I just got some of these pedals. They are made of a magnesium alloy claimed to be as tough as aluminum. At 434 grams they are the lightest tough metal platform pedals I am aware of. A E Bike sells them for 60 $. You can blow 100 $ extra on a pair of titanium axles that will make you an uber cool pedal weight weenie if you want. I think I’ll pass on that, but you could lie if you want. I bought them in the lightest color.
The big question is would they pass the John Childs test, and remain on the spindle even when the bearing heads south. To find out, I took one apart, and wanted to put it back together without the bearing. However, the 607z bearing was pressed in tight enough to resist my gentle nudging, and since I didn’t have an extra bearing, I was unwilling to damage it.
No matter. This is a simple design, with the inner bearing a teflon bushing, and the outer the sealed ball bearing. Since the only thing holding the pedal on the axle is a 10 mm nut tightened against the inner bearing race, I am certain that if the bearing disintegrates the pedal is sure to fall off the spindle.
In sum, it may or may not have a really tough platform, it looks good but I haven’t smashed it enough to say. But it is not the holy grail of sealed bearing pedals, failing the “could it fall off the spindle” test. http://aebike.com/page.cfm?PageID=30&action=details&sku=PD3113
John had written earlier that most sealed pedal bearings are 686z. These are 6 mm IDx13 mm ODx5mm wide. The DMR V12’s use a larger bearing 607z which are 7 mm ID x 19mm OD x 6mm wide. These bearings cost the same as the smaller size , 10/24$, and should be stronger. A plus for these pedals. http://www.vxb.com/Merchant2/merchant.mvc?
I’ve munied on these for 4 years now (the stock platforms, not the mag ones). Having rebuilt them several times I believe the pedal would fall off it the outer bearing came apart. I’ve been singing their praises for years but I noticed the other day that I’ve significantly bent one of the axles, I didn’t notice while riding but when screwing them in to a different set of cranks it became obvious. Maybe those Ti axles sound lie a good idea. Incidentally a set of pedal protectors arte a good investment, they stop the allen key hole in the end cap filling with crap.
No, I only discovered it the other day and have been tied up partying since. Tbh I never noticed it when riding, so maybe it’s best left alone. I was trying to think if there was a way i could assemble the uni such that the pin would be bent up not down when I was standing in the hopping position, but I don’t believe there’s a way. I guess if it gets to the stage where I’m going to junk the axle I might aswell try straightening it, I know a guy with appropriate equipment. Thanks for the tip.
On the Koxx1 site they have a pair of Try-all Magnesium pedals which they claim weigh 350 grams. You should take that with a grain of salt though since the koxx1 site is known to claim that their products are lighter than they actually are.
The Qu-ax pedals you linked to, it says they are made by Welgo. They are identical to welgo Mg-1 pedals that AE Bike sells for 52 $. http://aebike.com/page.cfm?PageID=30&action=details&sku=PD1014 The trouble with these pedals is I have read of several people complaining that they fail quickly. The DMR’s have a thicker axle and a larger bearing that will last longer, for 8$ and 56 grams more. Plus you have the option of getting Ti axles for the DMR’s, making them 24 grams lighter then the welgo’s. 93 $ at AE Bike. So the DMR’s are still the lightest tough metal pedals.
So far, I have not found a shop that can compete with AE Bike’s prices. Municycle wants 40 euros for the Mg-1’s, that’s about 55 $. Not bad, but AE Bike still wins by 3 $.
