441 posts · Joined 2007. #4 · Feb 7, 2014. I guess OK in that the wheels will fit and roll. But putting 27.5 on a bike designed around a 29er wheel is going to make the geometry of the bike way off. Highly recommend getting a 27.5 frame. Putting 29 wheels on a 27.5 bike changes the angle of the bike. The head tube angle will be higher when you add a 29er wheel, and the seat tube angle will be lower. This can affect how well you pedal. A 29-inch wheel is heavier than a 27.5-inch wheel. Because of the larger diameter, a 29-inch wheel is able to roll over obstacles easier. I've been wanting to do this for a little while now, I always love my 26" wheels and thought it shouldn't be too hard to stick them on my 27.5 Skypilot! I am out at Whistler for this video so we can try this out on some world famous trails! The frame I'm looking at is based around a 46mm offset and my current fork (180mm travel Fox 36, 27.5") has a 44mm offset according to fox website when I put the 4-digit code in, so I figured 2mm difference is pretty negligible if I can make it work, considering the prices of Forks these days (and the frame is going to cost me an arm and a leg 12 Feb 2014. #1. Has anyone tried fitting 27.5" wheels to a 26" frame. i have a Montague Paratrooper bike and it has 26" wheels. i think i have enough clearance in the frame and fork. Also does having bigger wheels equate to being speedier and secure handling [all other components being equal] - seeing that each time i turn the crank i get more A studded version is also available. 26×4.0 and 26×4.6 sizes, starting at 1350g, $120 MSRP. Vee Snow Avalanche: As you can tell by the name, the Snow Avalanche is designed for serious snow riding and can even hold its own in icy conditions thanks to embedded studs. 26×4.0 and 26×4.8 sizes, starting at 1300g and $130 MSRP. I have never tried this or heard about it being done with 2 27.5 wheels, but i know people who have put a 27.5 back wheel on a 29er and used offset bushings to regain some bb height and steepen It would be best to use 27.5 inch wheels and fork, that is what the bike is designed for. If you already have the 26 inch wheels and fork I would sell them and get 27.5 inch versions. Using 26 inch components on a 27.5 frame will cause the BB height to be lower and possible the HA to be slightly steeper. For your question on the bottom bracket A 29-inch wheel in the front offers better roll-over and traction benefits while the smaller 27.5 wheel in the back helps a rider rail around turns faster. 27.5-inch wheels can help a rider get around berms faster (Image credit: Tim Foster/Unsplash) Best hardtail mountain bikes. Best full-suspension mountain bikes. Forks and frames are designed around specific wheel sizes. There are a couple of 26/27.5 compatible frames out there, but I don't know of any 27.5/29 compatible. There are outlying cases of modding and running smaller wheels on bigger frames, but in general, it's not such a great idea. cXvH.