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I've been after a new back wheel or maybe new set for a while. I have a 2016 Longitude. With a 2.8" tire at the back chain clearance is there but not by much! I was about to buy a set of Rumpus rims from Alpkit because they're pretty cheap at the moment but I notice they are 45mm - current rims are 38mm. What effect will it have on tires/performance by increasing external rim diameter from 38 to 45?
Wider inner width spreads the tire's beads, making for a tire that folds over less at low pressures while corning hard, and resists bottoming better during hard impacts. I've run 2.3~3.0 tyres on Scraper i45 and like it. Pressure around 12psi. I'm 85kg in kit .
Thanks for getting back to me. So basically running a wider rim isn't going to make the tire any 'fatter'?
Wtb provided me tyre widths of their tyres on 35mm and 40mm rims. The width did increase on the larger rim so be careful if you’re switching to wider rims and tight in clearance.
Just found the email- their ranger tyres grows from 2.75 to 2.8” 35mm>40mm internal width.
i wish they’d stick to metric throughout!
Installing a rim with a wider OD will make the tyre 'fatter'. If you are tight at the back already I'd be careful of mud clearance.
Hmmm thanks! Another option is buying Hope tech 35W which has a 40mm external diameter. Not sure if the 38mm is the external or internal. For the hope its internal with 40mm being external. Not sure if a few mil will count either way....
Only count by how much clearance you have. Tyres come up different too. The side knobs on say a Magic Mary/Dirty Dan are huge say compared to a WTB Breakout etc. So tyre choice also influences.