LTK266-D--SL

The frame set (frame, fork, seatpost) costs $610 in UD Black matte or glossy finish, with additional costs for paint, shipping, and duties. Order by emailing Alisa at Long Teng (longtengalisa@163.com).

Initially only S, M, and L were available. XL and XXL sizes are now in stock as of April 2026, though some orders placed earlier experienced delays. Contact LongTeng for current availability.

The frame uses IS52 standard bearings. The supplied headset often has fit issues; it's recommended to use an aftermarket FSA No.55R ACR headset for better compatibility and quality. For the FSA ACR headset, two versions exist: the original and the newer 'Low Stack' LS version (two-piece cover). The LS version is recommended as it includes an updated C-ring and is functionally identical but easier to source bearings. Note: some users report that the FSA bearings may be loose and the supplied LTK bearings fit better; the FSA expander is often the only part used. Assembly of the FSA ACR headset can be confusing; the LS version includes a 45-degree crown race (H2630A) that fits only the 45-degree bearing (MR261A) on top. The correct order is: fork, MR127 bearing (bottom), frame, MR261A bearing (top), H2630A crown race, FSA cover, spacers, (adapter), stem.

The frame clears up to 35mm tires with 6mm of clearance, and some users have fit 38mm slicks or small-knob tires, though 35mm is recommended for off-road use. One user successfully fitted 43mm WAM tires (Panaracer Gravelking 38c on i29/o38 rims) but they touched the FD cable; clearance to seat and chainstays was 2-3mm. Another user ran 35mm GP5000 S TR on 32mm internal width rims, measuring 40.7mm, with about 3mm clearance to the front derailleur and 3+ elsewhere, but after expansion clearance became insufficient on the left chainstay. A 24-26mm internal rim would be safer for 35mm tires.

Users describe it as 'delightfully boring'—responsive, comfortable, and stable, but lacking the exciting or 'alive' feel of some high-end race bikes. It's comparable to mid-tier branded frames. One user compared the ride to a TCR. Another user noted it's not the most stable bike, especially with lightweight deep wheels.

Yes, the frame is identical to the Tideace FM-CR266 and Permeants ST-09, as they share the same open mold from Haideli factory. Also appears to be the same as the 8bar Kronprinz Carbon V3.

The frame uses a T47 internal bottom bracket. Compatible options include C-Bear T47 internal, ZTTO T47, SENICX ceramic, and Rotor T47 internal. For cost-effectiveness, affordable options like ZTTO are recommended over premium ones like C-Bear.

The front disc brake uses a 160mm rotor. A 140mm rotor may be possible by flipping the adapter upside down, but this is not officially recommended.

Yes, aftermarket 27.2mm seatposts can be used, but some may creak due to design issues. The stock clamp may not hold securely; alternatives like the Ritchey WCS-1 clamp are recommended. For creaking, ensure proper torque, avoid carbon paste on threads, and check that clamp ears aren't touching the saddle cradle. Note that LongTeng does not offer a setback seatpost option. Some users have resolved slippage by adding a brass shim and exceeding torque to 12Nm. The seatpost wedge bolt is often too long; a 28-30mm M5 bolt is recommended. The Giant Defy seatpost cover (AliExpress item 1005011570720633) fits well after trimming. One user found the Ritchey saddle clamp to be terrible and plans to replace it.

The weight limit for the frameset is approximately 100 kg according to LongTeng.

Some users have received frames with the front derailleur hanger missing the hole for FD installation. This appears to be a manufacturing defect. An aftermarket FD hanger (e.g., from Bigrock) can be used as a replacement.

The frame has a 5mm round hole for the front derailleur cable exit, but no grommet is provided. Aftermarket grommets are hard to find; users have used black electrical tape, Sugru, or other moldable silicone as a temporary fix. Some users found 4.5mm rubber plugs on AliExpress that fit perfectly.

For 1x SRAM Force E1 with DUB crankset, a 45mm chainline is ideal. Use a direct mount chainring with 6.5mm offset (SRAM) or 6mm offset (Wolf Tooth) for proper chainline. For 12-speed, 47.5mm chainline is also acceptable.

A user found a rubber seatpost cover on AliExpress (item 1005011570720633) that fits well after cutting off half of the small nipple. However, the Giant D-Fuse seatpost likely does not fit, as a Varia mount designed for D-Fuse was too small.

For Di2 builds, some users have mounted the battery using packaging material and O-rings, or wrapped foam/bar tape around it and stuffed it into the seatpost. A Giant battery holder kit (GIA150000049) is available for ~11 EUR. The Deda seatpost mount (wide) or Pro Mount (wide) also fit. No public STL file for a 3D-printed holder has been shared, but a user plans to design one and post it. A user also used a battery holder from AliExpress (item 3256811959426438) successfully.

For upgrading thru-axles, one user used 12x1.0 167mm front and 12x1.5 118mm rear from AliExpress, plus a 2mm washer (max 19mm diameter) for the fork. Another user noted the stock axles are only 18g heavier than Heppe axles, so upgrade may not be necessary. Another user recommended lightweight aluminum axles: Muqzi M12x1.5*117 (25.2g) and Heppe M12x1.0*168 (35.9g), with a 1mm spacer.

The maximum chainring size for 1x is 55t according to LongTeng. For 2x, no specific limit was mentioned, but it likely depends on the frame clearance and FD.

The frame is advertised at 650g unpainted for size M; painted it is estimated at 700-750g.

Yes, custom paint is available. One user paid $950 for frameset plus custom paint, total $1110 without handlebar.

The LTK266-D-SL is a similar Chinese frameset, often considered a cheaper alternative to the Evolve Cima. They share similar geometry and design.

Replace the cockpit, thru-axles, and seatpost dust cap. Also consider lighter wheels, tires, and brake rotors.

Communication via WhatsApp is excellent, with quick and patient responses.