Blikies Posted July 27, 2011 Share My youngster have been told by an seasoned rider that he needs to change his cassette or else he will hurt his legs. He is 15 years old but a good overall athlete. Compete on National level in Biathlon, Triathlon, Duathlon and is an seasoned swimmer, including open water 3 and 5 km events. We are new to cycling and he is riding a Raleigh Limited , with full 105 (latest) group set. His current cassette is 11 / 25. Can some of the Pro’s please shed some light? Link to comment Share on other sites More sharing options...
AndreZA Posted July 27, 2011 Share A 52x14 is the biggest gear allowed. He can go 50x13 aswell. This is the UCI law. Link to comment Share on other sites More sharing options...
Blikies Posted July 27, 2011 Share Thanks AndraZA. Please pardon my ignorance: What do you mean with “A 52x14 is the biggest gear allowed. He can go 50x13 as well” As you can see we are complete novices. Link to comment Share on other sites More sharing options...
AndreZA Posted July 27, 2011 Share The 52 is the biggest gear infront and the 14 smallest (as in size, not gear) on the back. You can go drop to 13 at the back but then you have to change to a 50 (compact) on the front. Link to comment Share on other sites More sharing options...
Blikies Posted July 27, 2011 Share Aaa.... that makes sense. Thanks. What cassette will you recommend since he has a 52 front ring and 10 spd derailleur. Link to comment Share on other sites More sharing options...
AndreZA Posted July 27, 2011 Share Ultegra 6600 14-15-16-17-18-19-20-21-23-25 BBB also makes one and will be cheaper then the Shimano one. Link to comment Share on other sites More sharing options...
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