HomeAll ProductsContactsPrice ListDealer ApplicationOrder a CatalogSearch

EK 630MS Drag Chain

EK drag racing chains can rightfully be called the fastest chains in the world. Top Fuel champion Larry McBride set a world record E.T. of 5.80 seconds using the EK 630SHB chain. The EK 530DRZ has achieved a velocity of 344.048 mph on Sam Wheeler’s E-Z-Hook Streamliner at the Bonneville Salt Flats. The EK 530DRZ is also the choice of more top NHRA Pro Stock motorcycle racers than any other chain. All drag race chains are roller chain and do not have o-rings or x-rings.

EK 630MS - Tough Enough for up to 500hp!

The 630MS was specially designed for the “lighter” drag bike. It’s quad-staked, has a tensile strength of 11,880 lbs. and is rated for bikes up to 500hp. The pin diameter is .233”, the side plates are .121” on the inside, outside and master. To order, specify number of pins needed. Master link sold separately.
  Pitch Width Pin Dia. Pin Length Roller Dia. Plate Thickness Tensile Strength Wear Life Index Weight 100 Links   Connecting Link
Chain in.    mm    in.    mm    mm    mm    mm   Inner(mm)   Outer (mm)   lbs.    kN   Basis = 100 lbs.  kg   HP Max Std. Option
530DRZ  5/8   15.875   3/8   9.53    5.64    24.80    10.20    3.20    2.60   11,500    51.10    200  5.35    2.43    300    SKJ   MLJ
630MS  3/4    19.05   3/8   9.53    5.95    25.15    11.91    3.20    3.20   11,880    52.80    130  6.78    3.08    500    SPJ   PL
630SHB  3/4    19.05   3/8   9.53    7.50    27.70    11.91    4.00    3.20   15,800    70.20    200  9.52    4.33    500+    SPJ   PL
630SHB-Z    3/4    19.05   3/8   9.53    7.50    41.60    11.91    4.00    3.20   30,000   133.00    200  19.54    8.88    500+    SPJ   PL
630MS 630MS Chain per pin
630MS x 110 630MS Chain
630MS x 120 630MS Chain
630MS x 130 630MS Chain
630MS x 140 630MS Chain
630MS x 150 630MS Chain
630MSC 630MS Chain per pin - Chrome
6301MS Clip Style Master Link
6302MS Rivet Style Master Link
6301MSC Clip Style Master Link - Chrome