Rennen Decimal Chainring-4-Bolt 104 BCD standard onyx 6mm bolts and 5mm rear

6mm bolts and 5mm rear nuts and will fit almost any chainring/crank combo

This hub offers instant

HUB SHELL: USA made

the Elite hub features a true 20mm bolt-on hollow aluminum axle and is compatible with any fork that uses 20mm axle without the need for adaptors

Weight: 78g

Rennen Decimal Chainring-4-Bolt 104 BCD standard onyx 6mm bolts and 5mm rearRennen chainrings at J&R Bicycles are precission machined from aircraft quality 7075 T6 aluminum (83% stronger than the 6061 many brands use) Rennen chainrings are 3 16" thick and are made for the stress of the top BMX racers and conditions. Only Rennen offers a single speed specific tooth profile that is designed to last longer and keep chains on. SPECIFICATION MATERIAL: U. S. A. Made 7000 Series Aluminum and CNC machined, specifically shaped teeth