Originally Posted by Xanti Andia
Looking at the specs of the Mocha, I see that there is a head angle difference, 73 deg for Speedster, 71.5deg for the Mocha. [snip] So here we have a difference, but I don't have a scale as to how much of a diference is the 1.5 deg.
Here's the deal... and the differences:
1 - Wheel Size
2 - Compoments
3 - Price
For S&S models, all three frames use the same Reynolds 725, heat treated tubing specifically designed and butted per Co-Motion's specifications for use on Co-Pilot tandems. It's noted that the standard, non-S&S Mocha & Speedster framesets use somewhat lighter Reynolds 631, air-hardening tubing, whereas the Primera continues to use the Reynolds 725, heat treated tubing frameset.
The Co-Motion Mocha road is a 26" version of the Speedster, with a few minor component differences. The head tube and fork rake have been set to yield Co-Motion's trademark handling.
The Mocha & Speedster have similar component groups (Ultegra/XTR) with a few differences for cranks, hubs, etc. The entry-level Primera's components (Tiagra/105/XT) are a somewhat lesser grade. A summary of the three component groups is in the attached .jpg.
Just going off of Co-Motion's web site, Mocha lists for $300 more than a Primera and a Speedster lists for $655 more than a Mocha. Without getting into too much detail, if you take the time to run the cost of the frames and quantify the component cost differences, you'll find the Mocha is an outstanding value. Interestingly enough, the Mocha was priced at nearly the same cost of the Speedster in previous years.