The perfect saddle starts with an imprint of your butt @Mapdec
The perfect saddle starts with an imprint of your butt  @Mapdec
Uploaded April 2026 | Updated September 2026, 2 weeks ago
0The saddle is arguably the most critical and frustrating contact point on a bicycle. For decades, the industry standard has been "trial and error"—buying off-the-shelf shapes and hoping your anatomy conforms to the plastic.

In this video, we explore a technical shift: Additive Manufacturing (3D Printing) driven by biometric data. We take a deep dive into the Posedla "Joyseat" process, moving from the analog (the "Smiling Butt" foam impression) to the digital (flexibility and mobility data), and finally to the physical (a custom-mapped carbon lattice). This isn't just about a new seat; it’s about a closed-loop system designed to remove the guesswork from bike fitting.

In this technical look, we cover:

The Input: How the "Smiling Butt" kit captures sit-bone geometry and pelvic tilt.

The Translation: Turning personal mobility and riding style into a 3D-printable file.

The Output: A first look at the Joyseat 3.0—why a T-shaped design and a bespoke lattice change the ride feel.

The Field Test: Taking the custom build on a 140km "all-road" test from Kendal to Lockerbie in typical British conditions.

The Result: Why 3D printed saddles handle water better than traditional foam and the long-term "one-and-done" investment.

Is the future of cycling comfort found in a printer? We’re keen to hear your thoughts on custom-mapped tech in the comments.

#Mapdec #3DPrinting #BikeFitting #CyclingTech #Posedla #BespokeCycling

📍 Video Chapters (Timestamps)
00:00 The "Smiling Butt" Kit: Capturing the Data
00:44 The Digital Questionnaire & Mobility Tests
01:35 Making the Impression: The Process
03:22 Setting the Baseline: Current Saddle Geometry
04:46 Measuring Flexibility & Hamstring Tension
06:10 Custom Branding & Aesthetic Choices
07:03 Tricking the System? Honesty in Data
08:51 Unboxing the Joyseat 3.0: Anatomy in Carbon
10:07 Field Test: Kendal to Lockerbie (140km)
12:55 A Quick Note on Edible Packaging...
15:01 Post-Ride Analysis: Comfort vs. Discomfort
16:50 The 3D Lattice: Water Drainage & Tech Specs
18:30 Cost vs. Value: The "Trial and Error" Tax
19:32 How to Integrate Custom Saddles into a Bike Fit
20:18 The Future of Contact Points
The perfect saddle starts with an imprint of your buttA light carbon bicycle… subscribe for the full review.829g Wheels: Engineering Genius or Race to the BottomOfficine Mattio investment.Looks like the world shortage of masking tape is back.Officine Mattio the politically correct bikes.Amateur Geometry Bikes 🤦‍♂️TRAILER: Exclusive tour of the TIME bikes factory.Maybe a 20 year old bike can still be fast... 💨My method for building bikes with no creaks, rubs or rattles.Why Your New Bearings Still Feel like CrapMore than just a house brand. Miche have a huge dealer network. Kleos 50 wheelset.@WilierTriestina
Mapdec Cycle Works |

The perfect saddle starts with an imprint of your butt

SHARE TO X SHARE TO REDDIT SHARE TO FACEBOOK WALLPAPER