Skip to page content
Disruption Delivery Message
Home » Cycling » Bikes » Mountain Bikes » Gauntlet 650B Mountain Bike

Delivery Country and Currency Selector

Please select your delivery country from the drop down below.

Please select your currency from the drop down below.

Update site with selected country and currency

We now ship to United Kingdom from £0.00

If you are not visiting from United Kingdom please select
your country from the drop down below.

Continue To GO Outdoors

Calibre Gauntlet 650B Mountain Bike

Discount Card Price
Retail Price £700.00SAVE28%
Blue-White - Collect Only

Collect In-Store

Click & Collect Click & Collect - FREE
Collect+ Collect+
Home Delivery Home Delivery
International Delivery International Delivery
Optional Extras


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: Rock Shox XC30 Solo Air, RockShox XC30 Solo Air 120mm
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
Brakes - Type: Hydraulic Disc
Brakes - Details: Avid Elixir 1
Brakes - Levers: Avid Elixir 1
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
Bottom Bracket: Cartridge Spline
Pedals: Platform pedal
Speed: 20
Seatpost: Alloy 30.9mm 350mm
Weight (kg): 12.8
Recommended Use: Cycling
Gender: Unisex
Cassette/Freewheel: SRAM 1030 11-36T


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


Calibre Gauntlet 650B Mountain Bike
Sort By:
Add A Review



At GO Outdoors we offer a wide range of delivery options to suit your needs. You can come into one of our fantastic stores to collect or have your items delivered to you at your convenience.

Please see our delivery page for more information. Restrictions apply. Prices and delivery times may vary for remote or rural parts of the UK. Working days are Monday-Friday, excluding UK Bank Holidays.

Collect In-StoreCollect In-Store
Check stock and reserve items at your store for collection the same day. If the items are available for home delivery, then we can arrange to have them delivered to your local store for the following day

Free Delivery over £50 <span style='color:#ADADAD'>Free Delivery over £50  </span>
You've spent over £50, you qualify for free delivery

Next Day Delivery <span style='color:#ADADAD'>Next Day Delivery </span>
Order by 8pm and get your item delivered to you the next day

Saturday Delivery <span style='color:#ADADAD'>Saturday Delivery </span>
Order by 8pm Friday for delivery on Saturday (Not available for NI, Channel Islands or Highlands)

AM Delivery<span style='color:#ADADAD'>AM Delivery</span>
Order by 8pm and get your item delivered to you by 12pm the next working day (Not available for NI, Channel Islands or Highlands)

Delivery before 10:30am<span style='color:#ADADAD'>Delivery before 10:30am</span>
Order by 8pm and get your item delivered to you by 10:30am the next working day (Not available for NI, Channel Islands or Highlands) Excludes Bank Holidays.

British Forces Post Office <span style='color:#ADADAD'>British Forces Post Office </span>
Forces ONLY and cannot be used for civilian or business deliveries

International Delivery<span style='color:#ADADAD'>International Delivery</span>
International Delivery will take between 7 - 10 days and you are liable for any local duty and/or taxes


Returning an Item

If you receive your order and it is not what you are expecting you can return it back to us within 30 days of receiving the goods for an exchange or refund (including the delivery charge if you return it within 14 days).

You can return your items by using Collect+ or by taking them to any GO Outdoors store (except Hathersage) using your delivery note as proof of purchase.

See our returns policy for more information.