Is this normal?

[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

[CaseyClarke]

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

[Cant Climb]

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.

[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.

[CaseyClarke]

@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.

[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.

[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.