controller wireing

hi all,ive got a controller like this onehttps://www.ebay.co.uk/itm/72V-1000W-Electric-Bicycle-Brushless-Speed-Motor-Controller-For-E-bike-Scooter/361206968320?_trkparms=aid%3D222007%26algo%3DSIM.MBE%26ao%3D2%26asc%3D49138%26meid%3De71d866735404e7088852994b77a16c4%26pid%3D100623%26rk%3D4%26rkt%3D6%26sd%3D361635603082&_trksid=p2047675.c100623.m-1 .does anyone know what the 3speed wires are for and how to connect them?,cheers Paul.,sorry about the link,not sure how to paste it,anyhow its too a 1000watt 72volt controller.

Everything about that controller is in this thread
http://endless-sphere.com/forums/viewtopic.php?f=2&t=71128&sid=799140c0c8c8f092662f8086d6f8d1ab

The short answer is you do not need to do anything with the 3 speed connector. It will default to mid range. You can use a jumper to put it in low speed or hi speed if you are feeling brave.

Right, there are 3 wires, one for low, one for high and a ground wire. Grounding the low wire puts it in speed 1. No connections puts it in speed 2. Grounding the high wire puts it in speed 3. You might like having a switch. Otherwise you probably want to just wire it for speed 3 all the time.