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Twostroke AL

24 | GUNMETAL / BLACK

24" Wheels, 6-11 Years, 120-145cm
Wide Range SRAM 1x8 Drivetrain, Ergonomic SDG Cockpit and Saddle
High-Volume Kenda Booster 2.4” Tires
999.00CHF
Other CurrenciesEURO €949
CHF 999
USD $949
CAD C$1299
AUD A$
SCEuro €999
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A lightweight aluminium frame, with a premium durable powder coating and a dedicated geometry to smaller riders. Featuring 24” wheels, an 8-speed SRAM groupset and TEKTRO brakes, with tailored ergonomics for a confidence inspired ride. Simple. Functional. Fun.

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A lightweight aluminium frame, with a premium durable powder coating and a dedicated geometry to smaller riders. Featuring 24” wheels, an 8-speed SRAM groupset and TEKTRO brakes, with tailored ergonomics for a confidence inspired ride. Simple. Functional. Fun.
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Innovation
Lightweight Frame

Double butted tubes for a lightweight frame with a distinctive and premium look.

Tailored Ergonomics

Bars, levers, cranks and saddle are tailored for the ergonomics of young riders for a comfortable and custom-made ride.

Dedicated Geometry

Inspired by our MTB’s and adapted to smaller riders for intuitive and reliable riding.

Powder Coat Finish

Powder coating is highly resistant to wear and reduces the impact on the environment with excess powder being reused rather than wasted: simply clever. A thin layer of gloss paint adds a premium finishing touch.

Control and Safety

Hydraulic brakes and high-volume tires provide control and safety on various surfaces with low rolling resistance.

Technical Overview

  • Frame

    Twostroke AL 24" Lightweight Aluminium with Powder Coat Finish
    1 1/8" Head Tube
    BSA Threaded Bottom Bracket
    160mm Post Mount
    9X135mm QR

  • Fork

    Twostroke AL 24" Lightweight Aluminium with Powder Coat Finish
    140mm Post Mount
    9X100mm QR

  • Gears

    1X8

  • Chainwheel

    Lightweight Forged Alloy Cranks 32T 1x Specific Narrow Wide Chainring 140mm

  • Cassette

    SUNRACE 11-34T

  • Chain

    SRAM 8spd

  • Rear Derailleur

    SRAM X4. Medium Cage

  • Shifters

    SRAM X4 8Spd Trigger

  • Brakes

    TEKTRO HD-M286 - Short Reach Levers | Tektro TR140-22 140mm

  • Handlebar

    SDG Slater Handlebar - 650mm Wide - 20mm Rise - 19mm Bar Ends - 31.8mm Clamp.

  • Stem

    BMC 35mm Length - 6deg angle

  • Seatpost

    Alloy 27.2mm

  • Saddle

    SDG Fly Jr

  • Hubs

    CNC Machined Alloy Hub Body - Sealed Bearings - Quick Release

  • Rims

    DD32

  • Tires

    Kenda Booster 24x2.4"

  • Tire Clearance

    58mm (Measured Width)

  • Weight Limit

    60 Kg

  • ASTM Classification

    Level 3

BMC Twostroke AL 24 GUNMETAL / BLACK | Mountain Bikes

Size 24
Rider Height CM 120-145
Stack MM 507
Reach MM (reach) 350
Seat Tube MM (st) 300
Top Tube MM (tt) 505
Head Tube MM (ht) 105
Seat Tube Angle (sa) 73.0
Head Angle (ha) 68.0
Rear Center MM (rc) 392
Front Center MM (fc) 538
Wheelbase MM (wb) 972
BB Drop MM (drop) 40
Fork Length MM (fl) 412
Fork Rake MM (fr) 40
Trail MM (trail) 82
Crank Length MM 140
Stem Length MM 35
Stem Angle ±6
Bar Width MM 650
Bar Rise MM 20
Backsweep 5
Post Offset MM 15
Standover Height mm 580
Seatpost Length MM 300

Frameset

  • Twostroke AL lightweight aluminum with powder coat finish

Technical Details

  • Powder coat finish
  • Internal cable routing
  • Molded chainstay guard
  • Waterbottle mount
  • ASTM level 3

Sizes

20" and 24"


Weight*

  • 8.6 kg (Twostroke AL 20")
  • 9.6 kg (Twostroke AL 24")

Min and Max Saddle Height**

Min: 55/48/35 cm (Twostroke AL 20")

Max: 72/65/52 cm (Twostroke AL 20")

Min: 64/51/37 cm (Twostroke AL 24")

Max: 80/69/55 cm (Twostroke AL 24")

Min and Max Inseam

Min: 50 cm (Twostroke AL 20")

Max: 72 cm (Twostroke AL 20")

Min: 59 cm (Twostroke AL 24")

Max: 80 cm (Twostroke AL 24")


Compatibility

Frame, Fork and Seatpost

  • 1 1/8" head tube with semi-integrated headset
  • 1x drivetrain
  • BSA threaded bottom bracket
  • 1 waterbottle mount
  • Alloy seatpost, 27.2 mm diameter

Brakes

  • Post mount, 140 mm

Wheels and Axles

  • 20"/24" x 58 mm tire clearance

*Weight for the complete bike, w/out pedals

**Measured at ground/pedal/bottom bracket

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