I’ve had issues with all of the revisions of the timber Bell. The only one I’ve not tried yet is the rebuild able yew version.
I rebuilt three, failed, older Timber Bell models using the Yew spare parts/repair set. Pro tip: the older bell has a slightly deeper, more melodic tone than the latest version, which is a little higher pitched and more, erm, ‘demanding’ in tone. I prefer the sound of the original bell, though I get it’s a bit of a nuanced thing.
It’s an easy procedure bar filling a small additional slot in the hole in the top of the bell unit and takes about five minutes to do. There’s a YouTube instruction video and it’s reassuring to know that if the bell does break, I can simply rebuild it with spare bits.
So far my re-worked bells have all been fine, no switch slip or breakages, the switch mechanism has been re-designed and has a sprung detent in it, or something, I’n not an engineer, but it seems to work fine. The kits cost, from memory, 10USD, I bought them direct from the States – the Timber Bell guys were super helpful and postage wasn’t insane – but they may now be available from the UK stockists. Worth thinking about if you have an older Timber bell. Strictly speaking it’s not possible, but like I said, all you have to do is use a small file to create an extra notch in the top of the brass bell, which is easy and quick.
The missus has one of the Granite bells and it’s definitely not as loud as the Timber one ime anyway. I prefer the latter.
The only downside for me in the Peak is that in wet conditions, the inside of the bell gets coated with grit thrown up from the trail and the sound becomes muffled. Also, the edge of the bell is quite sharp and has the potential to make a nasty slice in your leg if you crashed on it, says the man who made a hole in his knee with a Knog Oi Deluxe last year 🙁