700C Road Bike High Carbon Steel Frame
Front fork:high carbon steel front fork
Transmission system:Hongguang 30-7 split
Front shifter:Hongguang FT-TZ30
Rear shifter:Hongguang RD-TZ50
Speed:21 speed
Axle:sealed axle
Hub:36L Bearing Hub
Chain:108 positioning
Freewheel:7S positioning
Pedal:PVC-138
Inner tire:Butyl rubber
Out tire:Natural Rubber
Brake:160mm double mechanical disc brake
Grips: Threaded Grips
Stem:Aluminum alloy four nail hexagon
Chain:170L 24/34/42T
MOQ:50 pieces

Engineered for speed and control, this drop-bar road bike combines lightweight agility with advanced components to deliver a smooth, efficient ride. The frame features a sleek electrostatic baked paint finish with water-transfer decals (hydrographics) for a durable, high-gloss appearance that resists fading and scratches.
21-Speed Precision: Equipped with a HongGuang drivetrain system, this bike offers seamless 21-speed shifting for effortless adaptation to varying terrains, ensuring optimal cadence and power transfer.
7-Speed Indexed Freewheel: The 7S precision-indexed rear cog (tower wheel) provides reliable gear engagement and smooth transitions, reducing chain slippage for consistent performance.
Ergonomic Grip Design: Anti-slip handlebar tape enhances comfort and control, reducing fatigue on long rides while maintaining a secure grip in wet or dry conditions.
Aerodynamic Drop Bars: The lightweight alloy handlebar promotes an aggressive, low-profile riding posture to minimize wind resistance and maximize speed.
Ideal for road cycling enthusiasts, this bike blends durability, responsiveness, and style-perfect for training, commuting, or endurance rides.
Product Description
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Drop handlebars allow riders to lower their heads and bend over to get into a more aerodynamic riding position. This helps reduce wind resistance and improves riding efficiency, especially at high speeds. |
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Because the sealed bottom bracket bearings are more sophisticated, they can reduce friction and make the pedaling system smoother. Compared with traditional bottom brackets, sealed bottom brackets usually provide more stable and efficient transmission, allowing riders to pedal more easily, reduce energy loss, and improve riding efficiency. |
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Disc brakes provide stronger braking force than traditional spoke brakes. Because disc brakes act directly on the brake disc of the wheel hub, the transmission of braking force is more efficient, especially in wet or muddy road conditions, disc brakes can still maintain a good braking effect. Traditional brakes tend to lose some braking force in wet conditions. |
Product Specifications
|
Frame |
high carbon steel frame |
|
Front fork |
high carbon steel front fork |
|
Transmission system |
Hongguang 30-7 split |
|
Front shifter |
Hongguang FT-TZ30 |
|
Rear shifter |
Hongguang RD-TZ50 |
|
Speed |
21 speed |
|
Axle |
sealed axle |
|
Hub |
36L Bearing Hub |
|
Chain |
108 positioning |
|
Freewheel |
7S positioning |
|
Pedal |
PVC-138 |
|
Inner tire |
Butyl rubber |
|
Out tire |
Natural Rubber |
|
Brake |
160mm double mechanical disc brake |
|
Grips |
Threaded Grips |
|
Stem |
Aluminum alloy four nail hexagon |
|
Chain |
170L 24/34/42T |
|
MOQ |
50 pieces |


Why Choose SUPANDA



Packing & Container Loading

-One set per standard export carton.Five layers of corrugated carton.
-85% SKD, 95% plastic bags SKD,132%CKD,50% SKD and 100% CKD.
-According to customer's request.
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient
packaging services will be provided.
Cycling Scene

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