SportFit, Inc.

MERRITHEW Reformer Spring


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MERRITHEW REFORMER SPRING


The 25% Reformer Spring may be purchased individually to replace a 100% spring for Reformers with traditional spring configurations. Its lighter resistance is often preferred for arm or rehab exercises. When combined with a 50% spring it also offers a resistance option between the 50% and 100% settings.

Details

  • Replace the springs on your Reformer every two years to ensure maximum performance and safety of your equipment at all times
  • Our springs are custom crafted using the finest quality music wire, then pre-heated for stress relief and finished with nickel plating through with a hydrogen embrittlement process to increase spring life
  • Feature a newly designed free flowing spring connection
  • Innovative spring ball attachment and new fastening system provides for easy installation
  • Springs are securely held in place with no exposed hooks



    Our original AirBike, built from the ground up to bring on the burn.

     

    TECHNICAL SPECIFICATIONS

    Spring Specs

    Spring Initial Tension Spring Rate Length Coil Diameter Spring Ball O-Ring Color
    Leg Spring 3.4–4.5 lbs
    (1.5–2.0 kg)
    .625 lbs/in +/- 5%
    (.11 N/mm +/- 5%)
    22 in
    (55.9 cm)
    1.2 in
    (3 cm)
    White
    Leg Spring · Enhanced 3.0–4.0 lbs
    (1.4–1.8 kg)
    .625 lbs/in +/- 5%
    (.11 N/mm +/- 5%)
    22 in
    (55.9 cm)
    1.2 in
    (3 cm)
    Green
    Light Arm Spring 2.2–3.2 lbs
    (1.0–1.5 kg)
    .378 lbs/in +/- 10%
    (.07 N/mm +/- 10%)
    19 in
    (48.3 cm)
    1.1 in
    (2.8 cm)
    Yellow
    Reformer Spring · 25% 2.25–3.25 lbs
    (1.0–1.5 kg)
    .311 lbs/in +/- 5%
    (.05 N/mm +/- 5%)
    19.5 in
    (49.5 cm)
    1.5 in
    (4 cm)
    White
    Reformer Spring · 50% 3.0–4.0 lbs
    (1.4–1.8 kg)
    .625 lbs/in +/- 5%
    (.11 N/mm +/- 5%)
    19.5 in
    (49.5 cm)
    1.5 in
    (4 cm)
    Blue
    Reformer Spring · 100% 6.0–7.5 lbs
    (2.7–3.4 kg)
    1.25 lbs/in +/- 5%
    (.22 N/mm +/- 5%)
    19.5 in
    (49.5 cm)
    1.5 in
    (4 cm)
    Red
    Reformer Spring · 125% 7.0–11.0 lbs
    (3.2–5.0 kg)
    1.56 lbs/in +/- 5%
    (.27 N/mm +/- 5%)
    19.5 in
    (49.5 cm)
    1.5 in
    (4 cm)
    Black
    Roll-Down Spring 2.9–3.9 lbs
    (1.3–1.8 kg)
    .495 lbs/in +/- 10%
    (.09 N/mm +/- 10%)
    19 in
    (48.3 cm)
    1.2 in
    (3 cm)
    Black
    Push-Thru Spring / Stability Chair · Light Spring 5.5–7.5 lbs
    (2.5–3.4 kg)
    1.157 lbs/in +/- 10%
    (.2 N/mm +/- 10%)
    18 in
    (45.7 cm)
    1.1 in
    (2.8 cm)
    Blue
    Trapeze Spring / Stability Chair · Heavy Spring 14.75 lbs +/- 1.5 lbs
    (6.7 kg +/- .7 kg)
    3.888 lbs/in +/- 5%
    (.68 N/mm +/- 5%)
    18 in
    (45.7 cm)
    Red