Bump Springs




Round Wire Bump Springs
Swift linear bump springs offer the highest measurable shock stroke in the industry. Unlike inefficient rubber and foam bump stops, Swift bump springs are fatigue and heat resistant.

Our bump springs are an essential upgrade for performance minded individuals yearning to maximize suspension tune ability. And, to keep things simple, our engineers developed a proprietary retainer which seamlessly fits all spring rates.

All the specs below are subject to change without any notice.



LINEAR RATE

Part # Spring Rate OD Length Stroke
lbs/inch inch inch inch
SBS0400 400 2.0 2.25 1.12
SBS0500 500 2.0 2.25 1.27
SBS0600 600 2.0 2.25 1.11
SBS0700 700 2.0 2.25 1.20
SBS0800 800 2.0 2.25 1.01
SBS1000 1000 2.0 2.25 1.00
SBS1200 1200 2.0 2.25 0.89
SBS1400 1400 2.0 2.25 0.83
SBS1600 1600 2.0 2.25 0.76
SBS1800 1800 2.0 2.25 0.87
SBS2000 2000 2.0 2.25 0.84
SBS2500 2500 2.0 2.25 0.73
SBS3000 3000 2.0 2.25 0.72
SBS4000 4000 2.0 2.25 0.71
SBS5000 5000 2.0 2.25 0.62
SBS6000 6000 2.0 2.25 0.50
SBS7000 7000 2.0 2.25 0.49
SBS8000 8000 2.0 2.25 0.53


PROGRESSIVE RATE

Part # Spring Rate OD Length Stroke
lbs/inch inch inch inch
SBS1000V 500-1000 2.0 3.00 1.18
SBS1200V 600-1200 2.0 3.00 1.06
Flat Wire Bump Spring
In order to meet the needs of individuals whom aggressively utilize bump stops, Swift has developed another unique bump spring solution.

Our newly developed flat wire bump spring features zero side shearing upon full compression, and is optimized for an even greater amount of shock travel (compared to round wire springs).

All the specs below are subject to change without any notice.



LINEAR RATE

Part # Spring Rate OD Length Stroke
lbs/inch inch inch inch
SBS0300S 300 2.3 2.25 1.47
SBS0400S 400 2.3 2.25 1.35
SBS0500S 500 2.3 2.25 1.21
SBS0600S 600 2.3 2.25 1.21
SBS0700S 700 2.3 2.25 1.31
SBS0800S 800 2.3 2.25 1.12
SBS0900S 900 2.3 2.25 1.21
SBS1000S 1000 2.3 2.25 1.18
SBS1100S 1100 2.3 2.25 1.07
SBS1200S 1200 2.3 2.25 1.13


PROGRESSIVE RATE

Part # Spring Rate OD Length Stroke
lbs/inch inch inch inch
SBS0800VS 400-800 2.3 3.00 1.58
SBS1000VS 500-1000 2.3 3.00 1.46

BUMP SPRING RETAINERS
(Sold individually)



For OD 2.0" Bump Spring

PART NUMBER Shaft Diameter
BSR500 1/2"
BSR551 14mm
BSR625 5/8"


For OD 2.3" Flat Wire Bump Spring

PART NUMBER Shaft Diameter
BSR500S 1/2"
BSR551S 14mm
BSR625S 5/8"


Penske Bump Cap for OD 2.3" Flat Wire Bumps

PART NUMBER
SBCPS