
Regina Chains
Comes in Three Qualities
Reinforced, Non O-Ring
Chain, Heavy Duty
Chain has gold outer plates, grey rollers, pre-stretched- see specs
below
W-roller link width, D-roller diameter,
T1-pin link plate thickness, T2-roller link plate thickness
B-weight, P-pitch, L-pin length, R-average tensile strength
| Chain |
P-in. |
W-in. |
D-in. |
T1-in. |
T2-in. |
L-in. |
B-lbs/ft |
R-lbs. |
Applications |
Up to |
| 420 ORO |
1/2 |
1/4 |
.305 |
.064 |
.071 |
.633 |
.37 |
3530 |
Dirt/Street |
80cc |
| 428 RH |
1/2 |
5/16 |
.335 |
.079 |
.079 |
.744 |
.54 |
5060 |
Dirt |
125cc |
Professional, Non O-Ring, Lightest
Possible
Chain has gold outer plates, grey rollers, pre-stretched- see specs below
W-roller link width, D-roller diameter,
T1-pin link plate thickness, T2-roller link plate thickness
B-weight, P-pitch, L-pin length, R-average tensile strength
| Chain |
P-in. |
W-in. |
D-in. |
T1-in. |
T2-in. |
L-in. |
B-lbs/ft |
R-lbs. |
Applications |
Up to |
| 520 RX3 |
5/8 |
1/4 |
.400 |
.079 |
.079 |
.785 |
.65 |
7650 |
Dirt |
500cc |

520 Quad Chain Z-Ring
520 quad Chains have "gold outer plates. A tough elastic
Z-ring seals in special grease to provide increase wear life over standard
sealed chains. The Z-rings also keep out dirt and water, chain construction
features high chrome - nickel alloy pins, solid bushings, shot peened solid
rollers and plates for increased fatigue strength. Chains are prestressed to
provide quick break in for minimal adjustments.
O-Ring, Top Quality
Chain has gold outer plates, copper rollers, pre-stretched- see specs
below
W-roller link width, D-roller diameter, T1-pin link plate thickness, T2-roller
link plate thickness
B-weight, P-pitch, L-pin length, R-average tensile strength
| Chain |
P-in. |
W-in. |
D-in. |
T1-in. |
T2-in. |
L-in. |
B-lbs/ft |
R-lbs. |
Applications |
Up to |
| 520 ORN |
5/8 |
1/4 |
.400 |
.079 |
.079 |
.803 |
.71 |
7060 |
Dirt/Street |
600cc |
EK Chains
Best seller chain line which features solid
rollers, constructed with soft-peened and pre-stretched components for better
performance and fewer adjustments. All drive chains include a connecting link.
Comes in three styles.
Sport 520 SRX Quadra X-Ring
Chain
The best chain available for ATV/Offroad
Offers 50-100% longer life that O-Rings, while reducing friction up to 50%.
Ultra-durable Quadra X-ring material resists premature failure, ensuring
reliable sealing throughout the life of the chain. With tensile strength of
8400#. Developed for most ATV & off road bikes up to 600cc plus street units up
to 600cc.
Sport 520 SRO O-Ring Chain
520 O-Ring chain is equipped with solid
bushings, a tensile strength of 7400# which can be used on ATV/Dirt Bikes up to
250cc street units up to 400cc with a maximum of 40HP.
Sport Series, Non Sealed
Chain, Standard
Features two-point pin riveting and formed
bushings. Recommended for ATV's, dirt bikes and motorcycles up to 125cc. All
chains can be cut to length with connecting links provided with each chain.
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