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this is my first time here however I am a long time stackexchange user. I am planning to get a new MTB. Haven't ride for a long time 10y ago, as a kid I was always riding a MTB (I had an old low budget MTB and I don't want to ride it anymore).

I was considering to get this bike:
http://www.cube.eu/en/bikes/mtb-hardtail/analog/analog-29-black-grey/

As you can see it's a 29er. Basicly I wanted to get 27.5 or 26 however at every store at my country they are telling me that 29ers are the best.
Can anyone of you more experienced users tell me why should I prefer 29'' tires?

Also what can you tell me about the bike? I don't have much experience since my last ride on a mtb was about 10y ago.

This bike is 720eu at my country and I am getting it at a 20% (570eu) discount and this is as high as possible for my budget. So am i getting something worthy for the price?

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For starters, have a look here. –  Vorac Jan 20 at 11:18
1  
Other than that, the bike looks like an average entry level cross-country bike, that can serve you well in the city, tours and not too rough downhills. –  Vorac Jan 20 at 11:21
    
Well thanx Vorac.. I guess tomorrow I'll be going to buy the bike so the final decision is then. I must admit that 29ers kinda look a little stupid to me - mostly due to their size - but I don't know I guess I'll have to get used to it :) –  Spirit Jan 20 at 11:28
    
I haven't ridden such. The thread that I linked to IMHO concludes that they are just a fashion thing. The guys at the LBS are rather enthusiastic towards them. This movie also leans towards 29ers, though it compares a lower end full-suspension to a higher end 29er. –  Vorac Jan 20 at 11:30
    
They aren't necessarily better, especially for shorter people - find something that goes with the style of riding you do (you should be allowed to take it on a test ride). Also, to point out the obvious, if you're just pootling around town, you're probably better off buying a hybrid (e.g. Trek 7.2 fx) rather than a MTB - you'll get slick tires, lower weight, rigid fork, rack & fender mounts, etc. –  Batman Jan 20 at 15:56

2 Answers 2

up vote 2 down vote accepted

I recently got into mountain biking (last summer) and I had to find the answers to all these same types of questions. The answer to your question is not a simple one. You actually have to answer a few more questions before you can know which is the right size wheel for you.

First of all you won't want anything smaller than 26". You won't be able to roll over a lot of obstacles without a decent sized wheel. The benefit of the 26" wheels is that they tend to be more maneuverable, they weigh the least amount and thus roll faster, and if you are not a tall person then the 26" will be easier to find a frame that fits you right.

The 29" wheel allows you to go over more obstacles more easily. They are great if you have long legs. And they are less likely to be suddenly stopped by obstructions.

Then there are the 27.5" wheels. The brand Giant actually did a lot of research on these and have pegged them as the best compromise between the 26" and the 29". They tend to be closer to the 26" when it comes to weight and speed. But closer to the 29" when it comes to angle of attack and the ability to go over obstacles.

Last summer I started out with a 26" hybrid on the trails (yes I said hybrid, it is what I had to work with at the time). I rode with two friends that had real mountain bikes. One had a 26" and the other a 29er. Riding a hybrid definitely held me back.

But I did get a chance to ride both of their bikes and what I found is that it is essential to have a bike that is built for mountain biking when you do this. Both felt smooth as butter compared to the hybrid. Both performed well.

My friend Josh that had the 29er had an easier time going down some rock steps and over some obstacles. But Bill, the one with the 26er, was able to climb more quickly. That said, Bill is also a lighter person than Josh. So that probably added to the differences.

Overall I think the experience with both was about the same. It was really just having an actual mountain bike with strong parts and good derailleurs that mattered the most.

However I will say this, if you are going to spend a good amount of time on paved trails too then you will want to consider the lighter, faster wheels (26 or 27.5). If you are shorter or a low weight person then the large 29ers might require to much of your energy to pedal.

In the end, even though I am not that tall (5'7") I ended up with a 29er that I purchased recently. I did this because I have large strong legs and wanted to go over the obstacles more easily. I think in the end it is more preference though.

Also, Giant has invested a lot into the 27.5" bikes. So they might be worth a look since they have lots of confidence in them.

More info on that: http://www.bicycling.com/mountainbikecom/bikes-gear/giant-bets-big-275-inch-wheels

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Which begs the question: What the heck is a 27.5" wheel?? What is the ISO rim size? –  Daniel R Hicks Jan 21 at 21:26
    
There's a lot of personal preference in the size selection. I'm 6'2" and prefer a 26" wheel. :-) –  Brian Knoblauch Jan 21 at 22:51
    
@pthurmond | Thank you for your thorough explanation. I bought the Cube 29er that is in the link of my question. It's a really nice bike and I am utterly satisfied. –  Spirit Feb 2 at 11:01
    
@DanielRHicks | I've read that the 27.5'' wheels are for shorter people that want a larger wheel. Well I am kinda short 5'5'', but I haven't noticed any problems so far. I guess one must be much shorter to notice any big difference :) –  Spirit Feb 2 at 11:56

Simple answer 29er wheels roll better that 26" wheels this means better rollover and higher speeds. These are good things for mountain bikes. The trade off is, because they're a larger wheel they require a larger frame. This is especially true for suspension. Usually 29er don't have the same range of suspension as 26" wheels. The larger wheels compensate for some of this on rough ground, but that doesn't help if you're taking large drops.

So really it comes down to what kind of riding you want to do. If you want light trail use and cross-country riding the 29er is ideal. Since you're considering a hardtail I think this is you.

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