It's presta only, but it does everything right: small diameter to reach decent pressures without valve stem ripping force, long enough to still move a reasonable amount of air with each stroke, minimal un-swept volume and truly beautiful internal finish for efficiency, simple design with little to go wrong.
It's a push-on and lock with lever design which i find much faster than the fiddly lezyne screw-on tube system, and shouldn't unscrew your valve cores.
how are you planning to carry it? Jersey pocket, bag, or frame mount?
I think the best bag pump is the Specialized air tool road. http://www.evanscycles.com/products/specialized/air-tool-road-pump-ec027073
It's presta only, but it does everything right: small diameter to reach decent pressures without valve stem ripping force, long enough to still move a reasonable amount of air with each stroke, minimal un-swept volume and truly beautiful internal finish for efficiency, simple design with little to go wrong.
It's a push-on and lock with lever design which i find much faster than the fiddly lezyne screw-on tube system, and shouldn't unscrew your valve cores.