Hi guys

[Werner97]

I have a Merida tfs 100 ,will a 27.5 inch or 29 inch wheel fit on it or is it better jyst to buy a new bike

[Eugene]

I know that some of Merida's 26 inch frames did fit 27.5 wheels. Not sure if this is one of them. 

They certainly won't fit 29 inch wheels. 

[Mountain Bru]

Hi

[Ispeed_V]

The Merida's have the cross bar between the two rear stays (just above the rear wheel). As Eugene said, you could get by with a 27.5" inch tyre but it would be a very tight fit. Any grit/mud that gets on the tyre will more than likely scrape against the cross bar.

The other thing you also have to consider is the compatibility of the front fork to run a bigger tyre.

[Mamil]

I hereby recommend the delightful experience of a new bike day. 

Ps. 

There's no day like tadej

[100Tours]

You have (maybe) 2 options. You can most likely get a 650b wheel to fit with a 2.1" tyre width. I managed to squeeze a 650b 2.4" tyre into my Ragley 26er frame, and I know another chap who has done this with a Cotic. The ride quality was awesone on both these bikes, but there is absolutely zero mud clearance if you're riding in muddy places. No guarantee it will work, but the end product is very rideable if it does - and I'd say a step up on riding the frame as a 26er.

You can probably get a 29er or 700c wheel in there (they are the same) if you go with gravel tyres (even more likely to work - this will end up being smaller than a 650b wheel). Then you can think about going for a monstercross type bike.

Be warned though, if you're going to do anything more than just change the wheelset you will run into compatibility issues, and this might get expensive.

Edit - Looks like it has been done before too.. This looks like a 26 frame with 27.5 wheels. Merida Matts TFS 100 MTB | Bike Hub

Edited July 6, 2021 by 100Tours