Before I found out about the transfer head, I had a really hard time pumping up my tires. The included Presta adapter does not make a very solid connection with the valve so you'll be pumping and there will be a ton of air leak unless you really push the pump hard against the valve. I literally went through an entire charge just to pump up one tire because I had such a hard time trying to make a good connection.
It wasn't until I read Keith's review on 1/4/2026 that I looked into using the transfer head, which, as he describes, is a screw-on Presta head. The key is the screw-on portion which, when combined with the hose extension, now allows the pump to make a solid connection with the valve, no longer resulting in loss of air during the pumping process. Now the product works as intended, but the instructions need to be way clearer to explain this.
I've used this maybe a dozen times, so this is more of a first impression review. I'm a road rider. I haven't swapped out my flat bag CO2 cartridges yet, but that's my intent.
So far I've been using it to inflate my tires at home. The instructions warn you to start the pump before attaching it to a partially inflated tire. It's a little awkward trying to connect the running pump, so I deflate the tires and start from near zero psi every time. It takes less than a minute to inflate a flat 32c road tire to exactly 60 PSI. The first few times I verified the accuracy of the pump's own measurement with my fancy digital gauge. It's spot on.
A number of people have noted that these pumps get very hot. At least with road tires and the shorter inflation time, that has not been my experience. Yes, it gets warm, but nothing close to hot. Battery charging time is super fast - seems like about an hour from a low battery state.
Overall this is a very nicely made!
Magicshine needs to explain how its products work. Both the instructions in the box and website are vague and unhelpful. It took scanning through YouTube videos and customer comments to uncover the secret to what is labeled as a 'transfer head' in the instruction manual. It's actually a screw-on Presta head to attach on the end of the short 'air tube" that is described as being helpful in tight situations. In my case, it is the only way to fill my tires successfully. The short, stubby rubber Presta adapter proved to be totally worthless because it couldn't create a complete seal on the valve. Now that I am squared away, the pump works great.
While I've used a Lezyne tubeless pump for years and it *mostly* worked ok, I would always come across stubborn tire/rim combos (notably with gravel or mountain bikes) that just wouldn't seat the bead.....then it would be off to the bike shop where they would mount it in a matter of seconds with this tool and compressed air. Finally decided to bite the bullet and get one (already had a small DeWalt air compressor), and it works like a champ. I've had no issues with presta or shrader valves, and removing the valve core to mount stubborn tubeless tires works very well. As an added bonus, just filled up my car tires as well....no more having to blow out my triceps pumping those up anymore. If you have an air compressor, change out tubeless tires somewhat often and have issues with mounting, you need one of these. After a few $20 trips to the bike shop to get tires mounted, it starts to pay for itself.
