SKU: DRSDRA.SR16.150
MPN: DRA-SR16.150
This DRACO RACING conventional rear coil spring carries a 5.0-inch inner diameter, stands 16 inches tall, and is rated at 150 lb/in. It's built for racers and chassis builders running a rear coilover or conventional spring setup who want a predictable, linear rate without carrying extra weight. DRACO RACING has manufactured custom springs since 1969, and this part follows their design philosophy of using the fewest coils and the largest coil gap available in this class. The result is a spring that delivers full travel while shedding weight off the corners where it matters on a race car.
The spring is wound from steel and finished in a purple powder coat, which protects the surface and makes it easy to identify rate and position on the car. The conventional design uses the largest coil gap currently offered, which keeps coil bind out of the picture and supports maximum travel through the rated range. The linear 150 lb/in rate stays consistent through compression, so the chassis behavior is repeatable from corner to corner. Each spring is preset at the factory to resist sag over a season of use, holding ride height and rate where they were set. The 5.0-inch ID matches standard large-bore coilover hardware, and the 16-inch free length suits longer-travel rear suspension layouts. Pair it with the right perch and cup for a clean install.
Builders running circle track, drag, or road-race chassis reach for a spring like this when they need rear travel without adding unsprung or sprung weight. The 150 lb/in rate is a common starting point for lighter rear-weighted setups, and it stacks into a tunable package alongside matched shocks and spring cups. Check the spring against your coilover bore and travel before ordering, then browse our full suspension and components selection for the perches, cups, and hardware that complete the rear corner.
It is rated at 150 lb/in with a linear rate, meaning the rate stays consistent through compression. That predictability makes it easy to tune corner to corner. A 150 lb/in rate is a common starting point for lighter rear-weighted race setups.
The spring has a 5.0-inch inner diameter, which matches standard large-bore coilover and conventional spring hardware in this class. The 16-inch free length suits longer-travel rear suspension layouts. Confirm the ID and free length against your coilover bore and available travel before ordering.
DRACO RACING finishes these springs in a purple powder coat to protect the steel from corrosion and to make rate and position easy to identify on the car. The coating holds up to track use while keeping the spring looking clean through a season.
Each spring is preset at the factory to resist sag, so it holds ride height and rate where they were set. The conventional design uses the fewest coils and largest coil gap available in this class, which keeps coil bind out and supports full travel through the rated range.
This spring measures 16 inches tall in free length with a 5.0-inch inner diameter, per the published specifications. Those dimensions place it among longer-travel rear springs designed to work with large-bore coilover and conventional spring assemblies.
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