molgrips – Member
Is there any difference between an (inexpensive) SS chainset and simply removing the inner and outer ring from a triple?
Yes. The continued function of your testicles versus their ability to glow in the dark.
Derailleur cogs are designed to allow the chain to slip easily off and onto the next cog. They have got better and better at it over the years, especially with the latest chains which are really laterally flexible.
To counter this it is essential to have perfect tension, but even that may not save the family jewels.
When you’re honking up a hill your chainstay tends to flex sideways so now you have the 2 cogs out of line.
Then two things happen.
The first is you have a situation that Shimano et al have spent millions to achieve. The chain glides neatly off the cogs.
Immediately followed by the second which is a TTTIE* with the above mentioned results.
Fit proper singlespeed cogs and chain. 🙂
*Top Tube Testicle Interface Event