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• The Originals are stronger than OE/Stock rims
• ST-X rims are the strongest, lightweight race rims made
• OE/Stock hubs, spokes and nipples compatible
• Easy to lace up right out of the box, true running
• Great value: Prices start at $138.99 MSRP
The 520MX is D.I.D’s strongest
motocross race chain designed
for severe muddy and sandy
D.I.D’s 520ERT2 is the choice among
top factory Supercross race teams. The
520ERT2 has the optimum balance
between lightweight and strength.
Model Weight Tensile Maximum
Number per100 links Strength c.c.’s
520ERT2 2. 99 lbs. 8, 100 lbs. 450 c.c.
520MX 3. 43 lbs. 8,930 lbs. 500 c.c.
520DZ2 3.08 lbs. 7,870 lbs. 450 c.c.
428NZ 2. 20 lbs. 5,740 lbs. 100 c.c.
420NZ3 1.81 lbs. 4,930 lbs. 150 c.c.
D.I.D’s MX race chains have our SDH pin treatment
that creates a hard chromium carbide layer on the
pin surface for added strength and long life.
Photo: S. Cudby