Due to Material supply issues Rotobox production is now 8 to 10 weeks
Carbonin production will resume Aug 17th please allow extra time for non stock items to be produced after the European Vacation





Motorcycle Apparel Sizing & Return Policy
To ensure the best fit, please carefully review our sizing guide before ordering.
Do not assume your usual size based on other brands, as sizing can vary significantly between manufacturers. Measure yourself using a tailor’s tape and refer to our size chart to determine the correct size. Avoid delays in wearing your gear by ensuring the right fit before ordering.
Return Policy
Once tags have been removed or the item has been worn on a motorcycle, it cannot be returned. We strongly recommend keeping all tags attached and trying on the gear indoors or sitting on your motorcycle to ensure a comfortable fit before use.
We feel this is the only way to 100% guarantee that the riding and protective gear you purchase from our store has not been compromised in any way.
Following these guidelines will help ensure the best fit and a smooth purchasing experience.
We display live inventory for in-stock items. However, due to demand and sizing options, popular 4SR products can sell out. These items are restocked in our bi-weekly orders. If an item is out of stock, it can still be purchased and will arrive with our next order, typically within 2–3 weeks (excluding holiday periods).
Riding hard doesn’t mean making compromises. This two-piece suit is meant for all who take riding seriously and want maximum safety, comfort, and versatility. The upper part, which can also be worn separately as a motorcycle jacket, is designed to fit perfectly and does not restrict any movement. Thanks to the anatomical cut, stretch panels, and extended back, it works exceptionally as part of the suit as well as when connected to 4SR Kevlar jeans. Noticeably higher comfort is guaranteed by new perforation with double the surface area compared to previous models, and a revised cut at the waist, which fits better in the riding position. In shades of red, black, and dark silver, you’ll find the unmistakable signature of the “Diablo” series. In the two-piece version, you get everything in a substantial practical format.
We sew all our suits according to one manufacturing standard – the highest. That means whether you ride on the track every weekend or just occasionally on your favorite backroad, you always wear the best and safest gear we can produce. The two-piece RR Diablo II AR suit includes 13 ergonomically placed protectors, including knee sliders – equipment that elsewhere is often only available as an add on. Of course, we use the patented 4x stitched seam (even asphalt roads fear it).
Riding on the edge? Get your elbow ready!
The two-piece RR Diablo II AR is equipped with the improved Elbow down TECH system. If aggressive lean in angles suit you or you want to test your limits in safe conditions, the elbow sliders are ready for action. One pair of red sliders is included with the suit; additional sliders can be purchased separately in various colors.
4SR two-piece suit RR Diablo II AR Airbag Ready®:
What does 4SR have and others don't?:

| SKU: | 110122948 |
|---|---|
| Downloads: | 4sr custom suit measurements |
One of the best purchasing experiences I've had. Customer service and communication is excellent.
They're a little tricky to install if you leave the radiator on the bike, but doable with minimal tools. The fit and finish can't be beat.
professional and very nice conversation and customer service even i did some mistake and they fix it
thank you 🙏
Very happy with the shock. HHR was great!
Easy fast and what I wanted
Love it, wish it came in twill weave gloss but it is on sale and fit and looks amazing! Just ordered frame carbon fiber from here as well to match !
I ordered this part for my r6.
Got a email back about 4 days later saying I didnt order the correct lines for it.
HHR didnt have to do that. I would not have known they took the time to make sure i got the part the first time.
I appreciate that alot. Integrity in this day and age seems to be long forgotten thing.
Will be ordering more parts as I need them and will use HHR for them.
Awesome piece and fits perfect. Definitely recommend getting this over the standard version, which I also have. This one pan is 30mm lower. Also make sure you get the Alpha seat Support bracket if running the stock subframe in addition to the mounting kit.
8mm swingarm spools such a great design very strong and doesn’t weigh nothing there not so big so it doesn’t stand out it’s perfect
Great experience
Does what it's supposed to do
Love the quality and how fast I received my item even being custom ordered
Perfect fit and great quality. The coolent hose clamps are definitely a must due to there perfect sizing
Item came exactly as expected super fast shipping and the quality is insanely good product is exactly as described
little slow on shipping but i was ordering parts for a 30 yr old bike. All in all good transaction informed whole way thru with times
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