


Please Note: You can check your chain length by simply counting the number of pins using a zip tie as a marker, remember to allow for sprocket size changes when going larger. You can "cut" a chain by grinding the two heads off one link and using a punch. Connecting a chain should be done by a professional using a chain riveting tool or with a clip type connecting link normally sold separately.
| Link Size Chart | 420 | 428 | 520 | 525 | 530 | 630 |
| 1 Link in Feet | .0417 | .0417 | .0521 | .0521 | .0521 | .0625 |
| Link per feet | 24 | 24 | 19.2 | 19.2 | 19.2 | 16 |
Gold for street up to 125cc
| RKGB415HR-120 | RK GB415HR X 120L GLD/BLK |
| R18-GB416HR | RK GB415HR GLD CLIP C-LK |
M420

RK-M Standard two-point pin rivet with solid rollers chain for bikes that came with non-oring chains standard
Up to 80cc
| RKM42084 | RK M420 X 84 LINKS |
| RKM420100 | RK M420 X 100 LINKS |
| RKM420104 | RK M420 X 104 LINKS |
| RKM420110 | RK M420 X 110 LINKS |
| RKM420114 | RK M420 X 114 LINKS |
| RKM420120 | RK M420 X 120 LINKS |
| RKM420130 | RK M420 X 130 LINKS |
| R18-M420 | RK M420 X 100FT ROLL |
| R18-M422 | RK M420 CLIP CONN LINK |
GB420 MXZ

HEAVY DUTY MXZ
| RK420MXZ82 | RK GB420 MXZ X 82 LINKS |
| RK420MXZ96 | RK GB420 MXZ X 96 LINKS |
| RK420MXZ100 | RK GB420 MXZ X 100 LINKS |
| RK420MXZ104 | RK GB420 MXZ X 104 LINKS |
| RK420MXZ110 | RK GB420 MXZ X 110 LINKS |
| RK420MXZ114 | RK GB420 MXZ X 114 LINKS |
| RK420MXZ116 | RK GB420 MXZ X 116 LINKS |
| RK420MXZ118 | RK GB420 MXZ X 118 LINKS |
| RK420MXZ120 | RK GB420 MXZ X 120 LINKS |
| RK420MXZ124 | RK GB420 MXZ X 124 LINKS |
| RK420MXZ126 | RK GB420 MXZ X 126 LINKS |
| RK420MXZ130 | RK GB420 MXZ X 130 LINKS |
| RK420MXZ132 | RK GB420 MXZ X 132 LINKS |
| R18420MXZ | RK GB420 MXZ X 100FT ROLL |
| R18422MXZ | RK GB420MXZ GLD CLIP C-LK |
M428
For street up to 125cc and dirt bikes up to 80cc
| RKM428110 | RK M428 X 110 LINKS |
| RKM428112 | RK M428 X 112 LINKS |
| RKM428118 | RK M428 X 118 LINKS |
| RKM428120 | RK M428 X 120 LINKS |
| RKM428126 | RK M428 X 126 LINKS |
| RKM428130 | RK M428 X 130 LINKS |
| RKM428132 | RK M428 X 132 LINKS |
| R18-M428 | RK M428 X 100FT ROLL |
| R18-M430 | RK M428 CLIP CONN LINK |
GB428MXZ " our best 428 chain"

