Originally Posted by
enock111
Here is what you need to know to buy the right wheel.
Quick release, bolt on or through axle hub.
Rim size (700c, 26, 27, etc)
Rim width (example 35mm)
Brake type (rim brake, 6 bolt disc, center lock disc)
Frame spacing (example 135mm rear, 110mm front)
Cassette or freewheel
Double or single wall
Spoke count (only important if looking for a really good match)
Spoke lacing (straight laced, single cross, double cross etc. Only important if looking for a really good match)
Color (black or silver, also only important if looking for a really good match)
Video for cassette vs. freewheel
Video for single vs. double wall
How do you measure the dropouts?
I took the following measurements
From the inside to the inside of the rear dropout is 13.5 centimeters about 5 and 3/8ths
From the middle to the middle is a little over 14.5 centimeters but just under 5 and 3/4
From the outside to the outside is just a hair over 15 centimeters or just under 6 inches
None of these measurements seem right to me. They are not measuring whole numbers of either Imperial or metric (I'm American).
This has got to be following some kind of standard. I want double wall, rim brake and I have a shimanno cassette. It's QR. I really wish I could but a bolt on though. But I don't think it will work.
If it will help, I will post a picture. It's just that I use a PC and would have to drag a camera.
EDIT: I was watching the video and I'm not sure if I have a double wall or not. My rim looks a lot more like the cut-away of the single walled rim. When I replaced a couple of spokes, the spoke did not go through 2 layers the way the double walled rim is shown in the video. So it's probably single walled.