Blackburn: The pull-out hose puts less stress on the valve. And you weren’t stressed to start with. Its all very well hauling a giant pump around, but all that leverage can snap a delicate valve stem right off. Our Presta-only head sits on a short pull-out hose to give more options on where you pump from and fewer chances of your rippling muscles pulling the thing clean off. We werent using that space in the barrel anyway, so the hose doesnt even affect the pumps efficiency. The mid-size barrel diameter allows for quicker inflation on MTB, CX and gravel bikes. Get loose on the trail. You can if you want but your valves shouldnt. Theres a machined Presta valve core tool right in the pumps base to keep everything snug. The thread-on Presta valve at the end of the extending flexible hose ensures that even the fiddliest of valves is held securely for inflation. Fits easily into a jersey pocket but also will nestle unobtrusively next to your bottle cage so youll never leave home without it.• Mid-size barrel allows for quicker inflation on on MTB, CX and gravel bikes• Machined Presta valve core tool in the pumps base• Thread-on Presta valve on the extending flexible hose• Fits easily in jersey pocket or next to your bottle cage