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Calibre Bossnut Mountain Bike

£1,400.00£1,500.00(Save 7%)

The Calibre brand is all about introducing people to Mountain Biking and ensuring they have a good experience whatever their budget.  It's hardly surprising that the Calibre Bossnut is renowned as the best entry level full suspension bike on the market. When it comes to getting the best experience possible for the least amount of money, this bike cleans the floor with the competition. The updated frame has a lower standover, longer reach, slacker angles and a full SRAM SX 12 speed groupset, perfect for ripping round trail centres or down technical descents.

Product code: 15903684 / 331527


  • Frame: 6061 Alloy, 130mm rear wheel travel, 142 x 12mm bolt through
  • Forks: Rock Shox Recon RL 130mm - 42mm offset, Alloy tapered steerer
  • Chainset: SRAM SX Eagle Power Spline 32T
  • Front derailleur: SRAM SX Eagle
  • Rear derailleur: SRAM SX Eagle
  • Cassette: SRAM SX Eagle – PG1210
  • Brakes: SRAM Level T brakes with 180mm front and 160mm rear rotors
  • Shifters: SRAM SX Eagle
  • Rims: WTB ST i25 32H tubeless ready
  • Tyres: WTB Vigilante High Grip Comp 2.3" front and WTB Trail Boss Comp 2.25" rear
  • Stem: Calibre Trail 45mm
  • Bars: Calibre Trail 15mm offset – 30.9mm 350mm length
  • Headset: FSA Orbit tapered No. 57E
  • Seatpost: Calibre trail 30.9mm 350mm length
  • Saddle: WTB Volt Sport
  • Pedals: Platform resin test pedals
  • Colour: red
  • Small - 5'2" - 5'6" / 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.


OEXTM10026RED 6205200090#

Delivery & Returns


We are not able to accept bike returns at any Ultimate Outdoors stores

If you change your mind you can return your bike within 28 days of delivery for a refund to our Returns department. You may also return bikes to any GO Outdoors store (excluding Hathersage and Southport) who will return it for you free of charge. A refund will be issued once it is processed by our Returns department.

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 or repair bikes.

This product qualifies for the following delivery methods

Standard UK Delivery (3-5 Days) (FREE)


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

Premium Next Day (£6.95)


Delivered between 8am and 8pm including weekends. 1 Hour delivery window with updates by email and SMS.

Bike Delivery (3-5 Days) (£4.99)


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

Standard Next Day (£4.99)


Delivered between 8am and 8pm including weekends. Next day cannot be offered in the following areas, and will be attempted within 48 hours: BT (all Northern Ireland), GY, IM, JE, KW11-17, HS, PH32-35, ZE.

Premium Express Delivery (£6.95)


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

Collect from Store (£3.95)



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