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Shimano FH-M590 freehub body
Disc brake Center lock
Question about Shimano FH-M590 freehub body
Ben op zoek naar een freehub voor een Giant Speeder Lite approx. 1980, 7-speed. De huidig hub heeft 35 mm als totale hoogte. ?? Welke nieuwe hub past daar op? Looking for a new hub for a Giant Speeder Lite, approx. 1980, 7 speed. The present has a total height of 35mm. Who can help me with the correct nummer I should buy? Thanks an kind regards, Bert, NL
Helpful answer
The Shimano FH-M590 freehub body is not suitable for a Giant Speeder Lite (built around 1980, 7-speed, 35 mm hub height), as it is only designed for modern cassette hubs and is not designed for sprockets.
Older 7-speed freewheel hubs generally use a standardised sprocket thread. This means that, in principle, any 7-speed sprocket with a suitable thread can be used, provided the installation width (usually 126 mm on older road bikes) and the overall height are compatible. According to my research, for your bike you need a classic 7-speed sprocket freehub, such as the Shimano FH-RM30 (7-speed) (https://www.galaxus.nl/de/s3/product/shimano-body-y3cc98050-67-fach-schwarz-nabe-freilauf-16264405).
Older 7-speed freewheel hubs generally use a standardised sprocket thread. This means that, in principle, any 7-speed sprocket with a suitable thread can be used, provided the installation width (usually 126 mm on older road bikes) and the overall height are compatible. According to my research, for your bike you need a classic 7-speed sprocket freehub, such as the Shimano FH-RM30 (7-speed) (https://www.galaxus.nl/de/s3/product/shimano-body-y3cc98050-67-fach-schwarz-nabe-freilauf-16264405).