All the buyers should be DIY expert or have abilities to install it. If not, please do not buy it.

“put an electric alternator on stationary bike, so when you do physical activity, you can charge batteries.” — Mr.Adriano Siti, my Italy friend told me this idea, so this alternator coming.

This alternator is for stationary bike rear wheel (150mm rear fork),
it for charge 12V battery.

We have this alternator can charge 36V-60V, if you want this type, please click another link or contact me, thanks a lot.

This alternator come with one voltmeter, one rectifier bridge and one chain wheel for bike.
promotion of shipment：
We will send by DHL.(shipping time about 3-7 working days)
(we send the package to our shipper need 2 working days)
we cann’t change the shipping time on amazon system,
so the system shows maybe need long time but that is wrong.
we will send it as soon as possible.
If you have any question,please feel freely to contact me.