Stock clutch spring

[tc1550]

Aprox how much hp tq numbers before se spring or upgraded clutch swap ?

[kd]

Bike weight, gear ratio etc?  More info may get you a better guesstimation.  That's all you can count on with no details.

[Chippitt68]

When I did my 103, made 115 foot lbs. I had to get the spring and take to tuner because it was slipping on the dyno

[tc1550]

2010 fat boy 6 speed fm 110 kit  rider is 160 lbs 50mm tb 625 lift tman cam bike has 113hp 125 tq no slip as of yet  on dyno owner rides easy / normal no burn out should se spring be put in or wait till see if it slips at all

[Rusticwater]

FWIW up in the "Sticky posts" there's a thread on clutch spring color codes that you might find interesting. Towards the end there's a chart with different spring part numbers, pressure etc.

On my 2010 FXDC I swapped out the stock "standard lite spring" for the "standard early  spring."

[jsachs1]

If you can't find the clutch springs info, let me know, as I have a chart I made several years ago of some Harley, and aftermarket.
John

[Hossamania]

I'm assuming this is it

https://harleytechtalk.com/htt/index.php/topic,34648.0/all.html