Description
The SMART HJC 2nd generation premium Bluetooth communication system models implement an all-in-one design, that is fully integrated into the helmet, allowing you to feel the optimal weight balance and aerodynamic performance while riding. Compatibility: HJC RPHA 91 helmet HJC RPHA 71 helmet HJC RPHA 31 helmet HJC i71 helmet...
HJC Smart 21B Communicator - BT021B00MBK0 Item # 928536
Description
The SMART HJC 2nd generation premium Bluetooth communication system models implement an all-in-one design, that is fully integrated into the helmet, allowing you to feel the optimal weight balance and aerodynamic performance while riding.
Compatibility:
- HJC RPHA 91 helmet
- HJC RPHA 71 helmet
- HJC RPHA 31 helmet
- HJC i71 helmet
- HJC i91 helmet
- HJC F71 helmet
Part Numbers for HJC Smart 21B Communicator - BT021B00MBK0
Reviews
Rated 3 out of
5
by
Anonymous from
Great when it works….
My husband and I have been out for random day rides and noticed the connectivity is sporadic….even when I am directly and closely behind. We recently completed a 4 day trip and connectivity was a major issue and twice became a major problem. They were easy to install as they were designed for my helmet but I’m thinking of trying another system. This one just isn’t reliable.
Date published: 2025-08-11
Rated 5 out of
5
by
Bisser Borissov from
Amazing product!
Great product - I have perfect, clear and loud sound.
Date published: 2024-06-17
Questions
Is the HJC Smart 21B compatible with other Sena communicators?
Yes, it is compatible.
Date published: 2023-08-10
Does this have FM radio and how do you access it?
It does not have FM radio. You can view the instructions for the product here: https://oem.sena.com/hjc/documents/UsersGuide_SMART_HJC_21B_1.0.0_en_220628.pdf
Date published: 2024-09-21