In Reply To:
In Reply To:
Sergio, are these for your teenage son?
if so I would suggest that you leave him on his conventional cranks & restricted gearing for a few years more. there is no need to submit his still developing body to any additional strains.
there are enough stresses & strains with tri training as it is.
btw, I use rotorkranks on my roadie & tri bike. I think they're great but for a youngster, not really necessary.
avago
I agree that kids should be kids and not train like adults, but which system do you allege creates additional strains and why?
If both systems are allegedly better for lower cadence then wouldn't they benefit younger riders who tend to ride with lower cadences?