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Calibre Astronut Dirt Jump Bike

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Retail Price £650.00SAVE15%
Black / Red - Collect Only

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A competition-ready, fun dirt jump bike, designed for catching serious air at your local pump track or bike park.

Calibre's Astronut is a pro level dirt jump bike, having already been showcased by Simon Pages, who put it to work in the Crankworx global series.

Designed to be a fun bike to ride, whether hitting your local BMX, pump track or skate park, it's ready to be upgraded as you go - either going to higher level kit or by fitting gears for more capabilities.

  • Ultra stiff and strong alloy frame with sliding rear brake mount
  • Manitou Circus sport forks absorb massive impact
  • Single speed gearing with half link chain
  • Front and rear Tektro hydraulic brakes


Wheel Size: 26"
Frame: 6061 aircraft grade hydroformed alloy frame with sliding brake mount
Fork: Manitou Circus Sport 100mm travel 20mm bolt through
Gear Details: Single speed with half-link chain
Chainset: Samox 170mm 24mm chromo axle 32T
Brakes - Type: Hydraulic Disc
Rims: WTB
Tyres: Schwalbe Table Top 26 x 2.25
Front Hub: Formula
Rear Hub: Formula
Stem: Alloy 40mm extension 0 degree rise 31.8mm
Saddle: Calibre Astronut Pivotal
Handlebar: Alloy 750mm
Head Set: ZS44 top and ZS56 bottom
Pedals: Alloy platform pedal
Weight (kg): 12.2
Seatpost: Alloy Pivotal 30.9 200mm
Speed: 1
Recommended Use: Cycling, Everyday Use, Weekend
Gender: Unisex
Cassette/Freewheel: 14T


Calibre Astronut Dirt Jump Bike
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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.