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89-05 Mazda Miata BC Racing Coilovers

BR Series Coilovers

The BC Racing BR series coilovers are the perfect choice for street driving with a dash of weekend warrior track action. Featuring easily accessible adjustment knobs and separately adjustable ride height, the BR series makes adjusting and maintaining your performance coilover system easier than ever. Ride height is independently user adjustable so you can dial in the exact look to reflect your driving style and performance needs. BC’s patented concave lower locking ring keeps all adjustments locked in and ready for precise predicable feed back in any scenario. BR series coilovers provide a strong, complete and attractive coilover system at a great price.


  • Features and Specs:
  • Mounts: (F) Rubber (R) Rubber
  • Spring Rates: (F) 8kg/mm (448lbs/in) (R) 6kg/mm (336lbs/in)
  • Fixed cup/locking collar design
  • Rubber inserts keep the noise at a minimum.
  • 30 levels of damping force adjustment (compression/rebound)
  • Fully threaded shock body for height adjustment
  • Clicking adjustment knobs for added tactile feedback
  • Fully rebuildable
  • 1 year warranty against manufacturer defect
  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
BR Series Coilovers BR-N-04-RS $1,244.00 $995.00 Usually ships in 2-3 weeks
ER Series Coilovers

The ER series is BC’s newest and most advanced coilover design to date. ER series coilovers feature large external front and rear fluid reservoirs with separate adjustments for rebound and compressions. An advanced twin piston shock design separates the ER series from rest of the pack, with pistons in both the shock body and the external reservoir for pinpoint accuracy. The external reservoir system holds dampening fluid separate for the main assembly, allowing more precise and repeatable shock feedback without overheating. The BC Racing ER series coilovers represent the absolute ultimate in suspension versatility and adjustability for the serious racing enthusiast.


  • Features and Specs:
  • Mounts: (F) Pillowball (R) Pillowball
  • Spring Rates: (F) 8kg/mm (448lbs/in) (R) 6kg/mm (336lbs/in)
  • Dual piston design (one in reservoir, one in shock body)
  • Fixed cup/locking collar design
  • 30 levels of rebound adjustment through shock body
  • 30 levels of compression adjustment through external reservoir
  • Fully threaded shock body for height adjustment
  • Clicking adjustment knobs for added tactile feedback
  • Fully rebuildable
  • 1 year warranty against manufacturer defect
  • FITMENT:
  • Mazda Miata 1989-2005
Description Part # MSRP Price Inventory  
ER Series Coilovers ER-N-04-ER $2,313.00 $1,850.00 Usually ships in 2-3 weeks
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©2014 JSC Speed Inc.
All Rights Reserved.

510 Hyde Park
Doylestown, PA
18902

Tel: 215.489.2820
Fax: 215.489.2826