Has anyone tried using the Blunt SS 29er rim with gravel-width tires (40c)? I use these rims on my MTB, and they're very durable for the weight. I'm just not sure if they'd be too wide for a 40c tire, expecially for tubeless applications.
The_Mickstar wrote:Has anyone tried using the Blunt SS 29er rim with gravel-width tires (40c)? I use these rims on my MTB, and they're very durable for the weight. I'm just not sure if they'd be too wide for a 40c tire, expecially for tubeless applications.
I'd have zero qualms about running a 40c. With a 30mm rim, my opinion is the sweet spot is 37c+. I wouldn't try it setup tubeless with a non-tubeless tire, as the rim has pretty tight sizing tolerances, but with a good quality tubeless tire I don't foresee any issues.
Yup, I tried it: WTB Nano 40 on the Blunt SS. I had them pop off the rim in corners and burp repeatedly. Despite hurting myself pretty badly, I kept running them because I wanted it to work, It was super fast and felt awesome. I'm back to tubes now but I have just hit send on some ultra light weight tubes. I WOULD NOT RECOMMEND TRYING THEM TUBELESS WITH 40c TIRES. After trying the experiment I would agree with manufactures recommendation that says- right on the tire: to not run tubeless on rims wider than 26
For the last two days Guitar Ted's blog has excellent information on tubeless tire and rim compatibility. It's a must read for those contemplating tubeless. http://g-tedproductions.blogspot.com/
Update - The old GK 40's mentioned above were re-labeled 43's by Panaracer, so keep that in mind. I have put well over 2000 miles on the GK43/Blunt SS tubeless combo with absolutely no problems.
The sidewall depth (G height) of the Blunt SS is too shallow. I had two different tubeless ready tires (38 and 43mm) blow off at less than 25psi while mounting. Same tires are fine on WTB and DT Swiss rims.
