Originally Posted by
therh
I currently have a pair of stock ALX wheels that are on their last leg, the are in need of BB and I am looking to replace them with something rebuild-able. I do not want to spend a ton on wheels as I am looking to buy a new bike later this year.
Wheels are one upgrade that is super easy to transfer to a new bike. Spend $350-500 and they are likely to be better than whatever comes on your new bike. So the new stock wheelset (when you buy a new bike) then goes on the old bike or serves as a back-up. The investment can easily outlive your current bike (note: you might consider buying 11sp to future-proof a bit).
The Fulcrum and Aksium suggestions are spot on (if you want to stay under $300). Ribble carries the new Fulcrum LG's (23mm wide rather than 20.5mm), and you could afford the Racing 5's.
But you've mentioned 'rebuildable' once or twice. If that's a major focus - you might consider the B-dop buildkit (or similar from bikehubstore) and labor from a local shop.
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'14 carbon Synapse - '12 CAAD 10 5 - '99 Gary Fisher Big Sur