Skip to Navigation Skip to Content



Show shops within miles of

Re: Wheel size

10 November, 2008 05:15PM
It's 700c!

Bike wheel sizes are measured in different ways, depending upon the type of bike.

For example, a 26" mountain bike wheel has a 26" diameter rim.

Yours i a hybrid, and as such, like many other road going bikes (like race bikes) has a 700c wheel. But 700c isn;t actually a measurement in it's own right.

700c is the modern equivalent to the old imperial 27" wheel, although slightly smaller.

The 700 x 38c bnreaks down as:

Diameter: 700c (so pretty much any 700c tyre will fit)
Tyre width: 38 (the width is generally expressed in mm) so a 700 x 38 has a nominal width of 38mm BUT this depends upon the rim width.

Hybrids are typically fitted with 28mm or wider tyres. Racing bikes are typically fitted with 25mm or narrower.

The old 27 x 1 1/4" is an old imperial size common in britain until the early eighties when we switched to the european 700c size favoure on the continent. 27 x 1 1/4", whilst not found on any new bikes, is making a resurgence apparently as more and more people dig their old racers out of the shed to ride to work!
Subject Author Posted

Wheel size

hlwood 10 November, 2008 04:54PM

Re: Wheel size

siwatts 10 November, 2008 05:15PM

Re: Wheel size

hlwood 11 November, 2008 07:40PM

Re: Wheel size

DocB 11 November, 2008 08:34PM

Re: Wheel size

Northern Monkey 22 September, 2010 01:51PM

Re: Wheel size

cotterpin 22 September, 2010 08:14PM

Re: Wheel size

Leanne 12 February, 2013 08:22AM

Re: Wheel size

siwatts 12 February, 2013 03:11PM

Re: Wheel size

Kevin Chestney 09 September, 2013 05:19PM

Re: Wheel size

siwatts 09 January, 2014 04:56PM

700×38c wheels

Paul Allan 04 March, 2018 01:42PM

Re: Wheel size

Cotterpin 11 November, 2008 07:27PM


Your Email:


Sitemap | Privacy Policy | Terms & Conditions
WhyCycle and all content is ©Copyright SiWIS 2001-2014 except where stated.