Cube AMS 29 Race review

Sets a surefooted, plush standard for smoothness and value

Our rating 
4.0 out of 5 star rating 4.0
GBP £2,249.00 RRP | USD $3,583.78

Our review

A phenomenally smooth, surefooted and high value trail tamer that gets better the further you go
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If you’re after a trail bike that’ll flatter both your skill and your fitness on long-haul epics and leave others scratching their heads as you saunter over techy sections that have left them stalled, then look no further than Cube’s top value, super-smooth big-wheeler.


Ride & handling: Trail smoothing cruiser designed for deceptively fast and fun long distance efficiency

Cube have used the top-corner-rocker-link AMS platform for years as a simple and effective way of joining the suspension dots. Add a top-of-the-range, low leverage Fox shock, big tyres and wide handlebar, and there’s almost nothing that’ll stop the 120mm-travel 29 Race.

It’s the unshakeable steering authority of the 750mm-wide, flat carbon fibre bar that dominates initial ride feel. The monster width means the tips move more for a given change in angle at the wheel, making it easier to put in small, traction saving/line nudging movements. 

It also makes it harder for rocks and roots to pull you off line, giving you more control in technical situations. A mid-length (80mm) stem also means a less twitchy steering feel than a short one. It does tend to tuck under suddenly if you’re braking hard into a downhill corner if you’re not careful though, so think lazy rather than lairy.

Squeezing the long-stroke Kashima-coated shock with such a big-leverage linkage means an outrageously smooth ride at the rear. The result is that the Cube glides across rocky, rooty sections that chip the forward momentum of smaller wheels or firmer suspension setups. In fact, ground connection is so consistent and hovercraft-like we regularly thought we’d punctured the rear tyre. 

This super-easy shock movement does come at a price, though. Even with a full range of Adaptive Logic low-speed compression damping settings on the RP23 shock it takes an experienced tuner to stop the suspension squelching through its stroke with every hard pedal dig or larger impact. 

Use the triple chainset to keep revs high and pedal pulse low and what the AMS will winch itself up is astonishing. Because it’s so smooth and encourages efficient spinning rather than angry stomping it also reduces fatigue on longer rides. While it tends to be gapped on the early climbs it nearly always spins up the last one in the lead. 

Frame & equipment: Simple but usefully stiff chassis; excellent value, control friendly componentry

The AMS 29’s uninterrupted front triangle gets big hydroformed and anodised pipes for strength and scratch proofing, with a tapered head tube and press-fit bottom bracket for oversized stiffness. A DT Swiss RWS screw-through axle stiffens up the chainstays, so despite a skinny looking, open-basket rocker linkage it’s usefully tight on the trail. There’s room for a conventional down tube bottle mount and loads of space round the rear tyre, too. 

Kit is all top quality: a Kashima-coated Fox RP23 shock and RLC fork, SRAM 3×10 transmission and Formula R1 brakes with alloy spider rotors to match the smooth rolling, Schwalbe-shod DT Swiss wheels and other blue trim. A flat carbon bar completes a medium-weight but undoubtedly top value bike. 

This bike was tested as part of What Mountain Bike magazine’s Bike of the Year shootout. You can read the full feature in this month’s mag, in shops now, and available on Apple Newsstand and Zinio.

Trail Bike of the Year preview

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The testers reflect on this year’s crop of bikes

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Product Specifications


Name AMS 29 Race (12)
Brand Cube Bikes

Description 17, 19, 21, 23in sizes
Seat Angle 73.5
Front Wheel DT CSW MA 2.0 29er wheelset
Tyres Schwalbe Nobby Nic Evolution Pacestar Kevlar, 2.25in
Wheelbase (in) 44.5
Top Tube (in) 23.5
Standover Height (in) 29.7
Seat Tube (in) 18.5
Chainstays (in) 17.7
Bottom Bracket Height (in) 12.9
Weight (lb) 28.38
Weight (kg) 12.87
Stem Syntace F109, oversized, 80mm
Shifters SRAM X0
Saddle Selle Italia X1
Bottom Bracket SRAM Press Fit
Rear Shock Fox Factory Float RP23 boost valve, Kashima coat
Rear Derailleur SRAM X0
Head Angle 70
Handlebar Syntace Vector carbon low rider, 750mm
Grips/Tape Cube ultralight screw-on race grip
Front Derailleur SRAM X0
Frame Material HPA 7005 advanced hydroform ERC triple-butted alloy
Fork Fox Factory 32 Float 29 FIT RLC, 15QR, taper, 120mm
Cranks SRAM S1400, 44-33-22T
Chain SRAM 1070
Cassette SRAM 1070, 12-36T
Brakes Formula R1X, 180/180mm rotors
Rear Wheel DT CSW MA 2.0 29er wheelset