Progressive · New
Progressive 12-1203Bg Shock-Ps30
MPN 12-1203B · Store SKU pgr12-1203B
Supplier stock checked 11/8/2026, 6:58:12 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
With shock and fork spring fitments all the way back to 1949, Progressive Suspension likely has the suspension setup you need for your restoration, AHRMA racer or vintage machine. The 12, 13 & 14 Series dampers are sold as damper sets and can be mated to a number of springs to properly tune for your application. Shock Only, PS30
Manufacturer fitment & guides
Check 12-1203B against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y