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2025 Bombtrack

MUNROE SG

A 650b aluminum frame hybrid bike with mid-range components and tektro mechanical disc brakes.
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Weight26.5 lbs  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels650b Aluminum
Drivetrain1 × 9
GroupsetmicroSHIFT Advent
BrakesTektro Mechanical Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

30 mph

MUNROE SG

35 mph

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Highest gear

(descending)

Sizing
SM

5'2" – 5'7"

MD

5'6" – 5'11"

LG

5'9" – 6'2"

🐐 Estimated

Rider Fit Notes

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Geometry
Specs
Build
Frame

6061-T6 triple butted aluminium, QR, rack / fender mounts, 68 mm BSA shell

BB StandardBSA, Threaded

Tire Clearance50c (27.5″) / 35c (700c)

ColorsMatt Black; Matt Metallic Olive

Fork

6061 aluminium, QR dropouts, with fender / rack / triple cage mounts, internal light cable routing

Bottom Bracket

BSA sealed BB, 119 mm, square taper

Headset

Neco H282 sealed external aheadset, 1.1/8''

Stem

Seido Meander forged aluminium stem, -6°

Handlebar

Bombtrack CX-10 drop bar, 31.8 mm, 10° flare

Saddle

Bombtrack Fuzz saddle

Seatpost

Bombtrack Beech 27.2 mm x 315 mm

TypeRigid

Pedals

Wellgo B109N flat pedal

Grips

Bombtrack Control bar tape

Groupset
Rear Derailleur

Microshift Advent RD-M6195M, clutch

Front Derailleur

-

Crank

Bombtrack AF19 aluminium crank, square taper

Shifters

Microshift Advent SB-M090 dual Control lever 1 x 9

Cassette

Microshift CS-H093 9-speed, 11 - 46 T

Chain

KMC X9 chain, 1/2'' x 11/128'', 114L

Brakes

Tektro Mira post mount mechanic disc brakes

TypeTektro Mechanical Disc

Wheels
Rims

Front: WTB ST i21 double wall, TCS 2.0, 32h, Rear: WTB ST i21 double wall, TCS 2.0, 32h

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

Tires

Front: Kenda Kwick Seven.5 650B x 45C, Rear: Kenda Kwick Seven.5 650B x 45C

Disc Rotors

Tektro 180 mm front and 160 mm rear rotor

Accessories
Lights

-

Fenders

-

Racks

-

Rider Notes
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First added July 12

Last updated June 7