Mercury Wheels has upped their own upper end with the new M-Zero carbon tubular wheels. For climbers that want the added power of disc brakes on the descents, the new M-Zero’s use Extralite’s disc brake hubs and Sapim CX-Ray spokes to bring the wheelset weight all the way down to 1,050g.
That means a rider weight limit of just 75kg (165lbs), so they’re only for the little guys. Roll on for closeups and specs, plus a look at their very affordable new alloy disc brake wheels…
The tubular rims are 30mm deep and 25mm wide.
Extralite’s hubs are an exercise in minimalism.
Front hub weight is just 69g, rear is 145g. Available with 11-speed SRAM/Shimano or Campagnolo freehub bodies. Wheelset is $2,999.
Mercury’s shallow 25mm deep alloy wheels get a new rim extrusion, and they showcased it on their new disc brake option. It’s their own rim, and it has a rounded shape, which increases the strength by about 20% compared to last year’s more v-shaped rims. It’s also slightly wider, coming in at 23.5mm wide (18.5mm internal) at the top of the brake track and bulging to a hair over 25mm at the widest.
There’s a brake track on it, so it’s used for standard and disc brake builds. Retail is just $649. Weight is 1520g. They’re laced with Sapim Race spokes.
Front hub is available with either QR or 15mm thru axle end caps.
Rear can be QR, 12×135 or 12×142. Order it the way you need it, then get alternate axle caps separately if you need to mix it up.
