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Measurements

The perfect size and fit ensures optimum comfort and power output when riding, whether you are commuting daily, cycling on a sunny Sunday afternoon in the countryside, racing or touring around the world.

The perfect size, perfect fit

We believe that a bike should fit you perfectly. That's why we offer a range of sizes and custom options to ensure your Mercian is tailored to your exact requirements.

There are four options when it comes to sizing your bike:

1
Customers visiting our Derby workshop can be measured on a specially designed jig, where skill, time and experience ensure a correct frame size and design – tailored to match your needs.
2
If a visit to us is inconvenient, we can build the right size frame by using a few key measurements – overall height without shoes and inside leg measurement will allow us to build you a frame with the right seat tube height and top tube length (or alternatively we can use data from a third party bike fit).
Built for the long ride

Measurements

3
Or, if you are happy with our standard sizes, you can also choose your frame size from the following table:
Frame size Seat tube
XX-Small 50cm
X-Small 52cm
Small 54cm
Medium 56cm
Large 58cm
X-Large 60cm
XX-Large 62cm

4
If you have a bike you love to ride we can copy the geometry - fill in the form below.

If you have a bike you love but you want some newer componentry, or to replace a frame that has had to be retired, we can copy the geometry to your new Mercian.

With some key measurements and a side view photo we can recreate the existing frame geometry using the Bike CAD software.

Bike Measurements

Mercian Cycles

Create your unique Mercian

Handcrafted with precision and passion, each Mercian bike is a testament to our dedication to quality and craftsmanship.

Start your journey
Est. 1946 | London Road, Derby