29”
- actually has more tyre on the ground because of diameter... so you should corner at high speed better, climb better and even brake more effectively
- higher Unsprung weight(bigger wheel and tyre) so acceleration is worse on two counts... this and the larger diameter
- will be less likely to get hooked up on things as the diameter sees the tyre roll over things that a smaller tyre might get hooked upon
- the modern 29ers now have their frame geometry sorted... early ones were trucks
- slower to move around in the air when jumping... that might be a good or bad thing depending where you are with your jumping skills
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