| RK428MXZ86 | RK GB428MXZ X 86 LINKS |
| RK428MXZ90 | RK GB428MXZ X 90 LINKS |
| RK428MXZ92 | RK GB428MXZ X 92 LINKS |
| RK428MXZ96 | RK GB428MXZ X 96 LINKS |
| RK428MXZ100 | RK GB428MXZ X 100 LINKS |
| RK428MXZ104 | RK GB428MXZ X 104 LINKS |
| RK428MXZ110 | RK GB428MXZ X 110 LINKS |
| RK428MXZ112 | RK GB428MXZ X 112 LINKS |
| RK428MXZ114 | RK GB428MXZ X 114 LINKS |
| RK428MXZ116 | RK GB428MXZ X 116 LINKS |
| RK428MXZ118 | RK GB428MXZ X 118 LINKS |
| RK428MXZ120 | RK GB428MXZ X 120 LINKS |
| RK428MXZ124 | RK GB428MXZ X 124 LINKS |
| RK428MXZ126 | RK GB428MXZ X 126 LINKS |
| RK428MXZ130 | RK GB428MXZ X 130 LINKS |
| RK428MXZ132 | RK GB428MXZ X 132 LINKS |
| R18428MXZ | RK GB428MXZ X 100FT ROLL |
| R18429MXZ | RK GB428MXZ X 25FT ROLL |
| R18430MXZ | RK GB428MXZ GLD CLIP C-LK |
M520

For street up to 250cc
| RKM52082 | RK M520 X 82 LINKS |
| RKM52084 | RK M520 X 84 LINKS |
| RKM52086 | RK M520 X 86 LINKS |
| RKM52088 | RK M520 X 88 LINKS |
| RKM52090 | RK M520 X 90 LINKS |
| RKM52092 | RK M520 X 92 LINKS |
| RKM52096 | RK M520 X 96 LINKS |
| RKM52098 | RK M520 X 98 LINKS |
| RKM520100 | RK M520 X 100 LINKS |
| RKM520102 | RK M520 X 102 LINKS |
| RKM520104 | RK M520 X 104 LINKS |
| RKM520106 | RK M520 X 106 LINKS |
| RKM520108 | RK M520 X 108 LINKS |
| RKM520110 | RK M520 X 110 LINKS |
| RKM520112 | RK M520 X 112 LINKS |
| RKM520114 | RK M520 X 114 LINKS |
| RKM520116 | RK M520 X 116 LINKS |
| RKM520118 | RK M520 X 118 LINKS |
| RKM520120 | RK M520 X 120 LINKS |
| RKM520130 | RK M520 X 130 LINKS |
| R18-M520 | RK M520 X 100FT ROLL |
| R18-M521 | RK M520 X 25 FT ROLL |
| R18-M522 | RK M520 CLIP CONN LINK |
GB520MXZ

For 125cc to 500cc
GB520MXZ3 is the lightest MX chain on the market and is made for pro racers. MXZ3 chains feature chromoly steel construction with seamless rollers and bushings, as well as oversized special alloy pins for added strength. All components are heat-treated. MXZ3 has a maximum tensile strength of 8,800 ft.-lbs., weighs a mere 3.10 lbs. for 100 links, and can handle any MX application from 125 to 500 ccs.
| RKGB520MXZ-11 | RK GB520MXZ3 X 116 LINKS |
| RKGB520MXZ-12 | RK GB520MXZ3 X 120 LINKS |
| R18-GB522MXZ | RK GB520MXZ3 GLD CLP C-LK |
520 X-Ring XSO "our most popular chain up to 750cc bikes"
| RK520XSO-100 | RK 520XSO X 100 LINKS |
| RK520XSO-102 | RK 520XSO X 102 LINKS |
| RK520XSO-104 | RK 520XSO X 104 LINKS |
| RK520XSO-106 | RK 520XSO X 106 LINKS |
| RK520XSO-108 | RK 520XSO X 108 LINKS |
| RK520XSO-110 | RK 520XSO X 110 LINKS |
| RK520XSO-112 | RK 520XSO X 112 LINKS |
| RK520XSO-114 | RK 520XSO X 114 LINKS |
| RK520XSO-116 | RK 520XSO X 116 LINKS |
| RK520XSO-118 | RK 520XSO X 118 LINKS |
| RK520XSO-120 | RK 520XSO X 120 LINKS |
| R18-520XSO | RK 520XSO X 100FT ROLL |
| R18-521XSO | RK 520XSO X 25FT ROLL |
| R18-522XSO | RK 520XSO CLIP CONN LINK |
| R18-523XSO | RK 520XSO RIVET CONN LINK |
Gold 520 X-Ring XSO "and in gold"

