• Wireless control unit
    In- & deflate tyres endlessly via wireless control
  • Gravaa wheelset for gravel bikes
    Ideal for bike touring and gravel riding
  • Low power consumption
    Only low human power required while inflating
See all specs
Designed for Gravel

The revolution is here

A gravel bike leads you to places on and off the paved roads. Because the surface of the trail changes throughout the ride it’s always a compromise (or gamble) which tyre pressure you need for the front and rear tyre when you go out for your gravel ride. In the end you often settle for the middle ground regarding tyre pressure. After years of research and engineering we have developed high-end wheelsets which enable you to manage your tyre pressure during your ride.

The lightweight wheels compose of carbon rims and advanced hubs, in which a miniature high-pressure pump is stored. This pump is driven by the rotation of your wheels: by you. Via an integrated clutch unit and electro-pneumatic wireless control system the pump gets only active on demand. The wheels are fully compatible with standard bikes with disc brakes. You manage your tyre pressure wireless from your handlebars. Meanwhile, all relevant information can be displayed on your bike computer or smartphone.

  • Specifications

    GRAVAA GX-30 UNLEASH YOUR GRAVEL POTENTIAL
    GRAVAA GX-30 Wheelset
    GRAVAA XC-28 DOMINATE THE MTB TRAILS
    Gravaa XC-28 wheelset
    Ideal for Bike touring, Gravel riding MTB XC riding
    Wheel size 29"(622) 29"(622)
    Brake type Disc brake only Disc brake only
    Weight 1970 g (non-boost) 1990 g (boost)
    Rim type Carbon, TLR Carbon, TLR
    Rim materials Carbon Carbon
    Rim height 30 mm 28 mm
    Rim inner width 25 mm 25 mm, 30 mm
    Tyre types Clincher - Tubeless ready Clincher - Tubeless ready
    Tubeless ready Yes* Yes*
    Tubular version
    Hub type Boost (110 mm front, 148 mm rear), Non-boost (100 mm front, 142 mm rear) Boost (110 mm front, 148 mm rear)
    Max. system weight 110 kg (rider + bike) 110 kg (rider + bike)
    ANT+
    Bluetooth
    Disc brake rotor front 140 mm disc, 160 mm disc, 180 mm disc 140 mm disc, 160 mm disc, 180 mm disc
    Disc brake rotor rear 140mm disc, 160mm disc, 180 mm disc 140mm disc, 160mm disc, 180 mm disc
    Number of spokes 28 28
    Spoke offset 2.5 mm 2.5 mm
    Spoke type DT Swiss Competition Race (1.6 mm) DT Swiss Competition Race (1.6 mm)
    Spoke nipple type DT Swiss Pro Lock 2.0 mm (aluminum) DT Swiss Pro Lock 2.0 mm (aluminum)
    Freehub system 6 - pawl freehub system, for fast engagement 6 - pawl freehub system, for fast engagement
    Freehub body Campagnolo N3W 13 speed, M-body (Shimano/SRAM 9-10-11 sp, Campagnolo 10-11-12 sp), Shimano Microspline 12 speed, SRAM XD/XDR Campagnolo N3W 13 speed, M-body (Shimano/SRAM 9-10-11 sp, Campagnolo 10-11-12 sp), Shimano Microspline 12 speed, SRAM XD/XDR
    GRAVAA GX-30 UNLEASH YOUR GRAVEL POTENTIAL
    GRAVAA GX-30 Wheelset
    GRAVAA XC-28 DOMINATE THE MTB TRAILS
    Gravaa XC-28 wheelset
    Tyre used for specs 29x1.50" tyre (40-622) 29x2.25" tyre (57-622)
    Inflation on the fly While riding While riding
    Deflation on the fly During standstill, While riding During standstill, While riding
    Tyre pressure operating range 0.5 - 6.0 bar 0.5 - 6.0 bar
    Average inflation rate 400-450 mbar/min at 25 km/h 200-250 mbar/min at 25 km/h
    Average deflation rate >200 mbar/s >100 mbar/s
    Inflation rate related to riding speed?
    Deflation rate related to riding speed?
    Average power consumption during inflation 2 - 4.5 W at 25 km/h, between 1 and 6 bar (per wheel) 2 - 4.5 W at 25 km/h, between 1 and 6 bar (per wheel)
    Average power consumption during deflation 0 W 0 W
Cross country Gravel bike Cyclocross
Cross country Gravel bike Cyclocross
Cross country Gravel bike Cyclocross

Gravaa enables you to control tyre pressure on the fly

After years of developing, prototyping and testing we are about to hit the markets with our revolutionary carbon wheelsets. Want to know more? Read more about our technology here.

Get 25% off now and pay for this wheelset in 5 installments:

  • Immediately: 10% of sales price
  • After 2 months: 10% of sales price
  • After 4 months: 10% of sales price
  • After 6 months: 10% of sales price
  • At delivery: 60% of sales price

Use the pre-order button and configure your desired wheelset.

Unleash your gravel potential