Black Scale Chain Kit 900cc engine
| Product number: | CB12488 |
| item number: | 7250789.102 |
RK BlackLine chain set complete for all models 900cc engines with 520 chain.
Standard gear ratio of the motorcycles see table below.
ATTENTION Euro 5 models: For Euro 5 vehicles, the ECU must be reprogrammed when the transmission ratio is changed. This requires the OBD Bluetotth adapter + the Tune ECU programme (the Bluetotth adapters can be found under the accessories in this description).
Please check beforehand in the Tune ECU program whether it is possible to set your desired gear ratio (not every gear ratio is possible on all models)
RK Black Scale 520 chain set.
Perhaps the most elegant chain available on the motorcycle market. Black link plates and gold rivets and rollers from the premium manufacturer RK Chaines.
The chain kit comes with a rivet lock.
The kit includes a very high quality RK chain, a chainring (choice of a black steel chainring or a stealth chainring in gold / black) and a chain sprocket.
A bit further down in the description, you have to pack your desire gears to the set.
In addition, a rivet lock is included.
Tip:
- We recommend for safety still a new pinion lock plate with the chain set to order (see accessories article in this description).
- In addition, you will find in the accessories still beautiful, black chainring nuts for all who want to have it completely black.
Serial translation
| model | chainring | pinion |
| Bonneville T100 | 41 teeth | 17 teeth |
| Street Twin | 41 teeth | 17 teeth |
| StreetScrambler | 41 teeth | 17 teeth |
| StreetCup | 41 teeth | 17 teeth |
Since the standard transmission is clearly too short, we recommend taking the larger 44 chainring and thus translate the bike slightly shorter. This pushes the bike down again significantly more powerful, but still does not lose top speed.
To the RK chain:
For more than 40 years, RK has supplied all well-known Japanese motorcycle manufacturers with original equipment.
Also in racing, RK is the first choice of many teams in MotoGP, motocross or even at the Paris-Dakar Rally.
The Black Scale is an improved form of the O-ring chains. Due to the special shape of the X-rings, the chain is sealed at four sealing points, the lubricant can not escape.
In addition, the X-ring serves as an additional lubricant reservoir. The service life of the chain is extended by about 30%.
| Triumph LC models from 2016: |
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| Triumph LC ab 2016 |
Bonneville T100 EU 4
Bonneville T100 EU 5
Street Cup
Street Scrambler / Scrambler 900 EU 4
Street Scrambler / Scrambler 900 EU 5 - Street Scrambler / Scrambler 900
Street Twin / Speed Twin 900 EU 4
Street Twin / Speed Twin 900 EU 5 - Street Twin / Speed Twin 900
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