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NUCLEON KR1 CELLi BACK PROTECTOR INSERT | RED / LARGE 180-195CM, image 1

Alpinestars

NUCLEON KR1 CELLi BACK PROTECTOR INSERT | RED / LARGE 180-195CM

Protection - StreetSKU AS650412000360

Cheapest we found

$99.95

at AMA Warehouse

$99.95 lowest$99.99 highest

2 recent in-stock prices · spread $0.04 (0%)

Based only on in-stock prices checked in the last 30 days. 4 stores checked; dates for every store are shown below.

Recorded store prices

Prices we recorded when we last checked each store for this exact variant.

AMA Warehouse$99.95CheapestIn stockExcite Motorsports$99.99In stockXPERT Moto Gear$97.95Out of stockCully's Yamaha$99.99Out of stockmay be out of date

Product details

ALPINESTARS NUCLEON KR1 CELLi INSERT - RED

The extremely lightweight Nucleon KR-1 CELLi insert features an articulated back shell plate for flexibility and riding fit, plus an advanced micro-structure cell design for efficient impact energy absorption and high levels of airflow.
  • The super lightweight back protector insert is developed in three waist-to-shoulder dimensions in order to cover all body sizes.
  • High performance polymeric material blend Cell Structure for optimized flexibility and excellent weight saving properties.
  • The back protector’s design changes from the centre towards the outside providing the perfect balance between energy absorption and flexibility.
  • Horizontal flexion grooves for an adaptive fit in different riding positions.
  • Soft comfortable padding on the body side of the protector offers breathability and rider comfort.
  • Racing suit compatibility.

Price history

Recorded changes for this exact variant.

Step chart of dated store-price observations. Solid lines show confirmed crawl coverage, dashed lines show overdue missed-check spans, and every line stops at the last confirmed price.

  1. 1AMA Warehouse1 point · last checked 22 Aug 2026
  2. 2Excite Motorsports1 point · last checked 22 Aug 2026
  3. 3XPERT Moto Gear3 points · last checked 22 Aug 2026
  4. 4Cully's Yamaha2 points · last checked 14 Aug 2026

Solid steps show periods confirmed by the store’s change-only price history and completed crawl record: if the price had changed at a check, another point would appear. Dashed steps show overdue periods with no completed crawl confirmation. Every line stops at that listing’s last confirmed check and is never extended to today. Prices are not live and may have changed since the last point shown.

How we collect and compare prices
Cheapest we found: $99.95 · AMA WarehouseJump to comparison