Normal freewheeling friction in Shimano Nexus 8? Service recommendations?
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I'll get a liter of 75W90 gear oil.
I wonder if the fact that the wheel stops spinning after just 5-6 seconds after one revolution of the crank by hand vs. ~15s on my big bike isn't simply/also due to the fact that the Nexus is on a Brompton, ie. 16" wheel instead of 26/28" → less inertia.
I wonder if the fact that the wheel stops spinning after just 5-6 seconds after one revolution of the crank by hand vs. ~15s on my big bike isn't simply/also due to the fact that the Nexus is on a Brompton, ie. 16" wheel instead of 26/28" → less inertia.
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There was no 75W90/140 gear oil in the shop, but there was ATF… which I used to give the SG-8R31 a bath.
And… it makes zero difference: In either speed 4/5, after giving one revolution of the crank by hand, the wheel still stops spinning after about 5-6 seconds.
If I get the opportunity, I'll ask a Brompton rider if an SG-C60xx (00, 01, 10, 11) offers less friction and is worth the expense + rebuilding a wheel… or it's just what happens when you stick it into a 16" wheel.
And… it makes zero difference: In either speed 4/5, after giving one revolution of the crank by hand, the wheel still stops spinning after about 5-6 seconds.
If I get the opportunity, I'll ask a Brompton rider if an SG-C60xx (00, 01, 10, 11) offers less friction and is worth the expense + rebuilding a wheel… or it's just what happens when you stick it into a 16" wheel.
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Out of curiosity, is it possible to just replace the plain bearings found in lower-end Nexus with needle bearings found in higher-end Nexus, or at worst, change the bearings + gears?
Are the dimensions identical, so it's plug and play and I could keep the rest of the hub?
Are the dimensions identical, so it's plug and play and I could keep the rest of the hub?
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