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earleb Added a reply to Frame Design

11/14/2023 12:40pm
Norco have been moving the main pivot to vary the CS length for many years now. Owen of Forbidden was a designer at Norco when they started doing it.

earleb Added a comment about bike check Rå 12

11/1/2023 9:58am
Great looking bike. Really like the coaxial rear brake mount.
This bike check has 8 comments.

earleb Added a reply to 2024 TEAM RUMORS

10/26/2023 3:43pm
SRAM's "mtb brand team" is based out of a little office here in North Vancouver. Gwin to SRAM / Rock Shox for 2024.

earleb Added a reply to Compliant mechanisms in suspension frame design?

10/26/2023 3:23pm
I've been down a whole bunch of rabbit holes looking at ways to apply compliant mechanisms to a suspension layout. Countless hours in linkage, numerous scientific papers read, and much daydreaming. Some applications. https://www.instagram.com/p/Cq2pj7SJ-Xb/ Two pivots replaced with the flex of a tube. https://www.instagram.com/p/CtPAC95p1qy/?g=5&img_index=1 3d printed flex dropouts https://www.instagram.com/p/CeT-oDVBcpN/?img_index=1 Possible application would be to replace the slider mech on Arc8...

earleb Added a reply to Frame Design

10/26/2023 10:03am
No current plans to build for sale. MK5 is in the works. Take Mk3 and Mk4 and smash them together you get Mk5, I need to finalize some flat sheet metal design for the shock tunnel and get that off to Send Cut Send. When talking frame design for me the question is what are the design goals? I started...

earleb Added a reply to Frame Design

10/25/2023 1:51pm
It's the pull link under the bb they are trying to patent, or rather the kinematics and adjustability they can get from it.

earleb Added a reply to Frame Design

10/25/2023 8:16am
You could also be like Specialized and copy someone else's homework and the patent it as your own.

earleb Added a reply to Frame Design

10/22/2023 10:01am
How would you go about this when you have no fixed points on a clean sheet build? The number of variables seems like it would take much longer thorough out an idea. With Linkage you can quickly moch something up and see what your general kinematics would look like and decide if it's worth more time.

earleb Added a reply to Frame Design

10/21/2023 10:24am
Fusion has free options for students and personal non commercial use.

earleb Added a reply to Frame Design

10/20/2023 11:20am
All fabrication done by myself in the garage. I have small benchtop mill, benchtop lathe, and an oxy-propane brazing set up. Jig is also garage made out of cold rolled steel a design copied from a number of Colorado builders that use a similar design. The first single pivot frame was build with hand files, hacksaw and a vise. No...

earleb Added a reply to Frame Design

10/20/2023 9:49am
First rule of frame design, ignore marketing crap. Compare a whole bunch of different designs in Linkage and realize that everyone is slowly converging on the same thing. The window of preferred anti-squat and leverage ratios is narrowing in on roughly 100% anti-squat at sag and a LR of 20-25% linear progression starting around 2.8 to 3.0. Anti-rise seems to...

earleb Added a comment about press release Lapierre Introduces the GLP III

10/11/2023 11:17am
Nope doesn't look like a regular bike. I kinda like it. I do like the philosophy behind why it looks like it looks. Centralize the mass to keep weight off the front end placing handing characteristic above looks.
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This press release has 12 comments.