aceoffix wheel pulley chain tensioner silver folding bike bearing

brand: aceoffix
material: aluminum alloy cage + nylon gear

compatible with original brompton tensioner as well as aceoffix lightweight tensioner
weight 48g
up to 6 speed

bearing mount on the gear internal, ensure when gear work the shell no movement only gear roll
compatible for 2speed, 3peed, 4 speed
compatible with original brompton tensioner
nylon gear reduce noise during working
package include: 1pair tensioner wheel

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