How long do Shimano hubs last?
Yup. Once a year for some folks is 1500 miles, and for others it is 10,000 miles. Local conditions have a big influence, and front hubs stay a LOT cleaner than rear hubs.
When should a bike hub be serviced?
If your wheels feel rough when you spin them, it’s time to service the hubs on your bike. Usually the problem will be caused by wear in your bearings or by the ingress of water and grime.
Should I grease cassette hub?
The freehub pawls and bearings operate only while the bike is coasting. Because of this, bicycle grease is typically not required inside a freehub. Most manufacturers recommend liquid lubricant for the inside of the freehub. With enough use, the freehub will simply wear out.
Should you grease the freehub?
Can you service a Shimano freehub?
Much of the process is similar to a hub overhaul. To service the freehub, begin by removing rear cogs. The common Shimano® freehub uses internal loose ball bearing, pawls and springs. However, if the bearings are worn out and require replacing, it is very likely the entire freehub is needing replacement.
Are Shimano wheel hubs good?
Shimano hubs are very reliable and very good as the other posters have pointed out. But they do require extra maintenance for the bearings and grease (and all but the inner cones are replaceable).
Should I oil my cassette?
Condensed answer: The cogs of a bike cassette do not require lubrication due to their structure and function. Lubricating them can cause harm by creating a sticky layer attracting dirt.
How do you overhaul a Shimano front hub?
A smear of grease first on the cups inside the hub and then a squirt on the bearings and you’re ready to reinstall the seals and slide in the axle. Aside from the axle, these are all the parts you need to overhaul the front hub.
How big are the bearings in a Shimano hub?
The bearings in a Shimano rear hub are ¼” in diameter and each race contains 9 bearings. Front hub is 3/16″. Expect to pay around the £/$5 for good quality bearings, Grade 100 or better (try SJS Cycles in the UK).
What do you need to service a Shimano freehub?
To service the freehub, begin by removing rear cogs. The common Shimano® freehub uses internal loose ball bearing, pawls and springs. Be aware that it is not recommend to completely dismantling the freehub itself. There are no parts available, such as the pawls or springs.
Where is the cone on a Shimano hub?
The cone is fixed on the left side of the front hub axle for simplicity. When I got in touch with Shimano about sourcing replacement bearings, which are caged in nylon rather than loose, they wanted to make sure I had all the right tools.