Trek Mamba review

Unusual build

Our rating 
2.5 out of 5 star rating 2.5
GBP £700.00 RRP | USD $909.99
Trek Mamba
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The Mamba’s frame is trail worthy, with stable geometry and a suspension fork offers the best control in the test. The 100mm-travel RockShox Tora with lockout, preload adjustment (to cater for different rider weights) and rebound damping was the highlight of the Mamba and turned out to be a favorite within the test. Unfortunately, advantage gained by the frame and fork are quickly offset by the bike’s concessionary spec. The Mamba is one of only two bikes in this test with a 3×8 drivetrain, and the tall 32-tooth cog limits its climbing prowess. Trek picked a strangely bent handlebar that’s much more appropriate for a city bike, and has no business being on a mountain bike.

  • Standout features: Best suspension fork in the test, a RockShox Tora 29 w/G2 geometry, solid frame (both construction quality and geometry)
  • Pros: Best suspension fork; contemporary 29er geometry
  • Cons: Too many concessions – eight-speed, cable actuated disc brakes, square taper bottom bracket spindle; worst handlebar in the test; also heaviest of the hardtails in the test
  • Weight: 14.5kg/31.96lb. Wheelset: 5.31kg/11.7lb

Product Specifications


Name Gary Fisher Collection Mamba (11)
Brand Trek Bikes

Pedals Wellgo ATB, boron axle, steel cage
Front Derailleur Shimano Deore
Weight (lb) 31.96
Weight (kg) 14.5
Stem Bontrager SSR
Shifters SRAM X.4, 8 speed
Seatpost Bontrager SSR, 27.2mm, 20mm offset
Headset Type 1-1/8" threadless, semi-integrated, semi-cartridge bearings
Head Angle 69.3
Handlebar Bontrager Approved Big Sweep, 15 degree sweep
Grips/Tape Bontrager Race Lite
Frame Material 6061 T6 aluminum, butted and hydroformed tubing, cold-forged dropouts & bottom bracket, G2 29" geometry
Rear Derailleur SRAM X.5
Fork RockShox Tora 29 w/TurnKey lockout, custom G2 geometry, 51mm offset crown, 80mm
Cranks Shimano Acera, 44/32/22
Cassette SRAM PG-830 11-32, 8 speed
Brakes SRAM BB5, mechanical disc, 6-bolt; 160mm rotors
Available Sizes 17.5 19 21 23" 15.5
Available Colours Matte Black Titanite/Matte Kingfisher
Seat Angle 72.5
Saddle Bontrager Evoke 1
Rear Shock NA
Spoke Type Bontrager 29-2, 29x2.1"