I'm looking to try swapping the original Shimano 8000 rear derailleur pulleys for third party ones on the TT bike, trying to improve drivetrain "smoothness".
I sense resistance coming from BB seals, that's a compromise I'm accepting it because I often ride in the rain/bad weather.
I also feel friction from inner chain links on chainring teeth (despite waxed chain with PTFE/Molybdenium Disulphide paraffin mix). I'll swap this awful Sram chain (that came original with the bike) for a Dura Ace 9100.
The original Shimano Ultegra 8000 pulleys, although they don't offer much resistance, they are not particularely fast spinning.
Not so sure about spending $200.+ on derailleur pulleys alone if it's not worth it.
What are your observations on the different rear derailleur 12/14T setups you tried ? NOT oversized cages.
Louis :-)
I sense resistance coming from BB seals, that's a compromise I'm accepting it because I often ride in the rain/bad weather.
I also feel friction from inner chain links on chainring teeth (despite waxed chain with PTFE/Molybdenium Disulphide paraffin mix). I'll swap this awful Sram chain (that came original with the bike) for a Dura Ace 9100.
The original Shimano Ultegra 8000 pulleys, although they don't offer much resistance, they are not particularely fast spinning.
Not so sure about spending $200.+ on derailleur pulleys alone if it's not worth it.
What are your observations on the different rear derailleur 12/14T setups you tried ? NOT oversized cages.
Louis :-)