Yes Solex those are the mounts. In my experience sh*t can the 2 bolts Staton ships to mount the lower support strut arms. Go to Ace and buy SS bolts to use. Get them just the right length to be able to put a small lock nut on inside of the frame. You'll find on the cassette side that the nut will interfere w/using the smallest cassette because of clearance issue. No big deal to me I always only use the bigger gears anyways so it's no big deal to me. Because the engine supports pivot in lowering and raising the motor off of the tire those lock nuts keep the bolt from coming out/unscrewing. The Staton bolts, had one brake on me 20miles from home and that sucks. Thankfully I had a tie rap to use on it to barely hold the support arm in place. I had to feather the throttle all the way home but made it.