Description
Description
The reinvented RPHA 90 Carbon is the most compact modular helmet, resembling a full-face helmet through weight and appearance, yet functioning as a modular helmet. The Premium Carbon Fiber Outer shell provides enhanced shock-resistant performance and a comfortable and very lightweight helmet using reinforcement materials that include carbon and carbon-glass hybrid fabric. The RPHA 90 Carbon has a 3D-engineered low-noise interior that is focused to reduce noise significantly for riders. Another convenient feature is the EPS design that accommodates riders who use eyewear and also has recessed areas for custom speaker placement.
Features:
SHIELD OPTIONS
HJ-29 STANDARD SHIELD
HJ-29 RST-MIRRORED PIN-PREPARED SHIELD
HJ-V9 SUN VISOR
REPLACEMENT PARTS
TOP / REAR / LOWER VENT
CHIN CURTAIN
BREATH DEFLECTOR
GEAR PLATE SET
CHEEK PADS
HEADLINER
HELMET SIZING CHART
SIZE
CENTIMETER
HAT SIZE
INCHES
Small
55-56
6 7/8 – 7
21 5/8 – 22
Medium
57-58
7 1/8 – 7 1/4
22 1/4 – 22 7/8
Large
59-60
7 3/8 – 7 1/2
23 1/4 – 23 5/8
X-Large
61-62
7 5/8 – 7 3/4
24 – 24 3/8
2X-Large
63-64
7 7/8 – 8
24 3/4 – 25 1/4
Before You Select a Size: Helmet-Fit Facts
A helmet is one of the most important pieces of riding gear you will choose, and the size printed on the label is only a starting point. Head circumference, head shape, crown contact, cheek-pad pressure and the retention system all affect whether a helmet fits correctly. Two helmets marked the same size can fit very differently—even within the same brand.
Measure around the widest part of your head, keeping the tape level and approximately one inch above your eyebrows.
A new helmet should feel evenly snug around the entire head without sharp or painful pressure points.
When you move the helmet gently from side to side, your skin should move with the liner rather than the helmet sliding independently.
Fasten the retention system and confirm that the helmet cannot roll forward or lift off the head.
Wear the helmet for several minutes before deciding. Comfort padding may settle with use, but an incorrect shell shape or painful pressure point is unlikely to be solved by choosing blindly.
Why Come to Eagle Leather for a Helmet Fitting?
Our staff is trained to help with helmet fitting and can help you compare head shape, size, pressure points and retention across different models. Inventory changes daily, but Eagle Leather consistently carries many hundreds of helmets—often approaching 1,000 units—across half-shell, open-face, modular, adventure and full-face styles. That selection gives you the opportunity to compare brands and internal shapes instead of relying on a size label alone.
For such an important piece of riding gear, we encourage you to visit Eagle Leather for an in-person fitting before selecting a size without trying the helmet on.
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RPHA-90S Carbon Specs Helmet
Product form
$634.99
$444.99
RPHA-90S Carbon Specs Helmet is an HJC modular motorcycle helmet built with carbon-fiber composite for street and touring riding.
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1-Year Eagle Leather Warranty
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Order within:
Oct 10, 2026 12:30:00 -0700
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Questions? Talk to the shop.
Not sure about sizing, fit, or whether something works for your bike? Call or email — you’ll reach people who ride and know the gear.
Features & Details
Lightweight carbon modular shell HJ-29 Pinlock-ready shield Integrated sun shield Speaker recesses and eyewear-friendly interior
Specifications
Model: RPHA 90S Carbon Helmet style: Modular Shell construction: Carbon-fiber composite Retention: Double D-ring Internal sun visor: Yes Pinlock-ready shield: Yes Communication ready: Yes
Fit & Sizing Guide
Measure around the widest part of the head and compare the result with HJC's size chart. A new helmet should feel evenly snug without isolated pressure points. Wear it indoors before riding and confirm the helmet does not rotate independently of the head.
RPHA-90S Carbon Specs Helmet is an HJC modular motorcycle helmet built with carbon-fiber composite for street and touring riding.
Description
Description
The reinvented RPHA 90 Carbon is the most compact modular helmet, resembling a full-face helmet through weight and appearance, yet functioning as a modular helmet. The Premium Carbon Fiber Outer shell provides enhanced shock-resistant performance and a comfortable and very lightweight helmet using reinforcement materials that include carbon and carbon-glass hybrid fabric. The RPHA 90 Carbon has a 3D-engineered low-noise interior that is focused to reduce noise significantly for riders. Another convenient feature is the EPS design that accommodates riders who use eyewear and also has recessed areas for custom speaker placement.
Features:
SHIELD OPTIONS
HJ-29 STANDARD SHIELD
HJ-29 RST-MIRRORED PIN-PREPARED SHIELD
HJ-V9 SUN VISOR
REPLACEMENT PARTS
TOP / REAR / LOWER VENT
CHIN CURTAIN
BREATH DEFLECTOR
GEAR PLATE SET
CHEEK PADS
HEADLINER
HELMET SIZING CHART
SIZE
CENTIMETER
HAT SIZE
INCHES
Small
55-56
6 7/8 – 7
21 5/8 – 22
Medium
57-58
7 1/8 – 7 1/4
22 1/4 – 22 7/8
Large
59-60
7 3/8 – 7 1/2
23 1/4 – 23 5/8
X-Large
61-62
7 5/8 – 7 3/4
24 – 24 3/8
2X-Large
63-64
7 7/8 – 8
24 3/4 – 25 1/4
Before You Select a Size: Helmet-Fit Facts
A helmet is one of the most important pieces of riding gear you will choose, and the size printed on the label is only a starting point. Head circumference, head shape, crown contact, cheek-pad pressure and the retention system all affect whether a helmet fits correctly. Two helmets marked the same size can fit very differently—even within the same brand.
Measure around the widest part of your head, keeping the tape level and approximately one inch above your eyebrows.
A new helmet should feel evenly snug around the entire head without sharp or painful pressure points.
When you move the helmet gently from side to side, your skin should move with the liner rather than the helmet sliding independently.
Fasten the retention system and confirm that the helmet cannot roll forward or lift off the head.
Wear the helmet for several minutes before deciding. Comfort padding may settle with use, but an incorrect shell shape or painful pressure point is unlikely to be solved by choosing blindly.
Why Come to Eagle Leather for a Helmet Fitting?
Our staff is trained to help with helmet fitting and can help you compare head shape, size, pressure points and retention across different models. Inventory changes daily, but Eagle Leather consistently carries many hundreds of helmets—often approaching 1,000 units—across half-shell, open-face, modular, adventure and full-face styles. That selection gives you the opportunity to compare brands and internal shapes instead of relying on a size label alone.
For such an important piece of riding gear, we encourage you to visit Eagle Leather for an in-person fitting before selecting a size without trying the helmet on.
Read
more
less
