Reviews & Ratings
The TanTan TT-X21 is a carbon road frame that is also sold under other brands (e.g., Velobuild VB-R-099, Long Teng LTK268-D, Workswell WCB-R-268). It features a proprietary seatpost with significant setback, integrated handlebar/stem, and internal cable routing. Users report a mix of experiences: many praise the frame's stiffness, light weight, and value, while others complain about quality control issues (undersized BB shell, headset play, fork alignment) and poor customer service. The frame weight is around 1160g for a 56cm. It supports up to 32mm tires. Prices vary: frame-only around $599, complete bikes around $2650. Common upgrades include replacing the compression plug and headset components to resolve front-end issues.
AI Summary
Pros
- Stiff, light, and fast; good value for money
- Good build quality and paint on many units
- Responsive customer service from some representatives (e.g., Rose, Lisa)
more pros in the review
Cons
- Headset play and front-end issues requiring aftermarket parts (compression plug, microspacers)
- Undersized bottom bracket shell requiring sanding or facing
- Poor customer service and shipping delays, including fake tracking numbers
more cons in the review
Key Points
- Frame weight: ~1160g for size 56 (post:25229)
- Bottom bracket standard: BB86 (post:25678)
- Tire clearance: up to 32mm (post:82801)
more key points in the review
Where to Buy

TanTan Disc Carbon Frame New Road Frame, Disc road frame , Carbon frame , TT-X21
Specifications
Attributes
Included Components
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