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Is this normal?

Posted: December 17th, 2020, 4:47 am
by Donovan
Bike just arrived. Makes a thumping sound every rotation. Speed or resistance makes no difference.

Support suggested making some adjustments but with no effect.

Just wondering if this is normal.

Thank you.

Do I


https://youtu.be/Qoubjlcv2OM

Re: Is this normal?

Posted: December 17th, 2020, 2:44 pm
by CaseyClarke
Donovan wrote:
December 17th, 2020, 4:47 am
Bike just arrived. Makes a thumping sound every rotation. Speed or resistance makes no difference.

Support suggested making some adjustments but with no effect.

Just wondering if this is normal.

Thank you.

Do I

Unfortunately you’re one of many people affected by the dreaded knocking / clunking noise on every pedal revolution. There are literally hundreds of cases. We’re all very surprised Concept 2 haven’t remedied this issue yet. I’m on my sixth front end replacement. All mine have developed this fault within 4-6 months of use. If tightening all the suggested screws does no good then request a replacement front end under warranty.


https://youtu.be/Qoubjlcv2OM

Re: Is this normal?

Posted: December 17th, 2020, 2:55 pm
by Cant Climb
Donovan wrote:
December 17th, 2020, 4:47 am
Bike just arrived. Makes a thumping sound every rotation. Speed or resistance makes no difference.

Support suggested making some adjustments but with no effect.

Just wondering if this is normal.

Thank you.

Do I


https://youtu.be/Qoubjlcv2OM
Sorry to hear this. Please follow-up here after you contact them.

I bought one of the first BikeErg and that made me uneasy.
Issue with cranks and stem bolts being too tight and I couldn't remove or adjust.
They sorted me out pretty quickly.

Re: Is this normal?

Posted: December 27th, 2020, 2:48 am
by StevenWayne
@CaseyClarke...your experience, and those of many like you who have posted on the forum, actually swayed me completely away from buying a Concept 2 BikeErg. I couldn’t stand the bearings clunking or thumping.

Question: Since the issue may be a version 1.0 design issue, what will you and other owners do when the warranty is up? It’s two years, I believe. Thank you.

Re: Is this normal?

Posted: December 28th, 2020, 3:23 pm
by CaseyClarke
StevenWayne wrote:
December 27th, 2020, 2:48 am
@CaseyClarke...your experience, and those of many like you who have posted on the forum, actually swayed me completely away from buying a Concept 2 BikeErg. I couldn’t stand the bearings clunking or thumping.

Question: Since the issue may be a version 1.0 design issue, what will you and other owners do when the warranty is up? It’s two years, I believe. Thank you.
Frame parts is a five year warranty.

See here: https://www.concept2.com/files/pdf/us/b ... rranty.pdf

Not just a version 1.0 design issue. Still happening on the latter models. I assume a new warranty begins every single time they send you a new replacement front end.

Re: Is this normal?

Posted: December 28th, 2020, 6:34 pm
by StevenWayne
Thanks @CaseyClarke for the warranty information. I see that frame parts seems to cover it, and maybe "resets" time of coverage after each replacement, as you mention. Still happening on latter models, okay. Thanks.

Re: Is this normal?

Posted: December 30th, 2020, 4:24 pm
by johnlvs2run
Quoted from the warranty information here. <---
Concept2 will replace or repair, at our discretion, the frame parts listed below that fail due to a defect in materials or workmanship for a period of five years from date of purchase of your Concept2 BikeErg.