Rennen Pentacle 110mm 5 bolt Chainrings are precision machined from aircraft quality 7075-T6 Aluminum ( 83% stronger than 6061) and available in Stealth Black, offering the highest performance at the right price.
Rennen is the first to introduce Integrat

Rennen Pentacle 110mm 5 bolt Chainrings are precision machined from aircraft quality 7075-T6 Aluminum ( 83% stronger than 6061) and available in Stealth Black, offering the highest performance at the right price.
Rennen is the first to introduce Integrat