Hey
What’s the benefit of having a rear wheel deeper than the front?
I’m trying to decide whether to go for SRAM 60 front and rear or SRAM 60 / 80 combo. They’ll be used on my Felt AR4 as tri race wheels but also for road events - not road races but longer charity type rides that we have in Australia.
Wouldn’t have considered race wheels before, but a nice work bonus on top of a sub 3 hour HIM ride means I can justify them to myself 
So now I’m after the best choice. SRAM seem a good bang for the buck here in Australia compared to HED & Zipp.
Nigel
the deeper the wheel, the faster it is. the only downside is handling difficulty in crosswinds.
on the rear, a deep wheel does not cause any handling difficulty
thus you should run the deepest wheel you can, which is a disc. the only reason some people DONT run a disc is
- cost
- wrongly thinking it will be hard to handle
- wrongly thinking they are too ‘heavy’
you can get a wheelcoverfor a SRAM80 to turn it into a disc if you want
search some of Rappstar’s posts on the physics of having a deeper wheel in back.
IIRC, the front wheel has a bigger moment, because it’s farther out from the center of gravity, so two equal sized wheels produce a front wheel that has more effect on you. By deepening the rear wheel, you cause the rear wheel to have a bigger effect, which, since it doesn’t steer, is not a big deal, actually it’s like a keel in sailboating, and the effect of the front wheel is lessened.
IOW, get a wheelset with a deeper rear wheel. 1080/808 for Kona, disc/1080 for all other races except Alp d’Huez triathlon.