Originally Posted by
Duke of Kent
A couple of tech questions for a guy returning to the road scene after a long layoff.
1) DA 7800 or 7900 chainrings: Do they work on any normal 130mm BCD spider? I use Cannondale Hollowgram cranks on all my bikes, have another set ready to go for this one, and want to confirm compatibility before I purchase.
7800s work for sure. 7900s should be fine. i use 7900s on specialized cranks. the arms will be the bigger issue more than the spider. i have hollowgram arms (great!) i use for MTB--they flare a bit more than specialized arms.
7900 rings are fantastic. noticeably stiffer if you take time to do a comparison (few people do). no, not stiffer in terms of power transfer, but stiffer when front shifting under load. that is where we experience flex.
Originally Posted by
Duke of Kent
2) Rim width: 23mm? 25mm? 27mm?
3) Rim depth: 38mm? 40mm? 50mm? 60mm?
4) Tire width: 23mm? 25mm? 28mm?
personal call, and for me the brand is relevant, but i'd go ~50-60mm deep (404s) and 23s. you're light; the width of the tire is not really a factor and is, in some cases, a penalty.
Originally Posted by
Duke of Kent
I'll be riding and racing on the road whenever I'm not racing my MTB. I live in VA during the school year, travel out west to CO during the summers. 65kg and I go up hills pretty well.
yep...racing....i think you want something 404-esque. you descend what you climb. not sure what your power is like but as a racer even if you're in a pure HC it's not until at least 5% that weight is a thing--and quite possibly 6, 7% or more if you are strong.