£439.00 £263.40 Inc VAT

SALE – 40% OFF!

The Kepler is designed to take on whatever challenge is thrown at it, whether that’s thrashing along forest rails, taking it on a weekend bikepacking trip or even a full blown transcontinental tour.

Based on cyclocross geometry, the Kepler can run fatter tyres when you need them or slicks when you want to keep up with the roadies. And of course it’s fully equipped to fit front and rear panniers if you’re loading up for a longer trip. The double butted Cr-mo tubing makes for a tough yet lightweight ride, which should keep going for years to come.


Frame Specs



Tubing: Double-butted 4130 chromoly tubing
Tyre clearance: up to 700x42c (37c with fenders)
Brake compatibility: Cantilever brake studs front and rear
Headset: 1-1/8˝ threadless (not included)
Hub spacing: 132.5mm rear spacing (road or mtb)
Front derailleur clamp diameter: 28.6mm
Bottom bracket shell: 68mm ISO BB shell
Seat post diameter: 27.2mm
Seat clamp diameter: 29.8mm
Frame weight: 54cm = 2.1kg
Fork weight: Uncut = 900g

Kepler technical drawing
Size (C-TT)52cm54cm56cm58cm60cm
Seat Tube (C-C)505mm525mm545mm565mm585mm
Top Tube535mm545mm560mm570mm585mm
Head Tube95mm105mm124mm142mm162mm
Head Angle71.572727272
Seat Angle7473.57372.572.5
BB Drop66mm66mm66mm66mm66mm
Fork Length (A-C)400mm400mm400mm400mm400mm
Fork Rake45mm45mm45mm45mm45mm

Are your frames guaranteed?

Our frames and bikes are fully guaranteed against manufacturing and materials faults or defects for 12 months from date of purchase. This guarantee does not cover items which are damaged through accident, misuse, wear and tear, neglect or those which have been repaired or altered by any other firm. Paintwork is not covered covered by this warranty, nor is any damage that happens to you or your other components as a result of any failure of one of our products.

This guarantee is only valid to the original customer and is non-transferable. We reserve the right to an independent opinion on whether the goods qualify for a refund. A dated proof of purchase must be provided before a warranty claim will be considered.

Can you build me a custom bike?

Sorry we don’t do custom builds, but you can contact one of our many stockists for assistance in building up a bike.

Where are your frames stocked?

You can see a list of shops where our frames are stocked here. If your LBS isn’t listed then ask them to get in touch with us about ordering a frame for you.

Where are your frames made?

Our frames are made in Taiwan. They are handmade using traditional brazing and welding techniques with the highest quality materials by a team of frame builders who have over 2 decades of experience. Each frame undergoes extensive quality and safety checks before it is shipped to us in the UK. Although built overseas our frames were carefully designed by us in London and are exclusive to Brother Cycles.