The multiple award-winning Calibre Bossnut is back, and its better than ever! It features a full re-design, with new tubes, geometry and a massively upgraded spec. This is an introduction to mountain biking that will have you hooked from your first downhill.
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.
Unfortunately we are not able to process faulty or warranty bike returns through our warehouse. If your bike develops a fault please take it to your nearest GO Outdoors store where we have a full workshop and trained mechanics who will be able to assist you.
Please note, this excludes Hathersage and Southport stores.
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This product qualifies for the following delivery methods
Standard UK Delivery (3-5 days) (FREE)
Delivered via Hermes. Deliveries will arrive between 8am and 8pm, 7 days a week.
Contactless delivery so your products are delivered safely to your doorstep with no signature required.
Bike Delivery (3-5 days) (£4.99)
Bike delivery is £4.99. This applies to all bikes, and these orders are upgraded to a specialist courier service.
Collect In Store (£3.95)
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.
Premium Next Day (Delivered by DPD) (£6.99)
Delivered by DPD. Orders must be placed before 6pm to arrive the next day. 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.
Next Day Delivery (Delivered by Hermes) (£5.95)
Delivered by Hermes. Orders must be placed before 6pm to arrive the next day. 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.
From £4.99 to over 200 countries worldwide. Some restrictions apply.