MUNROE AL

Available in either our latest matt black or the existing matt pewter finish, we built our affordable Munroe AL based on a light, responsive aluminium frame, with a simple single-chainring drivetrain and competent 650B tyres. Its simplicity keeps maintenance to a minimum, while flat bars ensure comfort in all conditions. Reliable disc brakes respond well even in the rain. With Bombtrack’s signature range of multiple luggage configurations, the constant stop-start of riding through the city has never been this fun.

An investment in healthier urban transport.

HIGHLIGHTS

WHEELS

Tubeless ready WTB ST i21 double wall rims with comfortable Kenda Kwick Seven.5 650B x 45C tires.
FRAME

6061-T6 triple butted aluminium with cage, rack and fender mounts, QR dropouts, 68 mm BSA shell and post mount disc brakes.
FORK

Full aluminium disc fork with cage, fender and rack mounts.
HUBS

Bombtrack Arc disc brake hubs.
CRANK

Bombtrack Aude square taper crank.
DISC BRAKES

Shimano hydraulic disc brakes with 160 mm rotors.
DRIVETRAIN

Microshift 1 x 8 speed drivetrain with 11 – 34t cassette.

Item 1 of 7

MATT BLACK

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MATT PEWTER

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SPECIFICATIONS
BUILD INFOS
GEOMETRY

	MUNROE AL
Color 1	Matt Black
Color 2	Matt Pewter
Frame	6061-T6 triple butted aluminium, QR, rack / fender mounts, 68 mm BSA shell
Fork	6061 aluminium, QR dropouts, with fender / rack / triple cage mounts, internal light cable routing
Handlebar	BOMBTRACK ORIGIN flat bar, 31.8 mm, 8° backsweep
Grips	BOMBTRACK LOCK 145 mm grips
Stem	BOMBTRACK ROAM forged aluminium stem, -7°
Headset	NECO H282 sealed external aheadset, 1.1/8''
Levers	SHIMANO BL-M200 hydraulic brake levers
Shifter	MICROSHIFT TS39-8 8-speed shift lever
Brakes	SHIMANO BR-MT200 post mount hydraulic disc brake with 160 mm rotors
Crankset	BOMBTRACK AUDE aluminium crank, square taper
BB	BSA sealed BB, 119 mm, square taper
Pedals	WELLGO B109N flat pedal
Chain	KMC X8 chain, 1/2" x 3/32"
Chainring	Forged steel, 34 T
Cassette	MICROSHIFT CS-H82 8-speed, 11 - 34 T
Front derailleur	-
Rear derailleur	MICROSHIFT RD-M36S
Front hub	BOMBTRACK ARC sealed hub, 6-bolt disc, hex key skewer
Rear hub	BOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc, hex key skewer
Through axle	-
Front rim	WTB ST i21 double wall, TCS 2.0, 32h
Rear rim	WTB ST i21 double wall, TCS 2.0, 32h
Saddle	BOMBTRACK FUZZ
Seat post	BOMBTRACK BEECH aluminium seatpost, 27.2 mm x 300 mm
Seat clamp	BOMBTRACK ORIGIN forged aluminium seat clamp, 31.8 mm
Front tire	KENDA KWICK SEVEN.5 650B x 45C
Rear tire	KENDA KWICK SEVEN.5 650B x 45C
Fender	-
Rack	-
Kickstand	-
Light	-
Weight	10.7 kg (size M)
Weight frameset	1660 g frame (size M, incl. hanger) / 810 g fork (300 mm steerer)
Maximum rider weight	110 kg incl. luggage
ASTM riding condition	1

Final product may vary in appearance, finish and minor details.

Model	MUNROE AL
BB standard	BSA - 68 mm shell width
Headset standard (S.H.I.S.)	EC34 / 28.6 \| EC34 / 30
Headset crown race angle	45°
Fork max tire clearance w/o fender	650B x 50C / 700C x 35C
Frame max tire clearance w/o fender	650B x 50C / 700C x 35C
Maximum chainring clearance 1x	38 T with 45 mm chainline
Maximum chainring clearance 2x	50 / 34 T with 45 mm chainline
Seat post diameter	27.2 mm
Seat clamp diameter	31.8 mm
Front derailleur clamp diameter	31.8 mm
Brake mount front	PM
Brake mount rear	FM
Maximum rotor clearance front	180 mm
Maximum rotor clearance rear	160 mm
Front through axle	-
Rear through axle	-
ISO testing standard	Road
Crankarm	S - M 170 mm / L 175 mm
Q Factor	174 mm
BCD crank	104 mm, 4 bolt
Chainline	49 mm
Chainring offset	0 mm
Spoke length front wheel	273 mm, 274 mm
Spoke length rear wheel	274 mm, 272 mm
Spoke count (front / rear)	32 / 32
ERD	568 mm
Front hub PCD	58 mm
Rear hub PCD	58 mm
Front hub flange distance / offset	56.5 mm center to center / 6.6 mm
Rear hub flange distance / offset	51 mm center to center / 8.8 mm
Stem length	90 mm
Stem angle	-7°
Headset spacers	1 x 10 mm, 2 x 5 mm
Seat post offset	24 mm
Seat post length	315 mm
Derailleur hanger	BT-DH-019
Frame small parts	BT-CR-007
Hub end caps front	BT-HC-013
Hub end caps rear	BT-HC-018
Cassette body	BT-CB-009
Crankarm bolt	-
Through axle front	-
Through axle rear	-

FRAME GEOMETRY

Model	MUNROE AL
Bike Size	S	M	L
Wheel size	650B	650B	650B
Seat Tube Length	490	520	550
Horizontal TT length	540	563	588
Seat Angle	73.0°	73.0°	73.0°
Seat Angle effective	73.0°	73.0°	73.0°
Head Angle	70.5°	70.5°	70.5°
Headtube Length	130	150	175
BB Drop	70	70	70
Chainstay Length	440	440	440
Fork Offset	45	45	45
Trail	74	74	74
Wheelbase Length	1025	1049	1075
Standover	766	790	816
Reach	368	385	403
Stack	565	583	607
Front Center	595	619	645
Axle to Crown	398	398	398
Minimum rider height ¹	1580	1690	1790
Maximum rider height ¹	1710	1820	1920

¹ Our bike size recommendation generally represents a rough guideline for quickly narrowing down the sizes from which to choose based on the body height. Bike fitting is a complex topic and other measurements and factors have to be accounted for as well. Since no two human bodys are exactly the same it is not possible to give a 100% correct advice for everyone. Therefore BOMBTRACK cannot guarantee for the stated recommendations to be correct for every individual customer. The best way to work out the correct size is to consult a local BOMBTRACK dealer or a professional bike fitter and have them determine the needed size.

HANDLEBAR GEOMETRY