The Winspace T1550 Gen 2 is a firm, low, and aggressive frameset with a T47 threaded bottom bracket, offering good value at $1,780 but with a seat post clamp that may slip on rough roads.
Pros
- Firm and fast frame
- Good stack height for aggressive position
- Modular design allows easy part swaps
- Customizable complete bike options from Winspace
Cons
- Seat post clamp system may slip on rough roads
- Spray painting a frame is difficult for first-timers
- Custom build can cost more than complete bike
Key Facts
- Claimed weight 980g (size M) for frame only
- T47 threaded bottom bracket shell
- Internal cable routing through integrated bar/stem
Reviews & Ratings


The reviewer builds a crit racing bike using a Winspace T1550 Gen 2 frame, which he custom spray-painted for a unique look. He describes the frame as firm, low, slightly longer, with a good stack height for an aggressive position. The frame is part of a mostly Chinese-component build aimed at balancing quality and cost.
AI Summary
Pros
- Firm and fast frame
- Good stack height for low position
- Custom spray-painted for unique look
- Modular design allows easy part swaps
Cons
- Seat post clamp system may slip on rough UK roads (based on past experience with similar designs)
- Spray painting a frame is difficult for first-timers
Key Points
- Frame: Winspace T1550 Gen 2
- Bottom bracket: T47 threaded
- Uses a clamp-style seat post that bites into carbon
- Integrated bar/stem: Winspace SL0 bars with internal cable channels
- Build includes Chinese components: Wheeltop groupset, Pazquest cranks, X KD power meter, Neutron cassette

The reviewer discusses the Winspace T1550 Gen 2 frame, which costs $1,780, and compares his custom build to the complete bike offered by Winspace. He notes that Winspace recently started selling complete bikes with customizable options. The frame is the same for both builds, but his custom build includes a power meter and higher-end components.
AI Summary
Pros
- Frame cost is reasonable at $1,780.
- Winspace offers customizable complete bikes (stem, bar width, wheels, etc.).
- The reviewer custom painted his frame and later Winspace released a similar colorway, implying the design is appealing.
Cons
- The reviewer's custom build ended up costing around £4,200-£4,300, which is more than the complete bike price of $4,600 (with Shimano Ultegra).
- The reviewer notes that building a bike yourself can be more expensive than buying a complete bike.
Key Points
- Winspace T1550 Gen 2 frame costs $1,780.
- Winspace offers a 10% sale discount frequently.
- The frame uses a T47 bottom bracket shell.
- The complete bike from Winspace with Shimano Ultegra costs $4,600.
Where to Buy
Specifications
Attributes
Included Components
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