Built in collaboration with Brage Vestavik, the B-Rage model adds 12mm of length to the platform and 3 extra central pins over the standard Penthouse MK5 for extra traction. Their concave shape naturally allows your foot to sink into the pedal, keeping your contact points on the bike when when things get rowdy. If they&';re strong enough for Brage, they&';re strong enough for you! Weight: 513g (pair) Platform Material: 7075 Alloy Profile: 18mm Platform: 112mm x 102mm Dish: 3mm (concave) Pin Material: Stainless Steel (11 per side) Pin Width: 4mm Pin Height: 5mm Axle Material: EN24T Steel Internals: 2 x Igus W300 bushes, single sealed bearing and inboard rubber oil seal