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Make light work of the toughest trails with this Calibre mountain bike with large 27.5” tyres and modern geometry.A tough yet lightweight alloy frame supported by full Shimano Acera gears to help you tackle climbs and downhill sections. The 100mm Suntour forks offer excellent support on uneven ground, while the hydraulic disc brakes give you full confidence to attack the trail with everything you’ve got. Available in small, medium and large, the Calibre Saw offers plenty of bang for your buck and is a great option for those looking to get into mountain biking without breaking the bank.

Product code: 15904161 / 323209

Key Features

  • Bottom Bracket: Cartridge 113mm
  • Brakes - Details: Shimano
  • Brakes - Levers: Alloy
  • Brakes – Type: Hydraulic Disc
  • Cassette/Freewheel: Shimano
  • Chainrings: KMC
  • Chainset: Truvativ E300
  • Fork: Suntour XCT suspension fork, with 100mm travel
  • Frame: 6061 lightweight Alloy
  • Front Derailleur: Shimano TX50
  • Front Hub: Quick release
  • Gear Details: Shimano Acera
  • Gear Shifters: Shimano
  • Gender: Mens
  • Handlebar: Alloy 31.8mm
  • Head Set: A-head
  • Pedals: Resin platform pedal (test pedals)
  • Rear Derailleur: Shimano
  • Rear Hub: Steel
  • Rims: Double wall alloy
  • Saddle: Calibre sport
  • Seatpost: Alloy 30.9mm 300mm
  • Speed: 21
  • Stem: Alloy A-head
  • Tyres: 650B x 2.1"
  • Wheel Size: 650B
  • Colour  Black/Yellow
  • Weight: 14 kg
  • Small - 5'2" - 5'10" / Medium - 5'5" - 5'10" / Large - 5'10" - 6'1" / XL - 6' - 6'6"

**Some minor assembly is required. See our video (below the image) or consult our assembly guide for assistance.


Delivery & Returns


You can return your bike within 28 days of delivery or collection for a refund or exchange, this can be done by returning it to our warehouse or taking it to your nearest GO Outdoors store where it will be returned free of charge. A refund will be issued once it is processed in to the warehouse. Unfortunately we are not able to accept bike returns at Blacks stores.

If your bike develops a fault please take it to your nearest GO Outdoors store (excluding Hathersage and Southport) where we have a full workshop and trained mechanics who will be able to assist you. If you believe there is a fault with your bike please do not send it back to our warehouse as they are unable to process faulty or warranty bikes.

This product qualifies for the following delivery methods

Standard UK Delivery (7-10 Days) (FREE)


A tracking link will be provided once your order is despatched.

Bike Delivery (7-10 Days) (£4.99)


Bike delivery is £4.99. This applies to all bikes, and these orders are upgraded to a DHL courier service.

Premium Express Delivery (£6.95)


A tracking link will be provided once your order is despatched.

Standard Next Day Delivery (£6.95)


Premium Next Day Delivery (£6.95)


Collect from Store (FREE)


Delivery times and days vary for each store, but we will contact you when your order is ready to collect. Please do not contact our Customer Care team for updates until after the estimated delivery time in your order confirmation email.

International delivery

From £4.99 to over 200 countries worldwide. Some restrictions apply.


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The Blacks Label signifies a tried and tested product that will not be beaten on price. It represents the pinnacle of performance and the greatest value. The Blacks Label range embodies the foundations of Blacks itself; the best gear, for the best value that is purpose built to get you out there. As a result, all 'Blacks Label' products are excluded from any promotional offer we may run on the website.