As part of their continuing quality improvement program, the RK Chain Factory has made a running production upgrade to their best selling 520XSO chain. The new upgrade GBXSO and non-gold XSO chains features RK's proprietary "RX-Ring" seal design and is offered in 520, 525 & 530. All versions are available in either gold/gold or standard steel color. Viewed in cross-section, the RK "RX-Ring" has two lubrication pools and seal points versus the single seal point/pool design of a regular o-ring chain. RK's new GBXSO chains offer quality, performance and unbeatable value, for all but the most demanding high performance application.
| GB520XSO-100 | GB520XSO X 100 LINKS |
| GB520XSO-102 | GB520XSO X 102 LINKS |
| GB520XSO-104 | GB520XSO X 104 LINKS |
| GB520XSO-106 | GB520XSO X 106 LINKS |
| GB520XSO-108 | GB520XSO X 108 LINKS |
| GB520XSO-110 | GB520XSO X 110 LINKS |
| GB520XSO-112 | GB520XSO X 112 LINKS |
| GB520XSO-114 | GB520XSO X 114 LINKS |
| GB520XSO-116 | GB520XSO X 116 LINKS |
| GB520XSO-118 | GB520XSO X 118 LINKS |
| GB520XSO-120 | GB520XSO X 120 LINKS |
| GB520XSO-130 | GB520XSO X 130 LINKS |
| GB521XSO | GB520XSO CLIP CONN LINK |
| GB522XSO | GB520XSO RIVET CONN LINK |
Gold 520 XW-Ring GXW

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 GB520GXW. With a maximum tensile strength rated at 8800 foot pounds and suitable up to 1000cc streetbikes and 750cc off-road bikes, GB520GXW can handle anything you dish out!
| GB520GXW-100 | GB520GXW X 100 LINKS |
| GB520GXW-102 | GB520GXW X 102 LINKS |
| GB520GXW-104 | GB520GXW X 104 LINKS |
| GB520GXW-106 | GB520GXW X 106 LINKS |
| GB520GXW-108 | GB520GXW X 108 LINKS |
| GB520GXW-110 | GB520GXW X 110 LINKS |
| GB520GXW-112 | GB520GXW X 112 LINKS |
| GB520GXW-114 | GB520GXW X 114 LINKS |
| GB520GXW-116 | GB520GXW X 116 LINKS |
| GB520GXW-118 | GB520GXW X 118 LINKS |
| GB520GXW-120 | GB520GXW X 120 LINKS |
| GB520GXW-130 | GB520GXW X 130 LINKS |
| GB522GXW | GB520GXW RIVET CONN LINK |
520EXW "our best 520 chain"
| RK520EXW-100 | RK 520EXW X 100 LINKS |
| RK520EXW-110 | RK 520EXW X 110 LINKS |
| RK520EXW-120 | RK 520EXW X 120 LINKS |
| R18-520EXW | RK 520EXW CLIP CONN LINK |
| R18-521EXW | RK 520EXW RIVET CONN LINK |
GB520EXW Gold "and in gold"

The GB520EXW chain is designed for ATVs and dirtbikes and, according to RK, is the best high-speed, extreme heat, off-road performance chain available today. To survive hostile off-road environments, EXW features XW-ring seals with three contact lips and two convex inner/outer stabilizers. This reportedly creates three lubrication pools to protect against high-speed abrasion and the loss of lubricant.
| GB520EXW-100 | RK GB520EXW X 100 LINKS |
| GB520EXW-110 | RK GB520EXW X 110 LINKS |
| GB520EXW-120 | RK GB520EXW X 120 LINKS |
| R18-GB520EXW | RK GB520EXW GLD CLIP C-LK |
| R18-GB521EXW | RK GB520EXW GLD RIVT C-LK |
M525
For street bikes up to 400cc
| RKM525100 | RK M525 X 100 LINKS |
| RKM525110 | RK M525 X 110 LINKS |
| RKM525114 | RK M525 X 114 LINKS |
| RKM525120 | RK M525 X 120 LINKS |
| R18-M525 | RK M525 X 100FT ROLL |
| R18-M527 | RK M525 CLIP CONN LINK |
Gold 525 X-Ring XSO
| GB525XSO-110 | GB525XSO X 110 LINKS |
| GB525XSO-120 | GB525XSO X 120 LINKS |
| GB526XSO | GB525XSO CLIP CONN LINK |
| GB527XSO | GB525XSO RIVET CONN LINK |
Gold 525 XW-Ring GXW

