All Questions
26
questions
13
votes
2
answers
3k
views
Rear wheels are dished. Why not "dish" the frame instead?
Most rear wheels are dished to make room for the cassette. They have the drive side spokes comming into the hub more perpendicularly, which weakens the wheel against lateral forces in that direction. ...
- 2,069
13
votes
1
answer
2k
views
Front tire and downtube are extremely close
I bought a brand new Oolter Torm S
The distance between the front wheel and the frame looks normal. However the bike that I got looks like this:
I did buy a bike that is slightly too small (...
- 1,468
3
votes
2
answers
2k
views
What type of bikes have a steel frame with 135mm rear dropouts spacing?
I'm looking for a bike frame made of steel with a 135mm rear dropouts spacing. The reason is that I might have to cold set at ~ 138mm for a project.
It could be a road bike, a mountain bike, or a ...
- 587
6
votes
2
answers
2k
views
Rear wheel centered at seatstays but offset at chanstays
Built up a new bike. All components are new and unused.
As title suggests, rear wheel sits right in the middle of two seatstays (checked with ruler and vernier caliper) but is off by ~3mm at ...
- 2,857
3
votes
1
answer
3k
views
Why is this rear wheel not aligned with the frame?
My LBS sold me a new wheel. I put on the new wheel. I'd go back to the LBS, but I'm afraid that I live far away from them. Alas, I'm now having this problem:
As you can see, the wheel is quite not ...
- 1,445
12
votes
7
answers
3k
views
What are the most basic parts of a bicycle which cannot be upgraded over a period of time?
After reading this question: Cheap MTB with future upgrades v/s costly fully ready MTB, I myself had a question.
What are the most fundamental parts of a bicycle? What are the things which we have to ...
- 393
1
vote
2
answers
2k
views
I have an 8-speed GT Aggressor Pro and I want to upgrade it to have 12 rear cogs
I found a really cheap 12-speed SRAM groupset, and I want to know if I can just get a new rear wheel or if I need a new frame.
2
votes
1
answer
302
views
How do the wheels attach on this trike design?
How do the wheels attach on this trike design?
Here are the design drawings. If you go to the section titled Steering Bridge Components you can see were it should attach.
However it does not show ...
user39416
2
votes
1
answer
811
views
Rear wheel touch frame during off saddle sprint
bike: Cervelo S2 Photo
wheels: Mavic Cosmic Pro Carbon (wheel is true)
tyres: Continental Grand Prix 4000S II 23mm
Problem is that during off saddle sprint my rear tyre touch the frame and makes ...
- 153
3
votes
2
answers
424
views
What to do with the new parts on an old bike I want to dump?
Three years ago I bought a second hand bike, which I used for cycling on average 10 miles a day (mostly commuting). It turned out to have many problems, so over time I replaced many of the parts on it ...
- 335
3
votes
4
answers
2k
views
Are two different tires marked with the same dimensions (700 x 25c) the same size?
Both sets of tires are from different reputable manufactures but the details are the same. ie Clinchers folding etc.
I recently changed my tires on a road bike, the clearance on top section of the ...
- 1,290
3
votes
1
answer
2k
views
650b for small rider?
I'm considering getting a bike for my friend; she is interested in riding road/gravel with me, doesn't own a bike of her own, and doesn't know too much about what's available.
She is about 5 feet ...
- 5,518
1
vote
1
answer
61k
views
Converting frame size to wheel size
I've been trying to determine what size road or mountain bike I should purchase. All the charts I've found suggest what frame size I should have, but online shopping only lists wheel sizes. How do I ...
- 113
2
votes
2
answers
392
views
Can't figure out the correct wheelset size for my Raleigh Rush Hour to replace the stock wheelset
I'm trying to order a new wheelset for my Raleigh Rush Hour. The problem being that my bike is at a friends right now and it might stay there for a bit, I can't remember what frame size I have and I ...
- 21
3
votes
1
answer
3k
views
Rear disc calliper won't fit, disc mount bent?
I am upgrading my MTB to disc brakes.
I have disc compatible wheels and a set of Shimano M446 Postmount callipers and 160mm rotors.
Front fork is a Manitou who decided to jump on the Postmount wagon ...
- 705
1
vote
1
answer
787
views
Who has information on this Fondriest Bike we found? Any good?
Does anyone here know anything about this old Fondriest bike?
- 11
9
votes
3
answers
21k
views
26" vs 28" wheels for touring
I was told by a friend that 26" wheels are better than 28" wheels for touring. Is this true? What are the pro's and con's?
I'm told that 26" wheels are stronger for their spoke count. What are the ...
- 601
1
vote
2
answers
1k
views
How to build a fixie bike? [closed]
I’m thinking about building a fixie and was wondering what are the best types of frame, wheels etc to use and how long the whole building process may take?
- 13
1
vote
1
answer
6k
views
What is the frame called that fits 700c wheels?
I have a set of 700c wheels and am looking to buy a used frame.
I want a frame that fits the 700c tires so I don't have to file down the front dropouts or use long reach brakes.
What are the frames ...
- 123
-1
votes
2
answers
1k
views
What is the right (best) bike for me? [closed]
RE: Disabled Vet, out of condition and trying to buy a bike
I started biking back in 1985 and have been out of biking almost 20 years. I was fairly savvy on the equipment of the day. It's changed ...
4
votes
1
answer
11k
views
How to calculate bike stand-over height using frameset geometry and wheel radius?
While it's best to buy through fitting a bike in store, it's not always possible (discussed here).
On some websites, the stand-over height of a bike may not be listed as part of the specifications.
...
- 1,585
2
votes
2
answers
12k
views
Rear tire has started rubbing frame at one spot
Riding my bike within my suburban residential neighborhood, I felt a shock, like a snap although I don't think anything snapped, followed by a rubbing noise every few seconds. Pedaling and the brakes ...
- 125
15
votes
4
answers
21k
views
Why offset the rear rim to the hub and not the hub in the frame?
I'm currently reading The Bicycle Wheel by Jobst Brandt, and I'm reading all of the issues with offsetting the rear rim toward the drive side of the hub...
Asymmetry in a rear wheel built for a ...
- 3,963
3
votes
2
answers
2k
views
Why does a bike frame have to be above 56 cm usually to fit 700c tires?
I first came across this when I was looking at the Surly LHT, but I started to see it everywhere. It seems to me they can just put on a longer fork or something, or is it more for the back wheel?
- 2,415
3
votes
1
answer
574
views
How to grease a hub?
I have a question about hub,
When should I grease my hub ? every 20000 km ?
How do I know it needs new grease ?
Because I can not see if the grease is dry or not...?
Thanks
- 919
21
votes
10
answers
35k
views
Rear wheel slipping out under load
My commuting/cyclocross bike (a Surly Crosscheck) has a problem.
If I tighten the quick release skewer to a normal level, sort of firm to close it, then if I step on the pedals hard at some point, ...
- 4,476