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    Ultra 500 AF GF Road Bike (Disc Brake)

    € 1,078.80

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

    More details
    SKU: S172213 (2308875)
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    Size Guide

    Delivery in 7 to 8 days

    Our e-commerce is suspended for a transition period. We expect to be back soon!
    Product benefits
    1. Efficiency
      New MAVIC AKSIUM wheels (width 17 C) with 12x100 thru-axle (rigidity)
    2. Cycling comfort
      6061 T6 aluminium frame with varying thickness for less weight and more comfort.
    3. Precision
      Precision
      Shimano BR-R305 mechanical disc brakes with flat mount fastening.
    4. Lifetime warranty
      Lifetime warranty
      B'TWIN offers a lifetime warranty for the aluminium frame on this bike
    Details
    • Sizes
      XS / S / M / L / XL
    • Weight
      9.6 kg
    Product feature
    1. Frame
      Our new B'Twin Ultra frame is derived from the Evo Endurance concept. It has a special geometry for increased comfort on long sports rides. 6061 T6 aluminium with variable thicknesses to save weight and gain comfort. UCI-approved frame. Frame for wheels with a 12 x 142 thru-axle for a more rigid rear triangle. Press fit 86 bottom bracket. "Flat mount" callipers for better integration with the frame. DI2 compatible. Weight: 1470 g in size M.
    2. Frame (continued)
      Frame designed with varying thickness to save weight and gain comfort: Seat tube thickness: 2.25mm/0.9mm/1.3mm Top tube thickness: 1.6mm/1.1mm/1.4mm Down tube thickness: 1.6mm/1.2mm/1.5mm Chainstay thickness: 1.3mm/0.9mm Seatstay thickness: 1.4mm The top tube is hydroformed for style and to give the right thickness. External cables for easier bike care and maintenance.
    3. Fork / suspension
      Weight: 432 g New carbon monocoque fork with HR (high-resistance) and IM (intermediate modulus) fibres, mounted exclusively on the B'TWIN ULTRA Evo Endurance frame. Fork for 12x100 thru-axle wheels for more rigidity. For optimised integration, the brake caliper is flat mount. Fork with 1 '1 / 2 and 1' 1 / 8 conical spacer that offers greater rigidity as it is thicker at the bottom without additional weight.
    4. Handlebar / stem / steering
      B'TWIN Endurance frame, ERGO oversize aluminium handlebar End-to-end width XS, S 400 mm M, L 420 mm XL 440 mm B'TWIN Endurance oversize aluminium stem Length XS 80 mm S 90 mm M 100 mm L 110 mm XL 120 mm
    5. Drivetrain
      New Shimano SORA R 3000 drivetrain Shimano SORA R 3000 front derailleur Shimano SORA SS rear derailleur (32 teeth maximum) Shimano SORA R 3000 double chainset (50 x 34)
    6. Crankset / cassette
      Shimano SORA R3000 50/34 double chainset Length XS, S 170 mm M 172.5 mm L, XL 175 mm SHIMANO SORA 9 S 11/28 cassette 11/12/13/14/16/18/21/24/28
    7. Brakes
      Front and rear Shimano BR-RS305 disc calipers (flat mount)
    8. Wheels
      MAVIC AKSIUM Disc wheels (thru-axle) Material: S6000 aluminium Specifically designed for disc brakes (6 holes) Spokes: 24 at front and rear Lacing: front and rear double crossed for greater stiffness Weight: 2,045 kg
    9. Tyres
      Mavic 700 X 28 tyres 120 tpi nylon body. Nylon protection for puncture protection. Simple Compound highly grippy rubber. Max. pressure: 7.7 bar /110 psi.Weight: 245g.
    10. Saddle / Seat post
      Aluminium Endurance seat post. 27.2 mm diameter for greater comfort Length: XS: 250mm S: 300 mm M/L: 350 mm XL: 400 mm BTWIN Endurance saddle
    11. Pedals
      Platform pedals.
    12. Accessories / equipment
      Comes with a lighting kit and bell.
    13. Weight
      9.6 kg 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 clean and lubricate your drivetrain. We recommend using our B'Twin All-in-One bike care product. Be sure to take your bike to the customer service desk at your local Decathlon store to get a safety check, offered free of charge with the purchase
    4. Product restrictions
      Cannot take a pannier rack.
    5. Product catchline
      A bike designed for endurance, with a special geometry that's ideal for long distances. Equipment reliability: Shimano SORA drive train and mechanical disc brakes.
    Product reviews
    3.5 / 5
    1 review
    1 user recommend this product
    Write a review
    • Could be so good with a few changes!

      15/01/2018
      Fil (United Kingdom)
      Used for 1 week or less
      A good price and spec but misses the mark for what could have been a great adventure travel or cyclocross bike. No ability for panniers was a big ommission and the bike should have the ability to take wider and chunkier tyres for better gravel and mud use. Rest of the bike is spot on although price is looking a bit high now compared to similar spec bikes from the big brands. Sonder adventures bikes have this one beaten on price and spec easily.