel with the correct strip but for now will ride it since it's holding and shows no signs of leakage.
The strips fit my mulefoot rims perfectly when running tubes. If converting the 80mm mulefoot to tubeless, these are not the best option because the mulefoot rims don't have enough area for the tape to stick reliably.. Hayes shipped them quickly.
Used these strips to convert the wheels that came on my Trek Farley 5 to tubeless.
Rim strips installed easily over the beads which can be a problem with some brands/sizes. However the fit is a little loose around the wheel.
This loose fit means you need to pay extra attention when installing the tubeless tape, as the tape wants to crease as it folds down with the extra strip material.
Paying careful attention to the outside edges I got the tape to seal good and the tires inflated and hold good pressure tubeless.