The TT-X38 is an affordable Chinese carbon aero frame that offers good performance for its price, with a comfortable ride and modern features, though it has some quality control and refinement limitations.
Pros
- Super aero profile
- Lightweight construction
- Affordable price point
- Comfortable ride despite aggressive look
Cons
- Lacks refinement over rough roads
- Not as stiff as more expensive frames
- Geometry may not suit all riders (stack and head tube are tall)
- Requires patience to align components (e.g., calipers)
Key Facts
- Approximately 1100 grams unpainted
- T47 bottom bracket compatibility
- Full hidden cable routing
Reviews & Ratings

The reviewer discusses the Tantan X38 Aero frame set extensively throughout the video. They highlight its super aero profile, lightweight construction (approximately 1100 grams unpainted), and affordable price point of around $700 including shipping. The frame is described as unapologetically aero, resembling the Scott Foil RC Pro, and offers a comfortable ride despite its aggressive look. The reviewer mentions the frame's geometry is suitable for most people but notes it lacks refinement over rough roads compared to more expensive frames. They also discuss the frame's compatibility with various components, including a T47 bottom bracket and hidden cable routing.
AI Summary
Pros
- Super aero profile
- Lightweight (approximately 1100 grams unpainted)
- Affordable price point ($700 including shipping)
more pros in the video
Cons
- Lacks refinement over rough roads
- Not as stiff as more expensive frames
- Geometry may not suit all riders (stack and head tube are tall)
more cons in the video
Key Points
- Super aero profile resembling Scott Foil RC Pro
- Approximately 1100 grams unpainted
- $700 price including shipping
more key points in the video
A user built a TanTan TT-X38 road bike with custom modifications including an Erzero dropbar system with tribar mount support, XMCS rims, and a single chainring setup. The bike is being used for bikepacking and touring, with the owner planning a 2.5-month trip to Japan.
AI Summary
Pros
- Can fit 36mm tires for bikepacking comfort
- Erzero dropbar system cleans up cockpit and allows easy tribar attachment/detachment
- XMCS rims are stiff, light, and handle crosswinds well
more pros in the review
Cons
- Single chainring setup (48T) may be too large for steep hills
- Aggressive road bike position may be uncomfortable for some bikepackers
- Erzero handlebar availability limited (primarily on Taobao)
more cons in the review
Key Points
- Frame: TanTan TT-X38 (Chinese carbon)
- Tire clearance: Up to 36mm
- Drivetrain: Single chainring (48T) with SRAM Rival AXS RD 12-speed and 11-36 cassette
more key points in the review
Where to Buy

TanTan Aero Road Bike Frame TT-X38 T47 Thread Racing Bicycle Full Hidden Cable Available Size 47/49/52/54/56/58cm

TanTan Chameleon Paint Full Hidden Cable T47 Thread Disc Road Bike Frame TT-X38 Available 47/49/52/54/56/58cm Size

TanTan Red Water Ripple Paint Carbon Fiber Disc Brake Road Bike Frame TT-X38 stem+handlebar Max Tire 700X32C

TanTan Cycling Aero Road Bike carbon Frame TT-X38 T47 Thread Racing Bicycle Full Hidden Cable Available
Specifications
Attributes
Included Components
Spotted an error in the specs? Help us correct it — sign in or create an account.
Similar Frames
Questions about TanTan TT-X38
Sign up and share your experience — help other riders decide!
Create Account & Review









