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30 votes
5 answers
17k views

Explaining the effects of frame geometries

I asked about buying a bike here, and someone asked on my behalf about test-riding a bike before buying. My question is, what should I know, or should have known, about the sizing or 'geometry' of a ...
ChrisW's user avatar
  • 12.1k
10 votes
4 answers
31k views

How can I tell if the size of a bike is right for me?

Today I disassembled my current fixed-gear, and reassembled all the parts in another frame, which I am considering to purchase. The current owner of the frame warned me that it might be too big for ...
heltonbiker's user avatar
28 votes
5 answers
123k views

Should my foot be able to step flat on the ground, when I sit on a bike seat?

I was wondering, for a correctly sized mountain bike, or hybrid, should I be able to place my foot flat on the ground, when I sit on the bike seat?
Cheok Yan Cheng's user avatar
9 votes
2 answers
169k views

Frame sizing: "medium" vs. inches vs. centimeters

How in the world does 17-18 inches match up to 53-54 cm?? I was looking up bicycle sizing charts and found the ones on the Evans website interesting, if somewhat confusing. For example, see the ...
mark's user avatar
  • 357
17 votes
12 answers
128k views

What are the advantages and disadvantages of riding a smaller Mountain Bike frame?

I am 182cm (5' 11'') tall and am looking into buying a new frame for my mountain bike. Right now i have a 19'' frame and i found a good deal on a 17'' frame. The guy from the shop told me that it ...
Gabriel Solomon's user avatar
4 votes
2 answers
10k views

Is my bike too big for me?

I recently bought a bike online for use in college and after trying to get on the bike, and I think it's too big. The problem is that I'm pretty small. Like 4'11", 27" inseam small. Little legs, yes. ...
Asolares's user avatar
3 votes
4 answers
867 views

Short inside leg body: smaller frame?

I have a bit of a disproportionate body. I am 176cm (5'9") tall, but my inside leg height is only 76cm (2'6"). I want to build a fixed-gear bike and I am looking for a frame of the right size for me. ...
Alessandro Cosentino's user avatar
2 votes
1 answer
3k views

What fork size is 32mm (inside diameter on the frame) considered?

Good day, I'm new to the whole bike building process, but I've finally decided to make the step and build a semi-nice bike. I've bought a really nice aluminium frame 2nd hand, but its sizing has me ...
hilchev's user avatar
  • 143