Following yet another unexplained puncture using my 2005 vintage Tacx Flow, my patience has run out and I have decided to try and move from wheel-on to direct drive trainer – specifically the Kickr Core is top of my list.
The bike I am using for indoor riding is a 2003 Kinesis Racelight with Campagnolo 9 speed Veloce gears.
Dropouts on the bike are normal 130mm quick release so mounting the bike on the Kickr Core should be no problem.
I had initially thought about getting the Campag freehub for the Core but the specs say 10 speed and above - I believe the old 9 speed cassettes will not physically fit on, so that idea bites the dust.
Next idea is to use a current model 9 speed Shimano cassette (e.g. Sora or Alivio). From what I have read I think 9 speed Campag has 0.2mm wider spacing per sprocket – in other words, with a Shimano cassette the indexing will effectively move the rear mech 0.2mm too far on each shift.
Does anyone have experience of using a 9 speed Shimano cassette with 9 speed Campag mech and shifters? I’m using ERG mode most of the time and am I’m looking for a pragmatic / workable solution rather than shifting perfection. I would be more than happy if I could get (say) the middle 5 sprockets working OK.
In the context of trainer rather than outdoor usage, is the non-perfect shifting likely to be good enough? I should be able to use the barrel adjuster on the mech to get correct alignment on say sprocket 5, that would have my mis-aligned by 0.4mm on sprockets 3 and 7. Is that going to be within useable tolerances?
I think that first 5 sprockets of the Sora cassettes are a single piece but I could always experiment with shims to space out 6,7, 8 & 9. Alternatively, I am aware of the existence of the shiftmate adaptor but would rather not use one if I don’t have too – I want to keep it as quick and easy as possible to get the bike back into “outdoors mode”.
Any thoughts of experience greatly received. Part of me wonders if I’m over-thinking the whole thing and worrying about something which will work “good enough” out of the box.