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Calibre Gauntlet 650B Mountain Bike

Discount Card Price
Retail Price £700.00Was £599.00

Colour: Blue-White
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A hardtail mountain bike that gives you great speed and complete control over varied terrain.

The Calibre Gauntlet 650B Hardtail Mountain Bike is built around 27.5" wheels for versatile trail performance, with a host of high quality components that include SRAM X5 shifting, Rockshox forks and Avid Elixir 1 hydraulic disc brakes.

Check out the gallery pictures above to see the Gauntlet's great 4 Star review from What Mountain Bike Magazine August '16!

Designed from the ground up by Calibre's experts, the frame geometry ensures you get the very best out of the 27.5" wheels. Short chainstays reduce the wheel base for sharp, fast cornering while a slack head angle improves stability at high speed. Strong, lightweight alloy tubing is hand-welded throughout for powerful performance in tough terrain.

The wheels themselves use specific trail rims laced to quality aluminium hubs. At 23mm wide, they follow the current trend of wider rim profiles to get the best grip and traction out of your tyres. The tyres come from WTB as well: the all-mountain 2.3" WTB Vigilante front and 2.2" Trail Boss rear tyres with a square-lugged, open-tread pattern for superb stability in loose and wet conditions.

Up front, Rockshox XC30 Solo Air forks provide 120mm of plush air suspension with a lockout for when the suspension isn't needed. Air forks are lighter and more adjustable than spring forks and are generally better for xc, trail and all-mountain riding. Quality air forks from a respected brand like Rockshox on bike under £700 is fantastic value for money!

Shifting comes courtesy of Rockshox's parent company SRAM, whose X5 shifters offer sharp, quiet performance over a wide range of 20 gears. Avid Elixir 1 hydraulic disc brakes mean consistent stopping power with superb modulation. The high level of componentry continues to the contact points, where a WTB saddle and Ritchey MTN trail handlebar ensures great comfort and control.

Please check the info tab for geometry details


Wheel Size: 650B
Frame: Lightweight 6061 hydroformed alloy frame with one piece wishbone seat stays
Fork: RockShox XC30 Solo Air 120mm
No. of Gears: 20
Gear Details: SRAM X5 2 x 10 speed
Gear Shifters: SRAM X5
Front Derailleur: SRAM X5
Rear Derailleur: SRAM X5
Chainset: FSA Gamma drive 36/24T with bash guard
Cassette: SRAM 1030 11-36T
Brakes - Type: Hydraulic Disc
Brakes - Details: Avid Elixir 1
Brakes - Levers: Avid Elixir 1
Weight: 12.8kg
Rims: Calibre disc specific
Tyres: WTB Vigilante 2.3" front and WTB Trail Boss 2.2" rear
Front Hub: KT Alloy 32H
Rear Hub: KT Alloy 32H
Stem: Calibre Trail 70mm extension
Saddle: WTB Volt
Handlebar: Ritchey MTN Trail 760mm width, 20mm rise
Head Set: FSA No.28
Pedals: Platform pedal
Gender: Unisex
Seatpost: Alloy 30.9mm 350mm


Gauntlet Geometry
16" 18" 20"
Seat Tube 406mm 457mm 508mm
Effective Top Tube  580mm 596mm 627mm
BB Drop 33mm 33mm 33mm
Rear Centre 425mm 425mm 425mm
Seat Angle 72° 72° 72°
Head Angle 67.5° 67.5° 67.5°
Head Tube Length 110mm 120mm 130mm

Reviews (9)

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  • 5 out of 5
Amazing quality bike., 29 April 2017
By Martyn (Scotland)
I was initially looking for a mondraker vantage but decided to look around and see what else was out there, i had settled on a kona shred when i walked into go outdoors and discovered the gauntlet, when i bought it i thought i was getting five hundred pouns worth of bike, what i actually got was a thousand pounds of bike for five hundred, the spec is unbeatable for the price and the bike feels solid on all trail conditions. Ive ridden all types of bikes for years and this is by far the most capable.

  • 4 out of 5
Pretty good, 13 March 2017
By Julian (Cincinnati, Ohio)
Out of the box the bike was a little out of tune, so i tuned it up and it runs pretty good. I would like to see a 180mm rotor on the front, but for the price this bike is the best bang for your buck. I would recommend this bike to someone who is somewhat new to mountain biking and is interested in getting a pretty nice bike at a very low cost

  • 4 out of 5
High quality Components, but badly assembled, 30 October 2016
By Kevv (Germany)
I ordered the Gauntlet from Germany, and received the bike within a week. The components on this bike for the low price are absolutely great.
The tires have good grip, good shifting and the air fork works really good. The brakes are decent but i upgraded the front brake disc rotor to a 180mm instead of the 160mm. The frame looks really good but the seatpost has a odd size of 30,8 mm. So its not possible to fit a dropper post without an adapter.

I was not satified with the way the bike was put together. The brake was rubbing, slow shifting, there is a scratch on the frame, the shifter and on the spokes of the rear wheel. The rear wheel also had to be trued. So i had to put in some work before my first ride.

If you own some tools and have expirience with bikes, this is the bike to order for you.

Bike: *****
Assembly: **
Delivery Time and Cost: *****

  • 4 out of 5
Really good bike for the money, poor quality control, 23 October 2016
By Hans Dampf (Germany)
i ordered the bike from germany and got it within a week. the forks are awesome and gearing too. i only upgraded the brake disc up front to a 180 mm disc.

but the quality control from gooutdoors is really not the best. i had to tighten the cassette, set the brake pads, true the wheel and set the shifting because it shifted too slow

  • 5 out of 5
Fantastic downhill for the price, 24 June 2016
By Bowfinger (edinburgh)
Bought this bike last week. It's a dream uphill, the SRAM gears are great, fast shifting and accurate. The forks are fantastic for getting over everything downhill with the lock off.

Also the guys in the shop went out of their way on service.


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