- I assume a 29er frame needs a 29er fork not a standard one? (and obviously 29" wheels!)
- Would other components be transferrable from a 26" bike? Drive train, disc brakes stems etc?
- Would a 10 speed frame have the same width between the dropouts as a 9 speed?
- Does a 29er even out the bumps more than a 26"?
- Is it worth going full suss or would a hardtail give enough comfort?
If fitting a suspension fork, typically 490mm for 29er but I'm running a 440mm rigid fork on my Ritchey P29 as I like a low front end and nice, sharp handling.
Yes, regular 26" MTB parts will fit, but obviously need to check things like seatpost size, front mech fitting like you would with swapping parts to any frame.
Most MTB frames are 135mm OLN but there are some 142mm rear-end frames about so worth checking.
I certainly feel my Ritchey is smooth over the rough stuff - once up to speed, rolling resistance is noticeably better with tubeless tyres vs 26er with tubes. I'm running 2.4" X-Kings tubeless on P35 rims - they fly!
Full-sus? Depends on the terrain you're riding and your favoured style of riding - I'm happy fully rigid