Reviews & Ratings
The LongTeng LTK266-D-SL is an open-mold, super-lightweight road bike frame with a claimed T1100/T1000/M65 carbon blend, designed for versatile riding including light gravel and road. It features a T47 internal bottom bracket, UDH (Universal Derailleur Hanger), and clearance for up to 35mm tires with 6mm of clearance. The frame is praised for its low weight (around 760g for the frame, 325g for the fork), modern geometry similar to race bikes like the Tarmac SL8, and high value for money, typically costing $800-$950 delivered. Users report a 'delightfully boring' ride feel—responsive, comfortable, and stable, with reliable mechanical performance and no issues like seatpost slippage or creaking in long-term use for many. However, some quality control issues include poor-fitting components like the headset, thin paint prone to scratching, and a stock seatpost clamp that may not hold the saddle securely, requiring aftermarket replacements. Additionally, LongTeng does not offer a setback seatpost option. The ordering process can involve communication delays, but recent shipments have been progressing; XL and XXL sizes are now in stock as of April 2026. The weight limit for the frameset is approximately 100 kg. Build weights can be impressively low, with examples of 6.7 kg and 6.9 kg. Overall, it's a solid all-rounder for the price, offering an easy assembly experience for first-time builders, though attention to component upgrades may be needed.
AI Summary
Pros
- Lightweight construction with high-end carbon blend (T1100/T1000/M65), frame around 760g and fork 325g
- Versatile tire clearance up to 35mm with 6mm of clearance, suitable for road and light gravel
- Modern features including T47 bottom bracket, UDH, and internal cable routing
- Good value for money compared to branded frames like Specialized Aethos
- Responsive and comfortable ride quality, described as stiff yet smooth
- Reliable mechanical performance with no seatpost slippage, disc rub, or creaking issues reported in long-term use for many users
- Easy assembly process for first-time builders with minimal troubleshooting required
- Achievable low build weights: examples include 6.7 kg (size M) and 6.9 kg with pedals and accessories
Cons
- Limited size availability initially (only S/M/L), with XL/XXL requiring high demand or delayed production
- Poor quality or ill-fitting components such as the headset, seatpost clamp cover, and spacers
- Minimalist, non-aero design with bland tube shapes and lack of aerodynamic optimization
- Inconsistent paint and finish quality, with issues like voids, rough edges, and loose fibers
- Complex ordering process and potential communication delays with the supplier
- Thin paint prone to scratching from accessories like top tube bags
- Stock seatpost clamp may not hold saddle securely even at specified torque, requiring aftermarket replacements
- No setback seatpost option available from LongTeng
Key Points
- Frame weight: ~760g (frame), ~325g (fork)
- Tire clearance: 35mm with 6mm of clearance
- Bottom bracket: T47 internal
- Derailleur hanger: UDH
- Carbon blend: T1100/T1000/M65
- Geometry: Race-oriented, similar to Tarmac SL8
- Sizes: S, M, L, XL, XXL (XL/XXL now in stock)
- Price: ~$610 for frame set, plus shipping and duties
- Typical delivered cost: $800-$950 USD
- Paint quality: Thin, prone to scratching
- Front disc brake: 160mm rotor (140mm possible with adapter flip)
- Seatpost: 27.2mm, stock clamp may require aftermarket replacement
- No setback seatpost option from LongTeng
- Weight limit: ~100 kg
- Example build weights: 6.7 kg (size M), 6.9 kg with pedals
Where to Buy
LT Bikes Super Light Carbon Full Integrated Molding Road frameset LTK266-D--SL
Specifications
Attributes
Included Components
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