New lightweight high performance sportbike chain. GB525GXW has a maximum tensile strength rated at 9,300 foot lbs and is suitable for up to 1000cc streetbikes and 800cc dirt bikes. RK's ultimate new generation high-performance sportbike chain.
| GB525GXW-110 | GB525GXW X 110 LINKS |
| GB525GXW-120 | GB525GXW X 120 LINKS |
| GB527GXW | GB525GXW RIVET CONN LINK |
M530
For street bikes up to 400cc
| RKM530100 | RK M530 X 100 LINKS |
| RKM530102 | RK M530 X 102 LINKS |
| RKM530104 | RK M530 X 104 LINKS |
| RKM530106 | RK M530 X 106 LINKS |
| RKM530108 | RK M530 X 108 LINKS |
| RKM530110 | RK M530 X 110 LINKS |
| RKM530112 | RK M530 X 112 LINKS |
| RKM530114 | RK M530 X 114 LINKS |
| RKM530116 | RK M530 X 116 LINKS |
| RKM530118 | RK M530 X 118 LINKS |
| RKM530120 | RK M530 X 120 LINKS |
| R18-M530 | RK M530 X 100FT ROLL |
| R18-M531 | RK M530 X 25 FT ROLL |
| R18-M532 | RK M530 CLIP CONN LINK |
530 DR Ultimate Lightweight Drag Racing Chain up to 1500cc
| RK-530DR-120 | RK 530DR X 120 LINKS |
| RK-530DR-130 | RK 530DR X 130 LINKS |
| RK-530DR-140 | RK 530DR X 140 LINKS |
| R18-530DR | RK 530DR X 100FT ROLL |
| R18-531DR | RK 530DR X 25FT ROLL |
| R18532DR | RK 530DR CLIP CONN LINK |
530 KS Heavy duty chain for bikes up to 400cc
| RK-530KS-100 | RK 530KS X 100 LINKS |
| RK-530KS-102 | RK 530KS X 102 LINKS |
| RK-530KS-104 | RK 530KS X 104 LINKS |
| RK-530KS-106 | RK 530KS X 106 LINKS |
| RK-530KS-108 | RK 530KS X 108 LINKS |
| RK-530KS-110 | RK 530KS X 110 LINKS |
| RK-530KS-112 | RK 530KS X 112 LINKS |
| RK-530KS-114 | RK 530KS X 114 LINKS |
| RK-530KS-116 | RK 530KS X 116 LINKS |
| RK-530KS-120 | RK 530KS X 120 LINKS |
| R18-530KS | RK 530KS X 100FT ROLL |
| R18-531KS | RK 530KS X 25FT ROLL |
| R18-532KS | RK 530KS CLIP CONN LINK |
530 X-Ring XSO "our most popular chain for up to 1000cc bikes"
| RK530XSO-100 | RK 530XSO X 100 LINKS |
| RK530XSO-102 | RK 530XSO X 102 LINKS |
| RK530XSO-104 | RK 530XSO X 104 LINKS |
| RK530XSO-106 | RK 530XSO X 106 LINKS |
| RK530XSO-108 | RK 530XSO X 108 LINKS |
| RK530XSO-110 | RK 530XSO X 110 LINKS |
| RK530XSO-112 | RK 530XSO X 112 LINKS |
| RK530XSO-114 | RK 530XSO X 114 LINKS |
| RK530XSO-116 | RK 530XSO X 116 LINKS |
| RK530XSO-118 | RK 530XSO X 118 LINKS |
| RK530XSO-120 | RK 530XSO X 120 LINKS |
| R18-530XSO | RK 530XSO X 100FT ROLL |
| R18-531XSO | RK 530XSO X 25FT ROLL |
| R18-532XSO | RK 530XSO CLIP CONN LINK |
| R18-533XSO | RK 530XSO RIVET CONN LINK |
Gold 530 X-Ring XSO "and in gold"

