04-10-2022, 09:31 AM
IIRC, the RF1100 is a Snell 2010 helmet, while the R1200 is a Snell 2015 helmet. As such, both helmets are evaluated to the same impact energy loads and shock limits as a Snell 2020 rated helmet. The change in Snell criteria occurred between M2005 and M2010.
https://smf.org/docs/articles/mstds_cmp_2015.pdf
https://smf.org/standards/m/2020/M2020_Final.pdf
The noticeable design difference between the Rf1200 and Rf1400 is the "slip" liner which is intended to minimize rotational forces to the head. It'll be interesting to see how that works relative to the more complex MIPS (Bell) configuration. Preliminary SNELL testing using an unconstrained drop and slanted impact surface highlights some challenges of these design features.
https://smf.org/docs/articles/ICMS2021/S....FINAL.pdf
If you've ever dealt with hydrodynamic stern tube bearings, you might recognize the similarity to "being on the right side of the Stribeck curve".
https://smf.org/docs/articles/mstds_cmp_2015.pdf
https://smf.org/standards/m/2020/M2020_Final.pdf
The noticeable design difference between the Rf1200 and Rf1400 is the "slip" liner which is intended to minimize rotational forces to the head. It'll be interesting to see how that works relative to the more complex MIPS (Bell) configuration. Preliminary SNELL testing using an unconstrained drop and slanted impact surface highlights some challenges of these design features.
https://smf.org/docs/articles/ICMS2021/S....FINAL.pdf
If you've ever dealt with hydrodynamic stern tube bearings, you might recognize the similarity to "being on the right side of the Stribeck curve".
I knocked, but the door was open.......
Central PA: 2016 Lupin RS - Keys and no TPMS
Central PA: 2016 Lupin RS - Keys and no TPMS