Explorator GCR40 Wheel Specs

Intended use Performance road / performance gravel
Total set weight 1.884 gram   (1-3% tolerance)
Front wheel weight 861 gram
Rear wheel weight 1.023 gram  
Tyre compatibility Hooked bead Clincher (wired/foldable) / tubeless  
Recommended tyre width 26C - 32C  
Minimum tyre width 23C  
Maximum tyre width 40C  
Maximum rider weight 130 kg   
Brake system Disc brake only  
Warranty Lifetime*  
Crash replacement Lifetime  
 * Registering your wheels after purchase will extend your warranty to lifetime warranty
Rims Front Rear
 Rim color Anodized matt black Anodized matt black
 Rim material Niobium alloy with T10 heat treatment Niobium alloy with T10 heat treatment
 Rim height 40mm 40mm 
 Rim size (ETRTO) 700C / 28" 700C / 28"
 External rim width 24.5mm 24.5mm 
 Internal Rim width 21mm  21mm 
 Rim type Hooked Clincher/tubeless Hooked Clincher/tubeless 
 Tubeless (ready) Yes* Yes* 
 * Tubeless Tape is already fitted to the wheels

Hubs Front Rear
Hubs Ere Iona  Ere Iona 
Hub color Anodized Black Anodized Black 
Hub material Alloy Alloy 
Bearings 2 x SS6902 Industrial 4 x SS6902 Industrial
Engagement system   4-pawl
Compatability   Shimano/SRAM/Campagnolo
Axle System TA 100 x 12mm TA 142 x 12mm 
Brake Interface AFS/Centerlock AFS/Centerlock


Spokes Front Rear
Spoke Sapim CX Leader Sapim CX Leader
Spoke count 20 24
Spoke type Straightpull Aero Straightpull Aero
Spoke length mm 285/283 279/277 
Nipples Sapim Polyax Brass Sapim Polyax Brass
Nipple color Black Black
Nipple length 16mm 16mm
Spoke tension Min 1030Nm-Max 1270Nm Min 1030Nm-Max 1270Nm