still musing over (possible) components.. i could transfer all the parts from my current ss bike today and test ride it, but i want to make this bike a bit more special, so trying to work out what options are out there. it may appear that in a current day and age we are spoilt for choice, but when you need something particular - you can't find it. e.g. lightweight ss/fixed wheels: if there was a wheelset similar to ksyrium sl's, weighing ~1.4kg it would be a no-brainer. it's possible to have light handbuilt wheels with carbon rims, but i'm not satisfied with the braking performance in wet. alloy rims are better in this respect, but with a weight penalty. mavic ellipse seems like a good option, but there is not enough thread for a freewheel. so yes, still researching what is possible, durable and reasonable. different rims/hubs/spokes for front and rear?