| GB530XSO-102 | GB530XSO X 102 LINKS |
| GB530XSO-104 | GB530XSO X 104 LINKS |
| GB530XSO-106 | GB530XSO X 106 LINKS |
| GB530XSO-108 | GB530XSO X 108 LINKS |
| GB530XSO-110 | GB530XSO X 110 LINKS |
| GB530XSO-112 | GB530XSO X 112 LINKS |
| GB530XSO-114 | GB530XSO X 114 LINKS |
| GB530XSO-116 | GB530XSO X 116 LINKS |
| GB530XSO-118 | GB530XSO X 118 LINKS |
| GB530XSO-120 | GB530XSO X 120 LINKS |
| GB530XSO-130 | GB530XSO X 130 LINKS |
| GB530XSO-100 | GB530XSO X 100 LINKS |
| GB531XSO | GB530XSO CLIP CONN LINK |
| GB532XSO | GB530XSO RIVET CONN LINK |
Gold 530 XW-Ring GXW " Our strongest 530 chain"

| GB530GXW-100 | GB530GXW X 100 LINKS |
| GB530GXW-102 | GB530GXW X 102 LINKS |
| GB530GXW-104 | GB530GXW X 104 LINKS |
| GB530GXW-106 | GB530GXW X 106 LINKS |
| GB530GXW-108 | GB530GXW X 108 LINKS |
| GB530GXW-110 | GB530GXW X 110 LINKS |
| GB530GXW-112 | GB530GXW X 112 LINKS |
| GB530GXW-114 | GB530GXW X 114 LINKS |
| GB530GXW-116 | GB530GXW X 116 LINKS |
| GB530GXW-118 | GB530GXW X 118 LINKS |
| GB530GXW-120 | GB530GXW X 120 LINKS |
| GB530GXW-130 | GB530GXW X 130 LINKS |
| GB532GXW | GB530GXW RIVET CONN LINK |
532 GSV for bikes up to 1300cc "for those OEM replacements"

| RK532GSV-110 | RK 532GSV X 110 LINKS |
| R18-534GSV | RK 532GSV CLIP CONN LINK |
| R18-535GSV | RK 532GSV RIVET CONN LINK |
630SO "for those large super bikes"

Strongest, lightest, quietest, most durable RK chain available. Eight times the wear of standard chain. Designed to handle the ever-increasing horsepower ratings of today's bikes
| RK-630SO-84 | RK 630SO X 84 LINKS |
| RK-630SO-86 | RK 630SO X 86 LINKS |
| RK-630SO-88 | RK 630SO X 88 LINKS |
| RK-630SO-90 | RK 630SO X 90 LINKS |
| RK-630SO-92 | RK 630SO X 92 LINKS |
| RK-630SO-94 | RK 630SO X 94 LINKS |
| RK-630SO-96 | RK 630SO X 96 LINKS |
| RK-630SO-98 | RK 630SO X 98 LINKS |
| RK-630SO-100 | RK 630SO X 100 LINKS |
| RK-630SO-102 | RK 630SO X 102 LINKS |
| RK-630SO-110 | RK 630SO X 110 LINKS |
| RK-630SO-120 | RK 630SO X 120 LINKS |
| R18-632SO | RK 630SO CLIP CONN LINK |
| R18-633SO | RK 630SO RIVET CONN LINK |
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