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Hyosung RT125D (Karion) – Specs & Community Guide
The Hyosung RT125D, also known as the RT125 Karion, is a lightweight enduro/supermoto built for everyday riding and fun off-road use. This page is part of our Hyosung Bike Specs library – providing accurate details, rider experiences, and links to the best parts and community resources.
📊 Model Overview
- Model:
- Hyosung RT 125 D
- Years:
- From 2007
- Category:
- Enduro / Supermotard
- Also Known As:
- Hyosung RT125 Karion
- Updates Over the Years:
- Digital speedometer, oil cooler added, upgraded rear shock, multiple wheel options (SM & Enduro rims), and improved engine power with slightly higher top speed.
⚙️ Engine & Transmission
- Engine Type:
- Single cylinder, 4-stroke, air-cooled
- Displacement:
- 124.5cc
- Bore x Stroke:
- 57.0 x 48.8 mm
- Compression Ratio:
- 9.5:1
- Max Power:
- 11.9 hp (8.8 kW) @ 9,500 rpm
- Max Torque:
- 9.9 Nm @ 8,000 rpm
- Fuel System:
- Carburetor
- Ignition:
- CDI
- Lubrication:
- Wet sump
- Starter:
- Electric
- Transmission:
- 5-speed
- Final Drive:
- Chain
🛞 Chassis, Suspension & Brakes
- Frame:
- Steel
- Front Suspension:
- Telescopic forks
- Rear Suspension:
- Mono-shock
- Front Brake:
- Single disc
- Rear Brake:
- Single disc
- Front Tyre:
- 90/90-19
- Rear Tyre:
- 130/90-15
📐 Dimensions & Weights
- Seat Height:
- 790 mm
- Dry Weight:
- 126 kg
- Fuel Capacity:
- 9 litres
- Top Speed:
- ~65 mph (105 km/h)
📸 Hyosung RT125D Photos
Below are community-sourced images of the RT125D from different years and modifications. Click to enlarge.
🔧 Manuals, Parts & Community
- 📘 Download the RT125D Owner’s Manual
- 🛒 Browse Hyosung Parts Shop (OEM & upgrades)
- 💬 Join the Hyosung Community Forums for advice, builds & rider stories
- 📂 See all Hyosung Bike Specs in our library
GT125R 2007 – Rider’s Review – “Where it began…”
Bike Review = Hyosung GTR 125cc 2007
The #1st Blog Post!
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