Tyre sizing (+/- sizing?)
Discussion
My sturdy old Trek (FX 7.3 Disc/Hybrid) has been running on 700x32 since it was bought 4 years back, time for another tyre change, and trying to understand the potential width reduction from the most excellent Sheldon brown site.
Would I be right in thinking that the thinnest I can reliably go down to would be 700x28, with 700x25 being marginal?
Would I be right in thinking that the thinnest I can reliably go down to would be 700x28, with 700x25 being marginal?
OneDs said:
Did you also see the caveat atthe bottom of the table
I did see that, but I err even further on the side of caution!sheldon brown's said:
Note: This chart may err a bit on the side of caution. Many cyclists exceed the recommended widths with no problem.
See what see rim size you have if it is 17mm you should be ok down to 23.I did have a look on the Trek archives for the rim size, but they're information is pretty basic, little more than purely the supplied tyre size.
My riding has changed - used to be purely for the commute, but now I'm looking at more distance work, and the selection of 700x32 tyres is quite dire, all the interesting ones are in the narrower sizes.
Send an email to Trek/Bontrager and ask them for the specific rim width then go with one lower than Sheldon's site recommends and max psi to improve rolling resistance, if it is a bit too harsh, get some better/softer/more cushioned grips and a better fitting saddle. Still to harsh reduce the psi a little.
OneDs said:
Send an email to Trek/Bontrager and ask them for the specific rim width then go with one lower than Sheldon's site recommends and max psi to improve rolling resistance, if it is a bit too harsh, get some better/softer/more cushioned grips and a better fitting saddle. Still to harsh reduce the psi a little.
Why did I not think of mailing them??? Its so obvious, will do!Gassing Station | Pedal Powered | Top of Page | What's New | My Stuff