Kovabikes - From a Thesis Project to Producing Bikes!

Thanks so much! Confirms my suspicions that it is not in my discretionary frame building budget :rofl:

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Second shipment of 55 parts came from Rapiddirect. Incredible prices again, along with precise tolerances and the fitment of everything is per-fect.

I’ll make a trip today to our partners workshop who we have collaborated with for the duration of the project. Front triangle production starts soon. Hopefully we have some full frames ready to test in the next 30 days.

And of course I wouldn’t make a post without some shiny parts, enjoy!

The mainpivot axle and rear triangle bridges are 316L for longevity and strength. One could also use aluminum, titanium etc. but I chose to test this material this time as I’m not really worried about weight that much in prototyping.

We also came up with a fixture that centers the main pivot point and aligns the shock mount parallel to it. This way we don’t have to have external fixturing and jig pieces that inevitabily require more design practice and custom fixture plates to house all of this. Maybe for serial production it would be ideal to have a custom fixture set to ensure repeability, but prototyping needs to be fast and iterative.

Subscribe, like and hit the bell button (like a proper influencer would say)

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I decided to give these new high volume air shocks a try and sourced a vivid in 230x65mm size:


I really appreciate the fact that I can dial the sag fast in a new bike with air. I’m also prone to losing bodyweight in the summer, so I appreciate that I don’t have to swap out coils since I ride multiple bikes around the year. If someone has experience or setup tips for higher volume shocks, let me know.

There were some troubles fitting the pinion welding jig to our bb structure for assembly, but that is being sorted with some custom tooling. Everything else for now seemed to be feasible in real life as it was designed. This means that the welding/soldering of frames can start as soon as we get some schedules to match.

More pics soon.

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Frames are now being manufactured! Already so excited for the summer as I got to test out a pinion gearbox. I am really impressed with the tech and the transfer of weight from the wheel to the BB. It makes so much sense in every way, I don’t think I’m ever going back to a casette unless I choose to swap E-bikes before gearbox Eebs are relevant.

I also bought an action camera, the DJI osmo action 4 to film some footage about these bikes.

I’ll perhaps film some short clips today and practice editing. I’ve used capcut before but I heard it’s impossible to use nowadays with the watermarks etc. I downloaded davinci resolve.

Frame color still undecided. Leaning on white. Let me know which one would look cool if you have ideas.

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