Brothers Kepler Frameset

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2,250 Grams

Product Overview

From Brother Cycles -

The Kepler has been a stalwart in our lineup for 6 years now and keeps going strong into 2021. We designed the Kepler with versatility in mind, it’s a gravel grinder, super commuter, galactic tourer… ready to tackle whatever you throw at it. So if you need a bike that’s as happy on the daily commute as it is on a weekend bikepacking trip, look no further than the Kepler.

The Kepler can run either 700c or 650b wheels and has clearance for 700x45c or 650x48c tyres to keep you stable when the going gets tough. The frame is constructed from double butted 4130 chromoly steel, a functional tubing which provides the perfect balance of comfort and durability and we’ve applied an ED coating under the paint to protect against corrosion. It’s fully equipped to fit front and rear racks, mudguards and has three bottle mount positions if you’re loading up for a longer trip. For 2021/22 the new Kepler now features flat mount thru axle dropouts with a replaceable derailleur hanger, s-shaped chainstays and a unicrown steel fork.

From Us -

The Kepler is a keeper!

Specs -

Frame Size (C-TT) 50cm 52cm 54cm 56cm 58cm 60cm
Seat Tube (C-C) 485mm 505mm 525mm 545mm 565mm 585mm
Top Tube 520mm 530mm 545mm 560mm 575mm 595mm
Head Tube 95mm 95mm 105mm 124mm 142mm 161mm
Head Angle 71 71 71.5 72 72 72
Seat Angle 74.5 74 73.5 73 72.5 72
BB Drop 70mm 70mm 70mm 70mm 70mm 70mm
Chainstay 430mm 430mm 430mm 435mm 435mm 435mm
Fork Length (A-C) 400mm 400mm 400mm 400mm 400mm 400mm
Fork Rake 50mm 50mm 45mm 45mm 45mm 45mm
Stack 530mm 530mm 543mm 562mm 580mm 598mm
Reach 372mm 378mm 384mm 387mm 392mm 401mm
Wheelbase 1009mm 1014mm 1014mm 1025mm 1035mm 1049mm


If you need a headset fitted we would be happy to do so for free! Please get in touch.