Mai Bikes GRV Carbon Allroad testCarbon gravel wheels for 699 euros?!

Jens Klötzer

 · 21.08.2025

Mai Bikes GRV Carbon Allroad test: Carbon gravel wheels for 699 euros?!Photo: Georg Grieshaber
With a rim width of 23 millimetres, the rims are relatively wide
Carbon rim wheels are now affordable: numerous professionally designed models are already available for less than 1000 euros. Our sister magazine TOUR tested the gravel wheels Mai Bikes GRV Carbon Allroad Gravel for suitability.

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In addition to a small range of complete bikes, young entrepreneur Felix Mai from Bielefeld also offers an arsenal of selected Chinese components to build your own bike. In addition to a carbon frame set and inexpensive Chinese gears, this also includes the eye-catching wheelset with a wave profile, which is reminiscent of the expensive top models from Fulcrum, Princeton or Zipp.



Work of art: The milled hub body looks very classy despite the favourable pricePhoto: Georg GrieshaberWork of art: The milled hub body looks very classy despite the favourable price

However, you wouldn't even get the latter second-hand for 699 euros. The main concession to the bargain price is that the gravel wheelset is not one of the lightest: 250 grams more than the lightest model in the test from Engage, which costs 200 euros more. On the other hand, the front wheel in particular is very stiff, which should make even heavy riders with luggage feel safe. With a rim width of 23 millimetres, the rims are relatively wide; Mai recommends tyres at least 35 millimetres wide, but also allows a width of 65 millimetres.

Advantages and disadvantages of the Mai Bikes GRV Carbon Allroad Gravel

  • Plus: very favourable, stiff
  • Minus: comparatively heavy, no further-reaching guarantee

Specifications of the Mai Bikes GRV Carbon Allroad Gravel

  • Price per set: 699 Euro
  • Variants: Shimano HG, SRAM XDR
  • Scope of delivery: Rim tape
  • Warranty/Crash Replacement: 2 years
  • Recommended tyre width: 35-65 millimetres
  • Weight limit: 110 kilogrammes
  • Number of spokes front/rear: 24/24

Measured values

  • Rim width x height/inner width: 29x43-50/23 millimetres
  • Aerodynamics at 45 km/h: 223 watts*
  • Weight f/h: 778/897/1675 grammes
  • Lateral stiffness f/h: 60/45 N/mm

TOUR test grades for the Mai Bikes GRV Carbon Allroad Gravel

  • Aerodynamics (30 %): 7 out of 8 possible points - Note: 1,7
  • Weight v + h (30 %): 5 out of 8 possible points - Note: 2,7
  • Lateral stiffness at the front (15 %): 8 out of 8 possible points - Note: 1,0
  • Rear lateral stiffness (15 %): 5 out of 8 possible points - Note: 2,3
  • Acceleration (10 %): 4 out of 8 possible points - Note: 3,0
  • Overall grade (100 %): 2,1

*Theoretical pedalling power required to overcome the air resistance at 45 km/h, measured in a wind tunnel with a pedalling dummy leg

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Jens Klötzer is a qualified industrial engineer and TOUR's expert for components of all kinds: brakes, gears, wheels and tyres - Jens puts everything through its paces. He collects historic racing bikes and owns both a modern time trial bike and a titanium gravel touring bike. When travelling, he likes to explore unknown roads in Eastern Europe - on wide but fast tyres.

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