Can you put road bike rims on a mountain bike?

Answer 1

Yes, but not without consequences. The front wheel will probably fit, but the brakes won't reach the rim and it's likely that the tire will get squeezed by the fork. A modern rear MTB hub is 135 mm wide, while a modern road hub is 130 mm, so there's your first problem. Then you'll also have the same issues with brakes not reaching and tire clearance as you had for the front. Bikes with disc brakes can sometimes take different wheel sizes w/o any further issues, but keep in mind that pedal clearence will change.

Answer 2

Depends.

Most road bike wheels are the 700C / 622 mm ETRTO / 28" standard, while most MTB wheels are the 559 mm ETRTO / 26" standard, so they wouldn't fit.

But there are decent road tires in the 26" size as well.

But the 29er MTBs use the same 700C / 622 mm ETRTO / 28" standard as most road bikes, so a road tire would fit those, after a fashion.

Keep in mind that there's width too, and a 29er MTB rim may be too wide to work well with a real narrow road tire.

Answer 3

Not unless you have them custom made. Most MTBs have 26" wheels, and that's a lot bigger than the wheel size training wheels are made for. On top of that, a person big enough to ride a 26" bike is likely a lot heavier than what regular training wheels are made for.

But even more important, training wheels aren't much good for learning to bicycle. Kids tend to treat the bike as if it's a trike, and don't even try to balance as long as the training wheels are on.

For learning to bike, a better option is to remove the pedals(left unscrew counter-clockwise), set the saddle height so that the rider can have both feet on the ground simultaneously, then have the rider shove himself forward by the feet. When the rider has a bit of speed, the rider can try to coast simply by holding the feet up.

Once the rider can balance himself while coasting, put the pedals back on and have a go. Most kids transition from kicking to pedalling within minutes.

If it's an adult who's having balance troubles, get a proper adult tricycle instead.

Answer 4

Depends.

Most road bike rims and hybrid bike rims (and29er MTB rims) share the same Bead Seat Diameter, the 700C / 622 mm ETRTO / 28" size - so the tire is likely to be possible to mount anyhow.

But there's width to consider too A hybrid tire can be twice the width of a road tire which can cause it to rub against the fork crown, brake bridge or chain stays, or be too wide to run safely on a narrow road rim.

I'll post a link for rim width vs tire width recommendations, but frame /fork clearance you'll have to judge by yourself.

Answer 5

No. BMX wheel size is 20" while most common MTB wheel size is 26". The MTB wheels just won't fit. Drop out width is different too.

Answer 6

Well the axel for a road bike is not as wide as th MTB-s is,so you can't put often a road bike rim in an MTB,but it would be useless anyway!