smutchin
Cat 6 Racer
- Location
- The Red Enclave
Not sure if this is a Brompton specific problem but...
About six weeks ago, I started to experience a strange sluggishness from my Brompton transmission while riding along, which soon became total seizure. Inspection revealed that the plastic retaining cup on the non-drive side of the bottom bracket had unscrewed itself and jammed the crank.
The bottom bracket was probably overdue being replaced anyway, so I fitted a new one.
This morning, exactly the same problem happened again.
Any ideas why this might be happening? And how to prevent it?
d.
About six weeks ago, I started to experience a strange sluggishness from my Brompton transmission while riding along, which soon became total seizure. Inspection revealed that the plastic retaining cup on the non-drive side of the bottom bracket had unscrewed itself and jammed the crank.
The bottom bracket was probably overdue being replaced anyway, so I fitted a new one.
This morning, exactly the same problem happened again.
Any ideas why this might be happening? And how to prevent it?
d.