Sonder Black i27 Carbon Trail Wheelset
£849
Sonder Black i27 are our carbon performance XC Trail wheelset. Designed to maximise speed over rough terrain and improve climbing efficiency, ultimately moving you faster for longer.
They're built to race; eating up the terrain, XC races, local off-road and post-work blasts. Designed, laced and precision-built in the UK.
- Unidirectional carbon 25mm asymmetric low-profile rims with Sapim spokes
- Disc brake specific and tubeless-ready design for 2.2-2.5 tyres
- 120-point engagement for quick acceleration and pedalling efficiency
- Super lightweight at 1600g a set
We’ve used a super light rear hub with a ratchet drive mechanism that has a 36-point engagement, so the freehub is ready to drive forward with every 10° of rotation. That means there's no lag between you pressing on the pedals and getting drive to the rear wheel. And the more you push the more engaged the drive is and its not affected by any flex in the hub - this is especially important on steeper climbs and when the going gets rough!
Our unidirectional carbon rims tied with Sapim spokes make for super strong wheels at just 1600g a set. Make the most of the weight savings with confidence they'll be able to handle the rocks and roots when the trail drops away into singletrack.
The i27 Black's natural habitat is to race fast over rough ground, roots and rocks, but they're also an ideal upgrade to your setup if you just want a speed boost on weekend off road rides.
A lightweight wheel is a game changer when it comes to acceleration, the lower distribution of weight at the rim equals a lower moment of inertia and less effort required to spin the wheels up to speed.
MADE IN BRITAIN
We lace, build and finish all our wheels in our Nottingham factory, with each one getting a full quality control inspection. We’ve brought the build process in house from overseas to enable us to produce something truly special. We can oversee the whole construction of our wheels and keep quality consistent, production efficient and reduce the impact on the planet by not shipping boxes of wheels around the world.
Features
Key Features
- 36 point hub engagement (10°), giving huge engagement area and no chance of slipping
- 30mm external tubeless compatible rims
- 6 Bolt disc mount
- Proven Sapim spoke for a strong build
- Fully sealed hub bearings for longer lifespan and low maintenance
- HG, XDR and Microspline freehub compatibility
- Covered by our 28 Day Ride Guarantee
Vital stats
Weight
1,600g
Tyre Compatibility
2.2 - 2.5, tubeless compatible
Rims
Diameter: 29"
Internal width: 27mm
External width: 32mm
Rim depth: 25mm
Material:Carbon Raw UD finish
Weight: 330g
Hubs
36-Point 10° splined system with fully sealed cartridge bearings
12mm internal rear axle
6061 Alloy Body
6 Bolt Disc Mount
Spokes
Sapim spokes
28 front, 32 rear
Axle Size
Front: 110mm x 15mm bolt-through
Rear: 148mm x 12mm bolt through
Sustainability and Product Care
Where it is made
All our wheels are assembled here in the UK at Alpkit HQ.
Our wheel-building machine can lace a wheel in just 1-3 minutes! The skilled hands that lace and finish the wheels can put 30 pairs of wheels through the machine in a day.
The wheels are built across two machines: the lacing machine and the truing machine. The lacing machine learns the rim dimensions, spoke count, location of the valve hole and angle of the nipple driver. The result is an evenly tensioned wheel. The truing machine tensions spokes, working towards pre-defined tolerances.
Reducing our carbon footprint
Building wheels in the UK massively reduces shipping volumes. By not shipping wheel boxes around the world – or, more specifically, boxes full of fresh air – we're reducing their impact on the planet.
28 Day Ride Guarantee for full Sonder Bike builds and Wheels
If you don’t love your Sonder bike or Sonder wheels you can send them back for a no-quibble refund within 28 days.
Alpine Bond
Our wheels are covered by a 3 year Alpine Bond.
If one of our products does not meet your expectations upon delivery, or if during its lifetime does not live up to the demands placed upon it, please return it to us for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction. If it’s your fault then we will help out the best we can. Alpine Bond
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Standard delivery to UK addresses is free over £30.
Next Day deliveries will be shipped same day if you place your order before 2pm Monday - Friday.
If you are not happy or have changed your mind, you can return your unused product within 123 days of placing the order for a refund.
Simply return it to us, free of charge, with all the original packaging.