• Sonder Alpha 650b Dynamo Wheelset
  • Sonder Alpha 650b Dynamo Wheelset
  • Sonder Alpha 650b Dynamo Wheelset
    • Sonder Alpha 650b Dynamo Wheelset
    • Sonder Alpha 650b Dynamo Wheelset
    • Sonder Alpha 650b Dynamo Wheelset

    Sonder Alpha 650b Dynamo Wheelset


    Light & tough 650b Dynamo tubeless-ready wheels for gravel or road riding. Designed, laced and precision-built in the UK.
    • Option
    • Check availability in store

    Pre-order now for despatch from 7th June . We'll keep you up-to-date with your order progress and despatch as soon as it is available.

    • Free Delivery over £50

    • Free Returns

    Sonder Alpha 650b Dynamo is our performance disc brake wheelset built specifically for gravel and road adventure and to connect your lights or recharge your batteries. . They’ve been designed with long rides and endurance riding in mind. 

    • Disc brake specific and tubeless-ready design up 47mm road or up to 2.2” MTB tyres
    • 23mm internal width, Sapim double butted spokes
    • 120-point engagement for quick acceleration and pedalling efficiency
    • Built to last: fully serviceable and repairable with no specialist tools required

    For the rear we’ve used a 6-pawl freehub for instant acceleration and maximum pedalling efficiency. This gives 120 points of contact - just 3° of rotation between each click. With faster engagement, the wheels respond the minute you put the hammer down and save wasted watts.

    Made from a premium KLM41 (6061) alloy, we’ve been able to maximise rim strength and stiffness for a lower weight. They’re also welded and pre-taped for a tubeless-ready set up to save more weight and reduce rolling resistance.

    23mm wide the Alpha 650b wheels are optimised up to 47mm road or 2.2" MTB tyres. By using wider tubeless tyres you’ll be able to run lower pressures, giving you even better traction, improved comfort and reduced risk of pinched punctures. While they’re light, they stay super-strong because of a shorter spoke triangle.

    Sonder Juice Dynamo Hub

    The Sonder Juice dynamo hub can power your lights and keep your electronic devices charged when you are far from civilisation, when batteries and plug sockets are a distant memory. All you have to do is keep pedalling!

    The Juice is a highly efficient, low drag device with a 6V / 3W output. Suitable for road, gravel and mountain bikes, it's tested down to -20°C so you can rely on pedal power even in extremes conditions.

    We do not recommend charging your expensive electronic gadgetry directly from the hub dynamo. It provides an unregulated AC output that you will need to convert via a USB charger to provide a reliable DC current.


    Key Features

    • Wheel

      Light, wide rims increase the contact patch of tyres and reduce rolling resistance Super-stiff 15mm axle Sealed cartridge bearings mean low maintenance Covered by our 28 Day Ride Guarantee 


      Powers lights and charging packs by pedal power Tested down to -20°C Compatible with Sonder Nova and Sonder Aero wheels

    Vital stats

    Dynamo Spec

    6V (Includes connector)


    12mm bolt through M12x100mm
    100mm hub spacing
    Compatible with QR endcaps


    6 bolt disc mount

    Wheel Specs

    Alpha Rim: Tubeless-ready. Internal width 23mm. Takes 650Bx47mm road plus up to 27.5x2.2” MTB tyres, 28h
    Alpha hub: 12mm thru-axle with 6 pawl freehub
    Spokes: Stainless steel double-butted
    Sealed cartridge bearings
    Alloy free-hub body
    28 hole front and rear