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Set of 5 bolts, for Brompton detachable Spider Chain-Ring

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The "spider" chainring introduced in 2013 has a detachable chainring, held in space by 5 bolts. This is a replacement set of those 5 bolts.

Brompton chain ring bolts

Set of 5 chainring bolts for Brompton detachable (spider) chain rings introduced in 2013

These 5 bolts fix the chain ring onto the spider crank

Tighten to 10Nm

Brompton 2020 Q part code: Q100217
Brompton part number: 9010195
Brompton Q part code: QCHRINGBOLTS-SPI 

The below video shows the chain ring bolts in action