I understand the alloy has a bigger diameter and its a tad shorter in both the small and medium lengths and the pressure is lighter but apart from that i cannot work out if there is a difference when it comes to using the pump.
If anyone owns one or has owned both id be keen to know what they are like as a trail side pump.

one is for MTB – large volume/low pressure and one of for road bikes, low volume/high pressure

i have one of each one for mtb and one for road bike

both good

Max 90 psi on the alloy pump, so not enough for road bike tyres.
Lovely pumps.

rootes1 what size do you have? medium or small? and would it fit ok in a Camelbak mule?

I have both:

Alloy drive is chunkier but shorter and does presta or shraeder. A medium fits in my MULE no problem.

Road drive is presta only and goes to 120PSi. I have frame mounted mine onto my Allez.

Both are very nice!

ah ok thanks for that info