I recently replaced my hubs with hope pro II hubs. Front 20mm and rear is a 10mm bolt on. They are working quite nicely and saved me a bit of weight also. All good but the rear bolts. Anyone else see a problem with the bolts that these hubs come with? I personally think that they're a bit short and I can't find an allen key to fit the bolt right. Seems like they'll be stripped out in no time. Are there any replacement bolts that are better?