Brompton 1 speed and 2 speed chain tensioners

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12boy

Guru
Location
Casper WY USA
Does anyone know if there is any difference other than flanged pulley wheels (2 speed) and unflanged (1 speed)? Except for the sliding flanged pulleys they seem identical, which would indicated that if pulleys were replaced on a 1 speed it would work for a 2 speed given that the other necessary parts were installed.
 

Brommyboy

Über Member
Location
Rugby
From memory I would suggest that the hole through the wheels are different as one slides on a plastic shaft for the derailing mechanism while the other rotates on a metal sleeve.
 
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