MUNROE AL

Our most affordable model in the Munroe line, the AL, is a fun urban bike happy to take you to work and back in comfort thanks to its upright position, simple 1 x 8 Microshift drivetrain and those large volume Kenda 650 x 45 mm tyres. But the Munroe AL is capable of much more. The lightweight frame and fork have mounts for the obligatory rack and fenders, should you wish to ride through the winter. If the weekly grind gets too much, we’ve added bottle and triple cage mounts so you can escape for the weekend with just a few pedal strokes.

MATT PEBBLE GREY

HIGHLIGHTS

GEOMETRY

Urban flat bar bike on 650B wheel platform.
FRAME

Aluminium frame with cage, rack and fender mounts and post mount disc brakes.
FORK

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

Microshift 1 x 8 speed drivetrain with Clarks Clout hydraulic disc brakes.
WHEELS

Tubeless ready WTB ST i21 double wall rims.
TIRES

Comfortable Kenda Kwick Seven.5 650B x 45C tires.

Item 1 of 6

"An investment in healthier urban transport."

SPECIFICATIONS
BUILD INFOS
GEOMETRY

Model	MUNROE AL
Color 1	Matt Pebble Grey
Color 2	-
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 Scroll grips
Stem	Bombtrack Roam forged aluminium stem, -7°
Headset	Neco H282 sealed external aheadset, 1.1/8''
Levers	Clarks Clout hydraulic brake levers
Shifter	Microshift TS39-8 shifter 1 x 8
Brakes	Clarks Clout post mount hydraulic disc brake
Rotor	Clarks Clout 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-H81 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 saddle
Seat post	Bombtrack Beech 27.2 mm x 300 mm
Seat clamp	Bombtrack Origin 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 steerer inner diameter	24.6 mm
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
Frame front derailleur compatible	yes
Brake mount front	PM 6''
Brake mount rear	FM 140 / 160
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
Chainring offset	0 mm
Chainline	49 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	300 mm
Bike trailer	approved
Seat tube mounted child seat	not approved
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°
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 *	1580	1690	1790
Maximum rider height *	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