• 200+ Top BrandsUK's largest range
  • Next-day Delivery7 Days a Week
  • 55,000+ Reviewsfrom bikers like you
  • 15+ Years OnlineTried, tested, trusted
  • Award WinningMCN retailer of the year
  • Click & CollectFrom a shop near you

200+ Top Brands

There simply isn't a better selection of biking brands anywhere in the UK and we're constantly updating every range to ensure you have the best choice available.

Next-day Delivery

It's simple, we're now shipping 7 days a week for delivery 7 days a week, so, whichever day you choose, you can have your order delivered the very next day! Order by 7pm Monday-Friday, 5pm on Saturday or 3pm on Sunday.

55,000+ Reviews

Whilst we know a bit about bikes and bike kit, the best road testers out there are our customers, real bikers, just like you. If you're looking for advice on what to buy, you'll find over 55,000 independent product reviews which we've posted, unedited, for all to see. Whether it's a question about sizing, quality or something else, our customer reviews are quite simply, the best place to start.

15+ Years Online

We've been serving the motorcycle community for more than 15 years now and in that time we've grown to be the largest online retailer of motorcycle clothing & accessories in the UK.

Award Winning

There's a reason why our competitors spend so much time watching what we do, we believe in customer service levels beyond the norm and we're always looking for ways to improve. In late 2013 we were recognised for this by the bike industry's No.1 publication, Motorcycle News. As retailer of the year, we feel it's our duty to constantly better our offering and if you have any ideas, we'd love to hear from you!

Click & Collect

If you can't be around to receive your delivery during the day, just use one of our simple click & collect options. We offer delivery to a shop local to you using both the UPS Access Point network and the DPD Pickup network. Most pick up points are open outside of normal working hours and will keep your package so you can collect at a time to suit you.

Alpinestars Nucleon KR-C Chest Protector - Black / White / Red

Nucleon chest protector for Alpinestars back protectors KR-1 and KR-2

View full details

Our price


Online Availability

Please select option above

Add to wishlist
Free Delivery & Returns
Seen it cheaper?
Get a price match
Quick find: 236855

Customer Reviews for Alpinestars Nucleon KR-C Chest Protector - Black / White / Red

Alpinestars Nucleon KR-C Chest Protector - Black / White / Red
May 16, 2018

Great product

Brought this chest protector to work with my KR-3 back protector, and let me use say if you've got one of the nucleon KR back protectors you need to get your self one of these well worth the investment, took a bit of time it fine tune the fit to my liking, now I forget that I'm wearing it. Really helps build confidence and makes you feel safe knowing your fully protected in the event of and accident. As of yet I have crash wearing the KR-C and hopefully won't be the build quality reassures me and I'm pretty sure it would protect me just fine if I was the crash.

Read more
Alpinestars Nucleon KR-C Chest Protector - Black / White / Red
April 30, 2016

Comfortable and breathable

The Alpinestars gear really is good. I bought this in union with the KR1 back protector which allows you to connect both together, like a backpack. It zips apart in the middle to get it off easily and there's plenty of small holes for air flow. Comfortable.

Read more
Alpinestars Nucleon KR-C Chest Protector - Black / White / Red
April 21, 2016

Peace of mind, all round protection

This piece of kit is a must for anyone on the road, it fits well and is the ideal combination to the KR-2 back protector which I also purchased. The two go hand in hand and make an ideal cage to feel protected. The kit does not move and stays in place and eventually molds itself to your body, which is when it then feels like you don't have it on. I have a very close fit 42 inch RST leather jacket and this fits under nicely as the back on the Jacket has the additional space to take the back protector, the chest protector fits snugly but not tight, so the moral of this is its not going to take up a lot of room so no need to go up a size on Jackets. Hoping I don't ever have to rate the protector after a fall but if that should ever happen the quality of the protector is such that I have faith that its going to offer some degree of protection. The overall quality is sound and is easier to use with it connected to the KR-2 back protector as it clips on and is then put on like a waistcoat with a front zip ... quality product from a quality company and really good value. Don't ride without one!

Read more
Alpinestars Nucleon KR-C Chest Protector - Black / White / Red
April 2, 2016

Great combination of protective & seamless

I have purchased numerous chest protectors, both inserts and clip on. This by far supersedes in all aspects including design/comfort & protection. Initially the fit felt good but not perfect, however, after wearing for several minutes the protector seemed to mould around my chest perfectly to the extent I almost forgot it was there. My initial concern was that it was slightly thicker than than the CE Level 1 approved protectors and it would not fit properly under my leathers as they are quite fitted, however, It was ideal for both road and track use as it was not intrusive at all and seemed to fit under my leathers perfectly. The only pre-requisite was that for best use you would also need to have the Alpinestars Nucleon KR-2 Back Protector to clip this on to (which I also ended up purchasing with no regrets...). Both this and the back protector where the perfect combination for under leather protection and the zip on the front of the chest protector made removing and wearing the protection even easier. Highly recommended as an all rounder and definitely great value.

Read more
Alpinestars Nucleon KR-C Chest Protector - Black / White / Red
June 30, 2015

Great design for a chest protector

I was considering buying this chest protector along with the KR 1 back protector for some time but now wish I'd bought it as soon as I saw it. They are fantastic and what a great idea from Alpinestars to connect the two. Very well made and very comfortable to wear not taking up too much space in my leathers. The chest protector actually feels better the longer I have it on with body heat helping it to form around me. I recommend this product for value for money,comfort,fit,and ease of use its so easy to use with a centre zipper.

Read more

Alpinestars Nucleon KR-C Chest Protector - Black / White / Red

  • Connection to the Nucleon back protectors KR-1 and KR-2
  • Highly vented and very lightweight
  • Central zip entry

The Alpinestars Nucleon KR-C Chest Protector features a convenient and versatile divided chest protector CE certified to level 1, this can be quickly and easily attached to the Nucleon KR-1 and KR-2 back protectors to provide superb all round protective capabilities.



Alpinestars, a truly world class brand of motorcycle apparel. Founded in the early 1960s by Sante Mazzarolo, Alpinestars has grown to be a world leading manufacturer of professional racing products such as leather jackets, jeans, boots and 1 piece suits. Whilst their leathers are worn by some of the biggest names in bike racing, they also specialise in high performance textile jackets, jeans and gloves. From F1 to Karting, the World Rally Championship to NASCAR, Alpinestars work with the very best drivers and riders to bring design innovations to all aspects of professional motor-sport.

See all Alpinestars products
Questions and Answers

Questions and Answers

  • May be a easy question, as not not say it will work with the KR-3, but is this because the KR-3 was not about when this was released? Will it work with KR-3?

    January 18, 2018

    The KR-C chest protector will work with the KR-3 back protector.

Ask a question

View similar products

Browse all Alpinestars Body Armour, Browse all Motorcycle Body Armour
What people say about us