Brother Stroma frame set
We met James and Will from Brother Cycles over ten years ago at the Berlin bike show and thought their bikes and framesets were cool, and not just because they focus on steel. We have been working together for a few years now, putting together custom builds based on the different Brother Cycles frames.
However, if you want to get your hands dirty, you can of course build a great and versatile racer based on the frame set. That's why we've decided to gradually make Brother's models available online.
For us as fans of all-road bikes, the Stroma is a wonderful example of the one-for-all concept. With the right tires, 35mm tire clearance allows for extended tours on forest paths, but the bike also works wonderfully with 30mm wide racing slicks that roll comfortably and quickly. The Stroma can be a long-distance racing bike, is a year-round training wonder thanks to discreet mudguard eyelets, is suitable for bikepacking and commuting, and is not afraid of unpaved roads.
The frame is made of Reynolds 725 and comes with Brother's own 1 1/8 - 1 1/2 full carbon fork. The required headset is for 44mm, ZS44/28.6 on top, EC44/40 on the bottom.
Further details of the frame can be found on the Brother website
The frame is also available in sizes M, L and XL in light grey, with this model the fork coming in black.
Frame : Reynolds 725 heat treated, double butted chromoly main triangle, ED coated. Reynolds 520/500 custom shaped rear triangle.
Brake compatibility : flat mount, maximum rotor size 160 mm
Rear installation width : 12 x 142 mm TA (included)
Seat post diameter : 27.2 mm
Seat clamp diameter : 30 mm (included)
Headset : 44 mm, ZS44/28.6 above, EC44/40 below (not included)
Derailleur clamp diameter : 28.6 mm
Bottom bracket shell : 68 mm bottom bracket, ISO thread
Maximum tire clearance : up to 700c x 35mm (30mm with mudguards)
Fork : 1.5″ – 1.1/8″ tapered steerer, carbon monocoque disc fork, fender mounts. 12x100mm TA (included)
2 sets of bottle cage mounts for all sizes
Mounts for luggage racks and mudguards
Di2 cable connectors
Chainring clearance : up to 53-39t double, 50t single
Frame weight (size M) : 1.97 kg
Fork weight (uncut steerer tube) : 0.50 kg
You can pick up this item in our store at Oststraße 119, 40210 Düsseldorf. Simply select “Pickup” in the ordering process. After your order you will receive all the information about pickup.
ON REQUEST WITH BEARING INSTALLATION
We are happy to install the headset and bottom bracket before shipping
Just send us an email after your purchase
FREE SHIPPING
from 80€ order value
*Standard shipping within Germany
ALSO AVAILABLE AS A CONSTRUCTION
We are happy to build your individual structure with the frame