[yard man]

How many inches (approximately) will a springer compress with the engine mounted, and no inner helper springs ? Are those helper springs necesary?

Any help is appreciated.

 

[stratocaster]

Don't know the compression answer but mock it up and see.I'd run the inner springs.Keeps fork from being a pogo stick and you'll bottom without them.What springer and what bike?I'm looking at adding a shock absorber to my H.D. springer tho not the old harley shock. -Strat.