The Voyager Hyper is a $40-50 tire. While it may be a great tire, its double what you are looking to pay, so it isnt a good recommendation.

wiggle.com Cycle | Commuter Tires + 700c (622) Wheels
Road Tyres | Chain Reaction Cycles

I dont think any are folding while also 35-37mm. Schwalbe Marathon GG probably wouldnt need a spare though. I have 32mm Vittoria Randonneur II tires on a sport-tourer(light touring) bike. I love them. Reviews are that they are slow, but I havent felt sluggish with them. They are absurdly strong based on my weight and what I have loaded on the bike.

both links should take you to narrowed down results within your parameters. Wiggle is free shipping over $50 and ChainReaction is free over $100. Both sites are overseas, most everything is cheaper there than stateside, and if you need(want) any random stuff you can quickly get to $100 on chainreaction!



For what its worth, Amazon has Panaracer RIBMO tires for $33. http://www.amazon.com/Panaracer-RiBM.../dp/B00AZWWES4 they are wire bead.



Upping the budget to $40 per tire brings a lot of options for folding tires from Panaracer, Schwalbe. Conti, Vittoria, and more. But thats double what you are looking to spend, so probably not a good solution.