Ultra 900 Aluminium Frame Road Bike - Black/Grey/Yellow

€ 920.00

Designed for frequent training and sport cycling / racing (any gradient, any distance).

More details
SKU: S170333 (2160363)
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Size Guide

Available online

Delivery in 4 to 5 days

Product benefits
  1. Efficiency
    Shimano 105 11-speed drive train. New Mavic Aksium 17c wheels.
  2. Cycling comfort
    B'Twin Ultra Evo Vario aluminium frame, carbon fork, aluminium pivot.
  3. Precision
    Carbon fork. Shimano 105 direct mount front brakes.
  4. Lifetime warranty
    B'Twin provides a lifetime warranty on the frame, stem and handlebar.
    XS / S / M / L / XL
    8.9 kg
Product feature
  1. Frame
    Our new B'Twin Ultra frame is derived from Evo Vario technology. Aluminium is an ideal choice for obtaining an excellent propulsion-to-comfort ratio. The variable thickness tubes considerably reduce the weight. The cables are built into the frame. This frame is UCI-approved. Weight: 1400g in size M.
  2. Fork / suspension
    The B'Twin Ultra Evo Vario fork is used exclusively on the B'Twin Ultra Evo Vario frame. The combination of carbon and aluminium is the ideal choice for perfect synergy between the B'Twin Ultra Evo Vario frame and fork. Brake located as close as possible to the fork. Weight: 550g.
  3. Handlebar / stem / steering
    The compact B'Twin handlebar is sized to the bike. The handlebar weighs 320g in size 420mm. End-end width: XS, S 400mm. M, L 420mm. XL 440mm. 6061 T6 aluminium stem. 140g in size 110mm. XS 80mm. S, M 100mm. L 110mm. XL 130mm. The headset uses long-lasting sealed bearings and has a 1-1/8" diameter at the top and 1-1/4" diameter at the bottom.
  4. Drivetrain
    Shimano 105 11-speed drive train.Shimano 105 SS double front derailleur. Shimano 105 11-speed rear derailleur.Shimano 105 double compact chainset.
  5. Crankset / cassette
    Shimano 105 52 x 36 chainset. Crank length varies according to size of bike: XS / S: 170mm.M: 172.5mm. L / XL: 175mm. Shimano 105 11S 11 x 28. (11/12/13/14/15/17/19/21/23/25/28).
  6. Brakes
    Shimano 105 Direct Mount brakes on the fork: their dual-pivot technology offers precision and power. Stays perfectly centred thanks to DPB technology. Brakes made from cast aluminium and covered with powder paint that withstands frequent washing.
  7. Wheels
    New Mavic Aksium 17c wheels. Wider rim so you can use wider, more comfortable tyres. Height: 21mm. ETRTO dimension: 622 x 17c. Pair, without tyres: 1880g.
  8. Tyres
    Mavic Yksion tyre ensures a good connection with the Aksium 17c rim. 700 x 25.
  9. Saddle / Seat post
    B'Twin Comp Ergo Chromo saddle: chosen for its comfort and efficiency. Weight: 257g. B'Twin Competition aluminium seat post. Diameter: 31.6mm. Length: 350mm.Weight: 240g.
  10. Pedals
    Pedals not included.
  11. Accessories / equipment
    Comes with a front and rear-lighting kit and bell.
  12. Weight
    8.9kg in size M, without pedals.
Product testing
  1. Composition
    Frame : 100.0% Aluminium 6061
  2. Storage advice
    Store your bike in a dry, cool place. If riding or storing your bike in a salty environment, be sure to wash your bike after each use.
  3. Cleaning advice
    Regularly maintain your fork (clean and grease dampers), especially in winter. Take your bike to your Decathlon store's customer service workshop, which offers a free safety inspection on all new bikes purchased.
  4. Product restrictions
    Cannot take a pannier rack.
  5. Product catchline
    Created for performance, its quality aluminium frame provides the perfect balance between comfort and lightness. You'll be surprised by its versatility on all inclines and over all distances.
Product reviews
4.65 / 5
124 reviews
121 users recommend this product
Write a review
  • 900 ultra

    David (United Kingdom)
    Used for 2 to 8 weeks
    Brought this bike as an upgrade from a Triban 500se. It’s very smooth to ride and the gear changes are a world apart from the previous bike, you only have to touch the leavers and the changes are so smooth,effortlessly. I only have one gripe and that’s the saddle, 30 miles in and my back side was pleading with me to stop. I’ve changed the saddle for a selle royal respiro . Everything’s sweet now and Ian well pleased.
  • First proper road bike

    Lyle (United Kingdom)
    Used for 2 to 8 weeks
    Had this a few weeks now. Done some longer rides and it has been great...headset wasn't set up right, but some minor adjustments put it right. Must be the best value bike in its class.
  • Simply brilliant value for money

    Velocool (United Kingdom)
    Used for 2 to 8 weeks
    Bought to replace ageing Carbon Trek Ultrega. Very impressed with the way it climbs, most of the first 500k spent in the Andorra & French Pyrenees and it was a joy to ride. Very comfortable too.
    Set up in store wasn't the best, had to adjust the gears after the first ride but no big drama.
    Was unsure about rear brake picking up dirt etc, but seems fine so far.
    All my French mates rave about these bikes so as l can't beat them l joined them!
    Would highly recommend this bike
  • Excellent bike, good service

    yiming (United Kingdom)
    Used for 2 to 8 weeks
    Very nice bike
  • Fast and light (for an Alu frame)

    Craig (United Kingdom)
    Used for 2 to 8 weeks
    Very pleased with the 900AF package. The tyres provided are like butter to anything sharper than a marble though. Puncture on third ride. :(
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