Hey bud I'm not exactly sure but it looks like you only have part of the whole assembly. It looks like the spur gear from a Robinson racing HPI FLUX Performance gen 3 slipper unit....can you show us the other side?.....or better yet check this webpage out and see if anything looks familiar!
No, you can still use it, it's just designed to handle the power of the FLUX, electric power come on a lot quicker than nitro power...I don't think they use clutches like nitros do!
---------- Post added at 6:29 PM ---------- Previous post was at 6:28 PM ----------
And if it is the gen3 spur your going to need the rest of it.
I just went through every image on google after search for
savage "steel spur"
and the only images that show a spur exactly like this one are the listing on ebay I got the images from up above, item 161026039307.
The spur you bought doesn't have the groves the slipper pad, I don't think your going to be able to use it but the link that olds97 posted has the groves for the pad...
You got me? (Scratching my head!)
I has to have some type of slipper unit to mount it or it will just spin on the driveshaft.
It weird that the people selling the spur don't offer a slipper for it!
I would just plain and simple contact the seller and ask him...because I've never used a spur like this one before with no place for the slipper pad to sit in...I'm looking around sites to find some kind of info but nothing. maybe not looking at the right place but eh, I'm trying lol...because if you would see me right now...I have a HUGE question mark over my head :\