Brother Cycles Kepler Frameset

Availability & Ordering
We list all framesets currently available from Brother Cycles as “in stock." While we have a few on hand, most orders will be fulfilled via special order with approximately 14-day delivery.

To confirm ETA or any other questions, get in touch:
shop@bicyclejunction.co.nz - 04 385 2362

One frame. Endless adventures.

The Kepler has been Brother’s all-rounder workhorse for nearly a decade—and it just got even better. With updated features like a new lugged steel fork with dynamo routing, internal brake cable routing, and a stunning oak leaf metal head badge, the Kepler continues to deliver unmatched versatility for touring, commuting, and off-road exploration.

It runs 700c or 650b wheels, fits up to 700x45c or 650x48c tyres, and comes fully equipped with rack, fender, and triple bottle mounts. Whether you’re bikepacking across continents or riding to the corner shop, the Kepler is ready. What’s New on the 2025 Kepler

Lugged steel fork with dynamo routing

Internal rear brake routing

Brazed-on seat collar

Bottle bosses on down tube

Oak Leaf metal head badge Specs

Tubing: 4130 double-butted chromoly steel (ED coated)

Fork: Lugged chromoly steel, 300mm steerer, 12x100mm TA (included)

Rear dropouts: 12x142mm TA (included)

Brake mount: Flat mount, 160mm max rotor

Tyre clearance: 700x45c or 650x48c

Bottom Bracket: 68mm ISO threaded

Seatpost: 27.2mm - Front derailleur clamp: 28.6mm

Headset: 1 1/8" threadless (not included)

Mounts:

Triple bottle mounts (including on fork blades)

Front & rear rack and mudguard compatible

Chainring clearance:

Triple: up to 52-39-30t

Double: up to 50-34t

Single: up to 48t

Frame Weight (56cm): 2.25kg

Fork Weight (uncut): 1.2kg

Tested to ISO 4210 standard

From gravel trails to global tours—the Kepler is your ride, your way.