Discussions by Rad Model > RadMini

Radmini clacking noise.

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RadMichi:
Hello Radmini owners,
I also recently got a Radmini (EU version).
So far I am also very satisfied, except for one thing I have a question for the Radmini owners.
When starting I have every time a rather loud clack. This clacking noise always comes when the chain is not under full tension, so if I do not fully pedal. Also when loosely pedaling it often clacks.
I find this a bit strange, because I do not know this from other wheels. It is somewhat annoying because it is quite loud.
I have watched a lot of videos of the Radmini before buying. Since that was never mentioned and I have never noticed that.
I have Radpowerbikes.eu also written about it.
There I was told that this is normal. It is the engagement of the chain.
Now my question to you: Do you also have this very clearly perceptible clacking when starting?
Thanks for sharing your experiences!
Many greetings,
Michael

vudude:
I have the CLACK!  Mine clacks while turning slowly. I believe it is coming from the front end, below the handle bars. Welcome to the forum.

Tony:
RadMichi, I experienced a bit of this when the bike was new. I think itís the pedals taking up the slack in the chain when the gears engage to drive foreword. I donít get it now, maybe my riding has improved. 
vudude, I get this small click clack from the lower front on small bumps. Not tracked it down yet.

JimInPT:

--- Quote from: RadMichi on June 23, 2021, 02:30:53 AM ---When starting I have every time a rather loud clack. This clacking noise always comes when the chain is not under full tension, so if I do not fully pedal. Also when loosely pedaling it often clacks.

--- End quote ---

Are you in the lowest gears (1 or 2) when this happens?  My Mini ST2 sometimes clicks, noticeably but not loudly, in the very lowest gears - my bike shop guy and I both think it's due to the chain being at a pretty severe angle to the front and rear sprockets in the lowest gears because the distance between them is so short (it's easy to see if you leave it in first gear and look down from above).  So the chain is trying (and usually failing) to slip off the rear sprocket to a higher gear.  I'm only rarely in 1st or 2nd gear; once I upshift the noise is gone as the chain angle straightens out.

It's just the bike's geometry and nothing to be done about it, if your issue is the same as mine, and it shouldn't be a problem.  If it happens a lot, perhaps your derailleur needs a bit of adjustment.

RadMichi:
Thanks to all for your answers!

The noise is present in all gears.
Some owners do not have any clacking noises at all.
Apparently, there is a difference in the processing.
I'll ask a bike dealer what he says about it.

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