Funny ideas of double or HD clutch spring.

[DreamV4]

OEM springs are about twice stronger than they need to be because manufacturers know about them getting weaker every year. Obviously manufacturers want them to last many years. After about 20 years or so OEM springs get down to 50% strength and start slipping. If you install extra new spring, you'll get 150%, which is not needed. Same about HD spring. I am not sure if "HD" springs are really stronger because standard spring works fine for 20 years.
I was always buying cheapest springs on ebay for all my bikes.

 

[Mr. Max]

Yeah, plate wearing and warpage don’t affect it at all. I feel sorry for ppl who have bought bikes ”fixed” by you.

 

[one2dmax]

Spring tension in no way loses half it's resistance lol.

 

[DreamV4]

Spring tension in no way loses half it's resistance lol.

I an pretty sure Vulcan 1500 spring has 4mm specs, I measured old one, it was about 2 mm, don't know about strength, I was just trying to explain.

 

[Pighuntingpuppy]

Curious...how did you measure the resistance? I get you measured the height....but how did you measure the resistance?

 

[DreamV4]

Curious...how did you measure the resistance? I get you measured the height....but how did you measure the resistance?

I jump on it.