Freehubs are one of those components that many riders ignore when it comes to maintenance. Much of that hands-off approach stems from the time when Shimano freehubs were the only game in town, and servicing them required disassembling the hub and dealing with loose ball bearings and temperamental shields. But now that many freehubs can be removed sans tools (or with a couple of allen wrenches), there’s no excuse to ignore your bike’s freehub.
Choosing the correct lube for your particular freehub is essential for optimal performance. Using a lube that’s too thick or heavy can prevent the pawls from engaging properly, and lightweight lubes can be easily displaced (or migrate into the hub’s bearings). Whether your freehub requires grease, or an oil-type lube, Dumonde Tech has you covered with their line of freehub lubes.
Dumonde’s Freehub Oil is designed for hubs that use individual pawls such as those found on the BikeHubStore freehub pictured below. Unlike thicker lubes or greases, the low-friction oil is light enough that it won’t gum up the pawls or springs, yet still offers protection against wear and friction. We tested the Dumonde Tech Freehub Oil on hubs from BikeHubStore, HED, Mavic, Rolf Prima, and White Industries. In each case, the Dumonde-treated pawls ratcheted freely (even in sub-freezing temperatures). Inspecting the hubs after 200-300 miles of use revealed no degradation or swelling of the hubs’ seals.
For freehubs that require grease, Dumonde Tech offers their aptly-named Freehub Grease. While thicker than the company’s Freehub Oil, the lightweight grease has a flow point of -30 degrees, making it suitable for a wide range of operating temperatures. We found that Dumonde’s Freehub grease did an excellent job adhering to the star ratchets used by DT Swiss, but unlike more viscous greases, didn’t become thicker or stickier with use. It’s always best to follow hub manufacturers’ recommendations on grease volume, but we found that a little Dumonde Tech grease went a very long way.
Do these specialty lubes work better than conventional oils or greases? After months of testing, we’d have to say that they do. The Dumonde-treated freehubs ran smoother, quieter, and were consistently more reliable. But don’t just take our word for it, Dumonde Tech’s freehub lubes are used and endorsed by companies such as Crank Brothers, DT Swiss, Industry 9, Profile Racing, Ritchey Design, and Stans’s NoTubes.
Disclosure: Dumonde Tech provided review samples for this article, but offered no other form of compensation for this review.