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BMC Twostroke AL 20

BMC Twostroke AL 20
  • Color: Poison Green/Black
  • Color: Turquoise/Black
Color: Poison Green/Black
Size: 20-inch
Please select options Unavailable


A lightweight aluminum frame, with a premium durable powder coating and a dedicated geometry to smaller riders. Featuring 20" wheels, an 8-speed SRAM groupset and TEKTRO brakes, with tailored ergonomics for a confidence inspired ride. Simple. Functional. Fun.


Geometry Chart:
Rider Height CM 110-135
Stack MM 412
Reach MM (reach) 305
Seat Tube MM (st) 275
Top Tube MM (tt) 431
Head Tube MM (ht) 105
Seat Tube Angle (sa) 73
Head Angle (ha) 68
Rear Center MM (rc) 342
Front Center MM (fc) 455
Wheelbase MM (wb) 833
BB Drop MM (drop) 40
Fork Length MM (fl) 307
Fork Rake MM (fr) 35
Trail MM (trail) 66
Crank Length MM 127
Stem Length MM 35
Stem Angle ±6
Bar Width MM 650
Bar Rise MM 20
Backsweep 5
Post Offset MM 15


Frame Twostroke AL 20" Lightweight Aluminium with Powder Coat Finish, 1 1/8" Head Tube, BSA Threaded Bottom Bracket, 140mm Post Mount, 9X135mm QR
Fork Twostroke AL 20" Lightweight Aluminum with Powder Coat Finish, 140mm Post Mount, 9X100mm QR
Rims DD32
Hubs CNC Machined Alloy Hub Body - Sealed Bearings - Quick Release
Tires Kenda Booster 20x2.4"
Chainrings Lightweight Forged Alloy Cranks 32T 1x Specific Narrow Wide Chainring 127mm
Shifters SRAM X4 8Spd Trigger
Rear Derailleur SRAM X4 Medium Cage
Cassette/Freewheel SUNRACE 11-34T
Chain SRAM 8spd
Brakes TEKTRO HD-M286 - Short Reach Levers - 140mm Rotors
Handlebars SDG Slater Handlebar - 650mm Wide - 20mm Rise - 19mm Bar Ends - 31.8mm Clamp.
Stem BMC 35 mm Length - ± 6 Angle
Seatpost Alloy 27.2mm
Saddle SDG Fly Jr
Pedals Sold separately

* Subject to change without notice.

Part Numbers

Option UPC MPN Store SKU
Poison Green/Black / 20-inch 07630027887396 30002687 TSA238113953