SPARK Expander chainrings

SPARK Expander chainringsLike many other expander bungs, the SPARK expander fits inside the fork steerer tube and gives the stem clamping area some reinforcement for safe stem installation, it also allows the secure compression of headset bearings when the steerer top cap is screwed into it. But, unlike a lot of other compression bungs, it features a channel running through it that aids the routing of dynamo power cables, which then exit through the port in the top cap to

unlike a lot of other compression bungs

1743 g (584

Forged and CNC machined Aluminium

10 mounting bolts

as much at home on a high end carbon road bike as it is on a retro 90's mountain bike

Premium lightweight aluminium cups meet sealed bearings

For multiple areas of application

LYER is a robust and versatile aluminium crankset with a 30mm spindle and is made for use on road-orientated bike frames with BB shells up to 86

it was effective at damping vibration from the gravel roads

SD-HC-009 Acceleron rear hub endcap for 12 mm through axle

Its laterally positioned tubes are great for strapping a multitude different loads

and when pedalling on rough surfaces