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A single-speed bicycle is a type of bicycle with a single gear ratio. These bicycles are without derailleur gears, hub gearing or other methods for varying the gear ratio of the bicycle.

7 votes

Converting 3×7 speed into a 2(chainrings)×1(sprockect)

Without a rear derailleur one cannot switch gear on the front chainring. The length of the chain would differ between chain rings. The derailleur compensates this by running the chain a longer path th …
gschenk's user avatar
  • 9,818
2 votes

How is the Bikight aluminium chain tensioner installed?

In an image search on the web I found plenty of product pictures of these tensioners. Only one however where it is mounted to a bike: The image is mirrored, the drive side is on the right. The bike …
gschenk's user avatar
  • 9,818
2 votes
1 answer
798 views

Are sealed bearings equal to cartridge bearings in single speed hubs?

Single speed hubs are often speced with sealed bearings. In my brief market search I haven't seen any hubs with cartridge bearings in the specifications. Are sealed bearings used synonymous with cart …
gschenk's user avatar
  • 9,818
3 votes
Accepted

Brake levers for bullhorn on single speed - tt/cross or both?

It depends very much on you whether you need cross brake levers or are fine with levers at your bullhorn bars alone. Here are some questions to ask yourself: Can you break effectively and quickly wi …
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  • 9,818
3 votes

Is a 22 inch road bike appropriate for a 5'9" person?

Unfortunately it is not possible to give you a definite answer. A typical road frame of that size (56 cm) is usually too large for someone of your size (175 cm). However, the bike may not be typical …
gschenk's user avatar
  • 9,818
1 vote
1 answer
5k views

BB spindle length standard for single speed bike?

Is there a common spindle length for typical fixie/single speed bikes? Namely a bike with: a 68 mm BSA bottom bracket shell a square taper bottom bracket cartridge bearing 120 mm dropout distance sin …
gschenk's user avatar
  • 9,818
10 votes
Accepted

How do I properly torque a track cog lockring?

A torque specification is not just a torque-spanner setting but a physical property. That is, there are many ways to apply the correct torque. In this case it means more or less: pull it as tight as y …
gschenk's user avatar
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