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HJC Smart 21B Bluetooth Commnunication System
$219.99
HJC Smart 21B Bluetooth Commnunication System-0721
COLOR:
SIZE:

HJC Smart 21B Bluetooth Commnunication System

The SMART HJC 21B is the 2nd Generation Standard Bluetooth Communication System model that supports 21B compatible HJC helmets, with structural interfaces that users can easily mount on HJC helmets.

Based on the BT 5.1 low power system, the 21B offers Bluetooth 4-way intercom functionality, with over 22 hours of talk time.

The enhanced sound provides users with an HD speaker, to enrich mid-to low-pitched sounds.

  • Bluetooth 5.1
  • Advanced noise control
  • Intercom 1600mm
  • Voice prompt
  • Universal intercom
  • HD speakers
  • Audio multitasking
  • 4 way intercom
  • Colors: Black
  • Sizes: One Size
  • SKU: 0721-1350

Shoei Helmets Mens Size Chart


HOW TO DETERMINE YOUR HELMET SIZE

(H) HEAD

Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.

SIZE HEAD (CM) HAT SIZE HEAD (IN)
2XS 51 - 52 6 3/8 - 6 1/2 20 1/8 - 20 1/2
XS 53 - 54 6 58 - 6 34 20 78 - 21 14
SM 55 - 56 6 78 - 7 21 58 - 22
MD 57 - 58 7 18 - 7 14 22 12 - 22 78
LG 59 - 60 7 38 - 7 12 23 14 - 23 58
XL 61 - 62 7 58 - 7 34 24 - 24 38
2XL 63 - 64 7 78 - 8 24 34 - 25 18
3XL 65 - 66 8 18 - 8 14 25 58 - 26
4XL 67 – 68 8 38 - 8 12 26 38 - 26 3/4
5XL 69 – 70 8 34 - 8 34 27 14 - 27 5/8
SIZE HEAD (CM) HAT SIZE HEAD (IN)
XS 54 – 55 6 3/4 - 6 7/8 21 1/4 - 21 5/8
S 55 – 56 6 78 - 7 21 58 - 22
M 57 – 58 7 18 - 7 1/4 22 12 - 22 7/8
L 58 – 59 7 14 - 7 38 22 78 - 23 14
XL 60 – 61 7 12 - 7 58 23 58 - 24
2XL 62 – 63 7 34 - 7 78 2438 - 24 3/4
3XL 64 – 65 8 - 8 1/8 25 14 - 25 58
SIZE HEAD (CM) HAT SIZE HEAD (IN)
XS 54 – 55 6 3/4 - 6 7/8 21 1/4 - 21 5/8
S 56 – 57 7 - 718 22 - 2212
M 58 – 59 7 14 - 73/8 22 78 - 231/4
L 60 – 61 7 12 - 7 58 2358 - 24
XL 62 – 63 734 - 2478 2338 - 243/4
2XL 63 – 64 8 - 818 2514 - 255/8
3XL 65 – 66 81/8 - 81/4 2558 - 26
4XL 67 – 68 83/8 - 81/2 2638 - 263/4
5XL 69 – 70 83/4 - 83/4 2714 - 275/8

Shoei Helmets Mens Size Chart


HOW TO DETERMINE YOUR HELMET SIZE

(H) HEAD

Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.

SIZE HEAD (CM) HAT SIZE HEAD (IN)
YOUTH S 49 – 50 61/8 - 61/4 191/4 - 193/4
YOUTH M 51 – 52 638 - 612 20 - 2012
YOUTH L 53 – 54 658 - 63/4 2078 - 211/4
YOUTH S/M 49 – 50 618 - 614 1914 - 1934
YOUTH L/XL 63/8 - 61/2 638 - 612 20 - 2012

New or Brand New - Brand new item in original packaging (original manufacturer's warranty may apply).

Refurbished - Professionally restored and in perfect working condition. Original packaging may be missing or slightly damaged.

Used - Item has seen limited use but remains in good working condition. May show some limited signs of wear with small scratches or cosmetic blemishes. May arrive with damaged packaging or be repackaged.

Refurbished, Without Tags - Same as refurbished. Item may arrive with mising labels or tags.

Refurbished, Last Call - Same as refurbished. Last call or closeout item.

Product Image Color Size SKU Availability Price
Black Black One Size 0721-1350-00-HH In Stock $219.99

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