I got a couple of samples of Wellgo Quick Release pedals in the mail last week, with pedal body no. QRD-5219. Unlike most of the other QR hub bodies I’ve seen, this one seems pretty good.
I wanted to check if it was possible to install two quick-release mechanism at the same time, in a Spirit double hole crank, without any modifications. Unfortunately I received one right and one left pedal only, so could not install both on one crank to physically check. The below is based on measurements.
As many of you know there are two QR mechanism types that screw into the crank: one with a button, and one without. See the attached photos. The “button” style requires about 5.5 mm space on the side of the pedal hole when installed, but much more to screw it in. So there is no room between the pedal holes to screw two QR mechanisms of this type in at the same time.
The “circle style” requires about 8.75 mm space on the side of the pedal hole. It has no button but due to the thicker body you cannot screw two in at the same time.
If you combine both styles, the two require at least 14.25 mm room between the pedal holes. That means that both should fit on the 110/137 and 137/165 Spirit cranks, but not on the others.
So for the 110/137 and 137/165 lengths it likely works; for the others I don’t think it will work, unfortunately.
I can’t provide an opinion on the strength or durability of the pedals because I haven’t tried them. Based on visual inspection, the QR mechanism looks like it will be good for general road or possibly XC Muni use, but not strong enough for drops or aggressive riding. Personally I’d see these as most useful if you frequently take pedals off for storage or transportation.
I’ll leave them on my muni for a while to see how they test out.
Attached are closeups of the two styles on a geared KH24.
Kris
