Scorpion Helmet Communication Campatibility Chart

*:speaker pockets (included with all C110) need to be properly installed for any communication kit to mount to this model.
**:If using a clamp style mounting bracket, a small notch to the bottom plastic cosmetic trim may be necessary to install.
Manufacturer's Suggested Size Chart (Not a guarantee of fit) 
WARNING - ScorpionEXO does not recommend operating any communication device while using a motor vehicle.
Scorpion recommends referring to your communication manufacturers owners manual for proper installation and operation
Models Cardo G9 Cardo Q3 Sena SMH 10/R SENA SMHS Interphone FSS J&M Wired Kit BMW Wired Kit
EXO-R2000 YES YES YES YES YES NO NO
GT3000 YES YES YES YES YES NO YES
T1200 YES YES YES YES YES NO NO
EXO-1100 YES YES YES YES YES NO NO
EXO-900/900X **YES **YES **YES **YES **YES **YES NO
EXO-710 YES YES YES YES YES NO NO
EXO-500 YES YES YES YES YES NO NO
EXO-R410 YES YES YES YES YES NO NO
CT220 YES YES YES YES YES YES NO
EXO-250 YES YES YES YES YES YES NO
EXO-C110 *YES *YES *YES *YES *YES *YES NO

Scorpion Helmet Sizing

Manufacturer's Suggested Size Chart (Not a guarantee of fit) 
Size Inches
XS 20(7/8) - 21(1/4)
SM 21(5/8) - 22
MD 22(7/16) - 22(13/16)
LG 23(1/8) - 23(5/8)
XL 24 - 24(3/8)
2XL 24(13/16) - 25(3/16)
3XL 25(9/16) - 26