Middleburn RS8 DUO spider is the latest version of our legendary DUO system first developed by us in 1995.
The DUO 4-ARM spider can run an inner of 22t-28t and on outer of 32t-42t
the pairing we reccomend is
22/36t
24/38t
26/39t
28/42t
The DUO spider has been CNC machined from a billet 7075T6 one of the strongest alloys available today for unsurpassed durability.
The RS8 X-TYPE DUAL 4-ARM 104pcd.
The RS8 X-TYPE DUAL is used on downhill bikes but more recently has been used for single speed bikes and hub geared bikes.
The Dual spider is machined away on the back and has no inner ring bolt holes. The spider has a tab that allows the ring to be fitted on the inside or the outside on the inner position the chain line is 50mm.
Spider RS8 MONO Single Ring
The Middleburn RS8 MONO spider is designed for use with a single chainring up front, and is best coupled with the matching Middleburn MONO chainring.
Ideal uses for the MONO spider are single speed, hub geared or a conventionaly geared bike running a single ring up front.
Spider RS8 Rohloff Single Ring
Middleburn RS8 Rohloff Spider has been designed for use with the Rohloff hub gear.
This spider has been designed to work with Middleburn MONO chain rings.
The Middleburn Rohloff spider has been CNC machined from a billet 7075T6 one of the strongest alloys available today for unsurpassed durability.
Spider RS8 XX1 Single Ring
The Middleburn RS8 XX1 Spider has been designed so that the Sram XX1 chainring can be fitted directly to our spider for use with the Sram XX1 groupset.