The BMC Twostroke AL Five is a mountain bike, built on a aluminium frame, listed at $1,649. An off-road bike for trails, with grippy tyres and trail-ready geometry.
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SizingWhat size Twostroke AL Five do I need?
cm
Enter your height to see the size BMC recommends.
BMC Twostroke AL Five size chart
Size
Rider height
In feet
S
under 170 cm
under 5 ft 7 in
M
170 to 182 cm
5 ft 7 in to 6 ft 0 in
L
180 to 192 cm
5 ft 11 in to 6 ft 4 in
XL
190 cm and over
6 ft 3 in and over
Rider heights from BMC's size chart. Height is a starting point: arm and leg length, flexibility and riding style all matter, so a test ride beats any chart. How bike sizing works.
SpecificationsWhat we know
Brand
BMC
Model year
2022
Category
Mountain
Frame
Aluminium
Wheel size
29-inch
Drivetrain
Shimano Deore 11-speed
Brakes
Disc
Frame sizes
S, M, L, XL
Price
$1,649, RRP AUD (Jonny Sprockets)
Specs and pricing are listed in AUD and sourced from Australian retail listings. Confirm the current details and availability with the seller before purchase.
GeometrySize M
BMC Twostroke AL Five, size M. Published geometry, drawn to scale (BB drop or fork offset not published, typical value used).
Stack
598 mm
Reach
445 mm
Stack/reach
1.34
Head angle
67 deg
Seat angle
75 deg
Wheelbase
1135 mm
Chainstay
425 mm
BB drop
64 mm
GearingRatios
0.70lowest (climbing)
2.91highest (speed)
Very low climbing gear
Ratios are derived from the chainrings and cassette. They describe the gearing, not any rider's ability.
Drivetrain & buildFull specification
Groupset
Shimano Deore
Speeds
11
Crank
Forged Alloy Crank, 32T 1x Narrow Wide
Chainrings
32
Cassette
11-46
Brakes
Shimano BR-MT200 hydraulic disc
Rotors
160/160mm
Wheelset
Shimano MT400 hubs, XCD23 rims
Stock tyre
29x2.25
Max tyre clearance
58 mm
Fork material
SR Suntour XCM 32
SuspensionMTB detail
Front travel
100 mm
Fork
SR Suntour XCM 32
Dropper
No, rigid seatpost
Bike DNAWhat the numbers say
Steering
A 67 deg head angle points to balanced trail handling.
Climbing
Lowest ratio 0.7 is a very low climbing gear for steep or loaded climbs.
Derived from the published geometry and gearing above. It describes the numbers, not a ride test.
BikeFinder Data Profile: geometry and specification researched from published sources (backfill 2026-09-27: 99spokes.com, jonnysprockets.au, vitalmtb.com), verified 2026-09-27. This is a specification analysis, not a physical ride review.