the Munroe AL

A best cut through crosstown traffic

"An investment in healthier urban transport."

Introducing the Munroe AL

An investment in healthier urban transport. The affordable Munroe AL is a radical commuter built around a light aluminium frame, simple single-chainring drivetrain, and broad 650B tyres. Easy to ride and keep rolling, its wide handlebar provides plenty of leverage, while disc brakes call a halt as soon as you pull their levers. Like all Bombtrack bikes, it’s adaptable, able to accommodate multiple luggage configurations, and fun enough you’ll want to ride it at the weekend too.

 


  • *
    New urban flat bar bike on 650B wheel platform.
  • * 6061-T6 triple butted aluminium with cage, rack and fender mounts, QR dropouts, 68 mm BSA shell and post mount disc brakes.
  • * Full alloy disc fork with cage, fender and rack mounts.
  • * Bombtrack Aude square taper crank.
  • * Tubeless ready WTB ST i21 double wall rims.
  • * Bombtrack ARC disc brake hubs.
  • * Microshift 1 x 8 speed drivetrain with 11 – 34 T cassette.
  • * Shimano hydraulic disc brakes with 160 mm rotors.
  • * Comfortable Kenda Kwick Seven.5 650B x 45C tires.
  •  

  • SPECIFICATION

    Color 1 Matt Pewter
    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 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 steel, 34 T
    Cassette MICROSHIFT CS-H82 8-speed, 11 - 34 T
    Front derailleur -
    Rear derailleur MICROSHIFT RD-M36S
    Front hub BOMBTRACK ARC sealed, 6-bolt disc hub, QR axle
    Rear hub BOMBTRACK ARC sealed hub, 11-speed, 6-bolt disc, QR 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 ORIGIN Saddle
    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 -
    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
  • BUILD INFO

    BB Standard BSA - 68 mm shell width
    Headset Standard (S.H.I.S.) EC34 / 28.6 | EC34 / 30
    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 40 T with 45 mm chainline
    Maximum chainring clearance 2x 52 / 38 T with 45 mm chainline
    Seat Post Diameter 27.2 mm
    Seat 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 -
    Derailleur hanger BT-DH-019
    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
    Spoke length front wheel tba
    Spoke length rear wheel tba
    Spoke count (front / rear) 32 / 32
    ERD 568 mm
    Front hub PCD 58 mm
    Rear hub PCD 58 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
  • GEOMETRY FRAME

    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

    * 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.

  • GEOMETRY HANDLEBAR

    Bike Size S M L
    Handlebar type Flatbar Flatbar Flatbar
    Width (drops) - - -
    Width (barends) 680 680 680
    Reach - - -
    Flare - - -
    Backsweep
    Drop - - -
    Upsweep - - -
    Rise - - -

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