corone disponibili integrate per Hollowgram , sia tonde che ovali versione “Melon”
available Hollowgram integrated single chainring, narrow-wide teeth profile, both round and “Melon” oval versions
corone disponibili integrate per Hollowgram , sia tonde che ovali versione “Melon”
available Hollowgram integrated single chainring, narrow-wide teeth profile, both round and “Melon” oval versions