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Had a really long day at Ironman this year... 5 years of bike hassles in 180kms.... Best be forgotten Nonetheless - this got me thinking. Why does no-one ride a 1-11 setup on a TT bike? Answers to my own questions would be: minimal weight saving (Cabling, derailleur, chainring, shifter etc...dont add up to much) Any weight saving would be reduced by having to add a chain guide Gap between gears is too large. Optimal cadence is in a very narrow range of maybe 5 rpm (not sure what Sheldon Brown says about this) My situation further compounded by running Osymmetric (not Rotor etc...) front rings. Thoughts?

Greetings all. Is anyone able to advise if CSA has released updated regulations regarding the new UCI junior gearing rule changes for 2023? There seems to be a fair amount of confusion around this issue. We've recently moved from SA to Aus and I've installed 'junior gearing' to my 15yr old son's road bike, but he will be racing in SA for the next few years as well. Online searching defines 'junior' as 17 & 18yr group, and seems to be supported by the article link below as well as Aus Cycling and British Cycling regulations: https://www.cyclingnews.com/news/uci-scraps-junior-gearing-restrictions-for-2023/ British Cycling: https://www.britishcycling.org.uk/about/article/20221221-about-bc-static-Regulation-change--Junior-gearing-0 - note that it states no changes to 'Youth' gearing regulations. I've spoken to a few local coaches and the interpretation here in Aus is that all age groups younger than 17 are still required to use junior gearing with the roll-out distances in place. The only roll-out distance removed is the 7.93m for the 17 & 18 yr olds, which is the same as the British Cycling updated rules for 2023 which still has the various roll-out distances for the younger age groups defined. Then in SA I know that kids are riding CSA sanctioned races with full/regular gearing (at least at provincial level) in the younger age groups. I haven't been able to find any clarity in CSA regulations yet...still looking. Just confused/interested and would greatly appreciate some clarification. Many thanks.