Brother Cycles Stroma Frameset

 1.019,90 *

Brother Cycles:

The Stroma is our new Reynolds 725 steel all-road frame – a versatile, year round road bike suited to the ever changing weather and road surfaces of the UK. The bike is fast, responsive and most importantly fun to ride and we’ve designed it to accommodate large volume road tyres meaning you won’t need a different bike for every season.

The Stroma truly lives up to its namesake; a remote island off the rough north east coast of Scotland, battered by ferocious weather and near impenetrable tides.

The Stroma is constructed out of Reynolds 725 steel; a heat treated tubing famed for its strength and weight saving properties and an ideal material for the challenges posed by year round road cycling. We’ve matched this with the Brother full carbon road fork up front giving you a lightweight and responsive front end with optimum power transfer. The frame and fork have fitted eyelets for full mudguards and clearance for up to 33mm tyres or 30mm with mudguards

Other features include thru-axle flat-mount dropouts, replaceable dropout inserts, 2 x bottle cage and rear rack mounts, and Di2 routing.

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Frame tubing: Reynolds 725 heat treated chromoly double-butted main triangle, ED coated
Brake compatibility: flat mount, 160mm max rotor size
Rear Dropouts: 12x142mm TA (included)
Seat post diameter: 27.2mm
Seat clamp diameter: 30mm (included)
Headset: 44mm, ZS44/28.6 upper, EC44/40 lower (not included)
Front derailleur clamp diameter: 28.6mm
Bottom bracket shell: 68mm bottom bracket, ISO threaded
Maximum tyre clearance: up to 700c x 33mm (30mm with mudguards)
Fork: 1.5″ – 1.1/8″ tapered steerer carbon monocoque disc fork, mudguard mounts. 12x100mm TA (included)
2 sets bottle cage mounts on all sizes
Rear rack and mudguard mounts
Di2 cable ports
Chainring clearance: up to 53-39t double
Frame weight (medium): 2.0kg
Fork weight (uncut steerer): 0.5kg

Size xSmall Small Medium Large xLarge
Seat Tube (C-T) 500mm 520mm 540mm 560mm 580mm
Top Tube (C-C) 510mm 526mm 542mm 557mm 572mm
Top Tube (Effective) 522mm 540mm 557mm 572mm 587mm
Head Tube 110mm 125mm 140mm 160mm 180mm
Head Angle 71 72 72.5 72.5 72.5
Seat Angle 74 73.5 73 73 73
BB Drop 70mm 70mm 70mm 70mm 70mm
Chainstay 420mm 420mm 420mm 420mm 420mm
Fork Length (A-C) 381mm 381mm 381mm 381mm 381mm
Fork Rake 45mm 45mm 45mm 45mm 45mm
Stack 532mm 550m 563mm 585mm 604mm
Reach 369mm 377mm 385mm 393mm 402mm
Wheelbase 990mm 995mm 1002mm 1017mm 1032mm


Brother Cycles