Alpinestars

Alpinestars Nucleon KR-1 Cell Back Protector - Without Straps

Name: Alpinestars Nucleon KR-1 Cell Back Protector - Without Straps
Brand: Alpinestars
SKU: APNP03T-X001-Y005
Price: 149.95 USD
Availability: InStock

Red/Black

It appears you may have javascript turned off in your web browser, or are using a browser that does not support javascript. You must enable javascript to use our site. For questions call us at 1-888-676-8853.

XS S M L XL

Quantity

Item #APNP03T

Founded in 1963, Alpinestars has built a reputation of innovation and prestige. Now, fifty years later, Alpinestars is synonymous with quality, protection, technology and style. Alpinestars develops world-class technical apparel and footwear for all forms of motorcycling, auto racing and action sports as well as offering a large range of stylish casual clothing.

The Nucleon KR-R Cell is an innovative Level 2 CE Certified track and race back protector.
Developed in three waist-to-shoulder dimensions in order to cover all body sizes.
The new Cell Technology back protector is constructed from a high-performance polymeric material blend for optimized flexibility and excellent weight saving properties.
Extended lower back protector offers more protection to the rider.
Highly perforated for maximum breathability and ventilation.
The ergonomically designed protector contours to the natural curve of the back ensuring an optimum fit while riding.
Horizontal flexion grooves for an adaptive fit in different riding positions.
Compatible with the Nucleon KR-TB protector for extended lower spine protection.
Height adjustable kidney belt featuring dual hook and loop closure system for easy, secure closure.
Soft Bio-Foam padded chassis for maximum comfort.

Report Incorrect Product Information

Write Your Review

There have been no questions asked about the Alpinestars Nucleon KR-1 Cell Back Protector - Without Straps.

ALPINESTARS PROTECTION

Knee Guard
Body Armor
Bionic Neck Support
Youth Bionic Neck Support

KNEE GUARD

Size	Joint Width
Small	3.27 - 3.54in (8.3 - 9.0cm)
Medium	3.54 - 3.90in (9.0 - 9.9cm)
Large	3.90 - 4.37in (9.9 - 11.1cm)
X-Large	4.37 - 4.90in (11.1 - 12.4cm)

BODY ARMOUR

Size	Euro	US	Chest	Waist	Height
X-Small	44	34	33 7/8 - 35 3/8in (86 - 90cm)	28 3/8 - 29 7/8in (72 - 76cm)	5'4" - 5'5"
Small	46	36	35 3/8 - 37in (90 - 94cm)	29 7/8 - 31 1/2in (76 - 80cm)	5'6" - 5'7"
Medium	48	38	37 - 38 5/8in (94 - 98cm)	33.5 - 35.0in (80 - 84cm)	5'7" - 5'8"
Large	52	42	40 1/8 - 41 3/4in (102 - 106cm)	35.8 - 37.4in (88 - 92cm)	5'11" - 6'
X-Large	54-56	44-46	41 3/4 - 42 7/8in (106 - 114cm)	36 1/4 - 39 1/4in (92 - 100cm)	6' - 6'3"
2X-Large	58	48	44 7/8 - 46 1/2in (114 - 118cm)	39 1/4 - 41in (100 - 104cm)	6'3" - 6'5"
3X-Large	-	-	49.2 - 50.8in (125 - 129cm)	42.9 - 44.5in (109 - 113cm)	6'3" - 6'4"
4X-Large	-	-	51.6 - 53.1in (131 - 135cm)	45.3 - 46.9in (115 - 119cm)	6'4" - 6'5"

