Cube Nuroad Seat Post Clamp Replacement Bolts
If you are riding a Cube Nuroad with integrated seat post clamp, you might experience rounded bolts too. Don't worry, there is an easy fix for this that doesn't cost much and promises a long-lasting solution.
My everyday bike is a Cube Nuroad Pro Fe from 2021. It's an incredibly good-valued bike that cost me around $1800 and weighs 11.9 kg including fenders, a pannier rack, a hub dynamo and build in lights. To me, it's basically the perfect all-year, every day grocery run, and commuter bike.
Besides all the nice features, the Nuroad has an integrated seat post clamp that gives it a modern look. Unfortunately, the default bolts used for the seat post clamp are made from relatively soft material to prevent over-torquing them. Over the time, the bolts started to be rounded and looked hideous at some point. After some research online, I figured out that I wasn't the only one having the issue. It didn't take long to figure out that I was looking for a M5x8 bolt (5 mm in diameter and 8 mm in length). Since I would rather not replace my rounded bolts with the same bolt again, I was looking for a new solution. On AliExpress, I found a Manufacturer called Wanyifa selling nice-looking titanium bolts, that are available in different colors and cost between $2-3 per piece.
In contrast to the original seat post clamp bolts, the Wanyifa bolts come with a round head, which, in my opinion, isn't an issue at all. There are different bolt head styles available if you might be looking for something else.
Wanyifa Titanium Bolts
Use m5x18 bolts as replacement for the original Cube Nuroad seat post clamp
The original seat post clamp bolts also use a small rubber o-ring to prevent water from entering the seat tube. I encourage everyone to check whether the o-rings are still in good condition. You can find a replacement for the o-ring on AliExpress for little money as well. Just make sure to order an M5 o-ring.
In the end, I was pretty happy with my solution to the rounded seat post clamp on my Cube Nuroad bicycle. There wasn't really a weight saving compared to the original bolts, given the reduced weight of the titanium is equalized with the bigger bolt heads. Nevertheless, the new bolts are for sure made from a harder material, promising a longer lifetime even if you are working with lower quality multi tool while on the road. 😇
New Wanyifa seat post clamp bolts
Conclusion
Using Wanyifa titanium bolts, I found a perfect replacement for my rounded seat post clamp bolts on my Cube Nuroad Pro Fe bike. The new bolts are for sure of much higher quality than the soft original bolts.
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