Profile Spline-Drive Spider-5-Arm-19mm Color:Black Rennen chainrings at J&R Bicycles

Rennen 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

Rim Width (Internal): 24 mm

We recommend replacement at least every 6 months due to chain wear

INCLUDES: set of 5

The Answer Dagger Expert Carbon Fork-20" x 1"-10mm is made from premium carbon fiber with 7000 series aluminum components for max performance at top speeds

Profile Spline-Drive Spider-5-Arm-19mm Color:Black Rennen chainrings at J&R BicyclesSPECS: MATERIAL: CNC machined in the U. S. A. from 6061 aluminum. USE: Works with most 3 pc chromoly cranks and 48 splined 19mm spindles (made with offset for outboard bottom bracket Profile). Allows you to use 5 Bolt chainrings. SIZE: 110mm bolt pattern for 5 bolt chainrings. NOTE: Spline Drive Spiders slide directly onto 48 splined 19mm spindles and do not require a gear bolt to attach to crank arm. Weight: 2. 95oz 84g