But at the 8150 and 9250 big chainring and smalest cog is possible to shift. So why should i mesure the chain at the second smalest cog. This Video is specific for 8150 and 9250, isn‘t it? I just installed mine an I am a Bit confused. Especially because the chain rubs when I'm on the largest chainring and the largest cog. I know cross-chaining isn't ideal, but shouldn't the chain run freely? The chain rubs on the outside of the OSPW cage. Or is that normal because cross-chaining is not recomanded?
Thank you for your message. While Gear Postion Control is no longer included on the Ultegra level, it is still part of Dura Ace 9250. Measuring the chain in the 11-tooth or 12-tooth cog will not change the length of the chain as the difference is very minor. With all things setup properly the chain should not rub on the derailleur cage. Please contact our support team if you need further assistance to remedy this at cycling@ceramicspeed.com
Hi, Correct, as the chain is measured for the longest length possible while maintaining the minimum required chain tension, this will accommodate all approved cassette options for a given group set. The length of the OSPW cage makes this possible.
wow that's super clean and awesome. I love the solid pulleys and leaner cage design. Great job.
형님 감사합니다. 덕분에 설치 완료했습니다 :-)
When setting b tension, should one use the original Shimano gauge or does the OSPW have their own specific clearence?
Hi,
The ideal gap is between 4-7mm.
But at the 8150 and 9250 big chainring and smalest cog is possible to shift. So why should i mesure the chain at the second smalest cog. This Video is specific for 8150 and 9250, isn‘t it?
I just installed mine an I am a Bit confused.
Especially because the chain rubs when I'm on the largest chainring and the largest cog. I know cross-chaining isn't ideal, but shouldn't the chain run freely? The chain rubs on the outside of the OSPW cage.
Or is that normal because cross-chaining is not recomanded?
Thank you for your message. While Gear Postion Control is no longer included on the Ultegra level, it is still part of Dura Ace 9250. Measuring the chain in the 11-tooth or 12-tooth cog will not change the length of the chain as the difference is very minor. With all things setup properly the chain should not rub on the derailleur cage. Please contact our support team if you need further assistance to remedy this at cycling@ceramicspeed.com
Hi, so when installing the chain, it does not matter the size of the cassette, right?
Hi,
Correct, as the chain is measured for the longest length possible while maintaining the minimum required chain tension, this will accommodate all approved cassette options for a given group set. The length of the OSPW cage makes this possible.
@@CeramicSpeed Awesome. Thank you very much for your answer. 🥰
Does it fit to ultegra di2 R8170?
Yes, you'll find it right here: ceramicspeed.com/en-eu/products/ospw-rs-alpha-for-shimano-9250-8150-team?_pos=5&_fid=bccce9217&_ss=c