2.8 tyres on 45mm rims

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This topic has 12 replies, 11 voices, and was last updated 7 years ago by widge34.

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2.8 tyres on 45mm rims
widge34
Free Member

Will 2.8″ tyres mount ok on 45mm rims, or will it make the tyre profile too square?

Posted 7 years ago

boxelder
Full Member

Depends on the tyre. 2.8 Nobby Nic fine on Dually 45mm for me, but WTB Trailblazer ends up square and exposed at the sidewall. For 2.8″ tyres, I’d go narrower for the rear.

Posted 7 years ago

rOcKeTdOg
Full Member

2.8 nobby nic & rekon fit fine on mine

Posted 7 years ago

sillyoldman
Full Member

Duallys are only 39mm wide.

Posted 7 years ago

scotroutes
Full Member

It would help if rim widths were always measured on the inside 🙂

2.8 Trailblazers were the first of the B+ tyres and they were launched along with the Scraper i45 rim.

Posted 7 years ago

widge34
Free Member

My rims are Scraper i45’s

Posted 7 years ago

akira
Full Member

Trailblazers are about the same size as a big 2.4 tyre so I’d avoid those.

Posted 7 years ago

BadlyWiredDog
Full Member

Trailblazers are about the same size as a big 2.4 tyre so I’d avoid those.

Similar width but taller? I’d avoid them for their lack of edge grip and laughable fragility. WTB Rangers are similar size and quick plus robust in TCS Tough guise, but actually have some grip. Ditto the 2.8 Rekon+.

Posted 7 years ago

10pmix
Free Member

2.8 Nobby Nics on a 45mm internal/ 50mm external carbon rim.

Posted 7 years ago

Brake-neck
Free Member

Running Rekon+ 2.8 on Scraper i45’s, really like the profile, gives it a bit of edge to dig in once the ridiculous amount of grip eventually lets go 🙂

Posted 7 years ago

paton
Free Member

Some thoughts about tyres and rims here.
Wider rim = better.

http://www.pinkbike.com/news/Tech-Tuesday–Wider-Rims-Are-Better-and-Why-Tubeless-Tires-Burp-.html

Posted 7 years ago

MostlyBalanced
Free Member

I’m not sure what all this talk of “too square” is all about. I’ve been running 2.4s on Surly Rabbitholes (45mm internal) for a beautifully smooth and grippy ride with minimal drag and excellent stability. Limited mud clearances mean the 3.0s are summer only.

I can’t think of any other vehicle that runs wheels with the tyres pinched in to such narrower rims as a traditional XC bike. Motorbikes don’t, not even wheelbarrows.

Posted 7 years ago

widge34
Free Member

Cheers Guys. Now just need to wait for the 2.8 Minions to be available

Posted 7 years ago