BIONIC NECK SUPPORT

US Size	Chest	Chest Thickness	BNS Size
42	32.3 - 33.9in (82 - 86cm)	Slim	X-Small
		Normal	X-Small
		Barrel	Small
44	33.9 - 35.4in (86 - 90cm)	Slim	Small
		Normal	Small
		Barrel	Small
46	35.4 - 37.0in (90 - 94cm)	Slim	Small
		Normal	Small
		Barrel	Medium
48	37.0 - 38.6in (94 - 98cm)	Slim	Small
		Normal	Medium
		Barrel	Medium
50	38.6 - 40.2in (98 - 102cm)	Slim	Medium
		Normal	Medium
		Barrel	Large
52	40.2 - 41.7in (102 - 106cm)	Slim	Medium
		Normal	Medium
		Barrel	Large
54	41.7 - 43.3in (106 - 110cm)	Slim	Medium
		Normal	Large
		Barrel	Large
56	43.3 - 44.9in (110 - 114cm)	Slim	Large
		Normal	Large
		Barrel	Large
58	44.9 - 46.5in (114 - 118cm)	Slim	Large
		Normal	Large
		Barrel	X-Large
60	46.5 - 48.0in (118 - 122cm)	Slim	Large
		Normal	Large
		Barrel	X-Large
62	48.0 - 49.6in (122 - 126cm)	Slim	Large
		Normal	X-Large
		Barrel	X-Large
64	49.6 - 51.2in (126 - 130cm)	Slim	X-Large
		Normal	X-Large
		Barrel	-
66	51.2 - 52.8in (130 - 134cm)	Slim	X-Large
		Normal	X-Large
		Barrel	-
68	52.8 - 54.3in (134 - 138cm)	Slim	X-Large
		Normal	-
		Barrel	-

YOUTH BIONIC NECK SUPPORT

Age	Chest	Chest Thickness	BNS Size
5	22.8 - 24.4in (58 - 62cm)	Slim	-
		Normal	X-Small+
		Barrel	2X-Small+
6	24.4 - 26.0in (62 - 66cm)	Slim	2X-Small+
		Normal	2X-Small+
		Barrel	2X-Small
7 - 9	26.0 - 27.6in (66 - 70cm)	Slim	2X-Small+
		Normal	2X-Small
		Barrel	2X-Small
10 - 11	27.6 - 29.1in (70 - 74cm)	Slim	2X-Small
		Normal	2X-Small
		Barrel	X-Small
12 - 13	29.1 - 30.7in (74 - 78cm)	Slim	X-Small
		Normal	X-Small
		Barrel	X-Small
14 - 16	30.7 - 32.3in (78 - 82cm)	Slim	X-Small
		Normal	X-Small
		Barrel	X-Small

BODY ARMOUR

Intl. Size	US Size	Age	Chest	Waist	Hip	Thigh	Inseam	Outer	Height
Small	22	6 - 7	23.8 - 25.8in (60.5 - 65.5cm)	21.25 - 22.875in (54.0 - 58.1cm)	26.75 - 28.375in (67.9 - 72.1cm)	-	-	-	-
Medium	24	8 - 10	25.75 - 27.75in (65.4 - 70.5cm)	22.875 - 24.75in (58.1 - 62.9cm)	28.75 - 29.875in (73.0 - 75.9cm)	16.5 - 17.375in (41.9 - 44.1cm)	22.25 - 24.25in (56.5 - 61.6cm)	16.875 - 18.5in (42.9 - 47.0cm)	3'11'' - 4'3'' (120 - 130cm)
Large	26	11 - 12	27.75 - 29.75in (70.5 - 75.6cm)	24.75 - 26in (62.9 - 66.0cm)	29.875 - 31.5in (75.9 - 80.0cm)	17.375 - 18.125in (44.1 - 46.0cm)	24.25 - 26.125in (61.6 - 66.4cm)	18.5 - 20.375in (47.0 - 51.8cm)	4'3'' - 4'9'' (130 - 125cm)
X-Large	28	13 - 14	29.75 - 31.75in (75.6 - 80.6cm)	26 - 27.5in (66.0 - 69.8cm)	31.5 - 33.125in (80.0 - 84.1cm)	18.125 - 18.875in (46.0 - 47.9cm)	26.125 - 28.125in (66.4 - 71.4cm)	20.125 - 21.875in (51.1 - 55.6cm)	4'9'' - 5'3'' (124 - 159cm)

WAIST: Measured around the natural wasteline.

INSEAM: Measured from the crotch to the bottom of the leg.

Product Variant	Manufacturer Part #
Red/Black / X-Small	6505020-9-XS
Red/Black / Small	6505020-9-S
Red/Black / Medium	6505020-9-M
Red/Black / Large	6505020-9-L
Red/Black / X-Large	6505020-9-XL

Alpinestars Nucleon KR-1 Cell Back Protector - Without Straps

Find More