All RK Heavy Duty & Sealed-ring Motocross
cha ins
utilize special heat treated hi-carbon steel components
with solid rollers and bushings, then pre-stressed
and pre-stretched for maximum performance and
wearlife.
Hear testimonials from Factory and Privateer
Teams on RK Chains and Excel Rims.
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click for specifications
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GB420MXZ
and GB428MZX (& NON GOLD 420, 428MXZ)
Heavy duty Rated up to 125cc Applications:
These lightweight Gold mini-works racing
chains were developed from the same advanced
alloy material and manufacturing technology
as GB520MXZ. Both 420 and 428MXZ Racing
Chains are the strongest in their class
giving you the best Value-Performance rating
of any MX Racing Chain in the world today!
Available in Gold or Metal finishes. |
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420SO and
428SO
RK offers the best O-ring
chains in the industry. All RK O-ring chains
are constructed of hi-carbon alloy steel
for strength and durability. RK utilizes
Nitrile Butadiene O-rings to seal in lubrication
and deliver smooth power with no O-ring
drag or loss of horsepower. |
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GB520MXZ4
( & NON GOLD 520MXZ)
Heavy duty Rated up to 500cc Applications:
Made for the serious Motocross racer, GB520MXZ
is available in our distinctive gold or
metal racing finish. MXZ chains feature
Chromoly steel construction with seamless
rollers and bushings, and oversized special
alloy pins for added strength. All components
are heat-treated using RK's exclusive HIT
(Heat Induction Transfer) process. With
a maximum tensile strength rated at 9000
foot pounds and weighing in at only 2.89
lbs., GB520MXZ4 is the lightest and strongest
Motocross chain available today! Ideal for
professional level 125cc to 500cc Open Class
racing. |
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GB520EXW
and Non-Gold 520EXW XW-Ring
Rated up to 750cc Applications: Dirt and
ATV GB520EXW is RK's premium quality 520
XW-Ring chain. XW-Ring chains are the best
high-speed, extreme heat performance chains
available today. So, If you've modified
your ride into an extreme high-speed machine,
you need the strength and performance of
GB520EXW. With a maximum tensile strength
rated at 8500 foot pounds and suitable up
to 750cc ATV/Quads and Off-Road bikes, GB520EXW
can handle anything you dish out! |
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NEW!
RK CHAIN BREAKER / PRESS-FIT & RIVET
TOOL #UCT4060
Quickly and easily breaks 40 & 50 type
chain. Easily press-fits tight tolerance
40,50 & 60 O-ring chain sideplates to
the correct depth for clip or rivet link
installation. Flares RK's special pin hole
rivet links to the proper dimension to secure
sideplates in place. Works on most brands.
Lifetime warranty on tool body & Handle.
Replacement parts available.
UCT4060 Breaker/Press Fit Rivet Tool $109.99
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