Rear Axle Type: 10x1
 

I see a lot of wheel with is info on them Rear Axle Type: 10x1 and I see a lot of these too Rear Axle Type: 9x1 witch wheel axle is better both can use a 9 speed rear cassette.With Shimano Deore XT M770 Mavic A719 I understand what this part is all about.But am so lost with the axle part so what is better 10x1 or the 9x1.I would think the 10x1 would be.Any info on this matter will help out a lot.Thanks:thumb:

all qr rear axle are 10mm at the drop outs. fronts are 9mm

This is correct info. Any one advertising a 9x1 as a rear axle is wrong.

Hate to nitpick, but be careful about generalizations.

A number of Taiwan made hubs used a 9.5mm QR rear axle in the past. They might have gone to 10mm by now, but I don't know. Also not all 10mm axles have the same thread. Most are 10x1, but for example, Campagnolo used 10x26 for decades.

As far as the OP is concerned, larger is better, but is isn't a matter of choice. The hub manufacturers specs the axle and replacements must match.

true but these days pretty much every Taiwan rear hub is 10x1.

Re : generalizations,
I have a solid 9x1 in my UK made Sturmey Archer screw on [6~7 speed]
freewheel drum brake hubs.. rear and front

I had 15mm front and 20mm rear axle on an utility bike (called "ukraina" - developed by russian, built like tanks, heavy) - "torpedo" rear brake, single speed, no front brake, 4mm spokes on steel rims...

OK, but reptilezs qualified his generalization by specifying qr (i.e. hollow) axles.

Note to Asi: the next time anyone in the US sees a "Ukrania" bike here it will be the first time. :)