TanTan TT-X68

Delivery times vary widely, typically 4-8 weeks from order, but can be longer (up to 90 days) for custom paint jobs. Shipping to the US often takes an additional 2-3 weeks after dispatch.

Explicitly request the 'enhanced' or 'heavier' fork (around 400g uncut) when ordering via WhatsApp/email. Confirm in writing, but note that TanTan may still ship whatever is in inventory.

Yes, most frames arrive with unfaced or poorly faced brake mounts and BB shells. It is highly recommended to have them professionally faced to ensure proper brake alignment and prevent creaking.

The common advice is to 'size down' if between sizes, as the bike has a long reach and low stack. Use geometry charts and compare to your current bike fit.

The frame uses standard BSA BB and flat mount brakes. However, the front brake requires a specific 70mm adapter (supplied) for 160mm rotors. Some users report tight internal routing for electronic groupset wires. The supplied seatpost is -15mm offset; aftermarket zero-offset posts may fit but compatibility is not guaranteed.

Yes, SL8 thru axles are compatible with the X68 frame, as confirmed by users who have installed them successfully.

The front brake requires a 140mm to 160mm adapter (supplied with the frame), while the rear uses a standard Shimano adapter. No special or expensive adapters are needed.

No, 35mm tires will not fit safely. Users report that even 33mm CX tires almost rub the paint, and while 34mm tires might fit on the original SL8, clearance is very tight and not recommended for the X68, especially in wet conditions.

No, genuine Specialized SL8 seatposts are not compatible with the TT-X68 frame. The replica seatpost has a larger diameter, which can cause issues with accessories like 3D-printed light mounts. Aftermarket zero-offset seatposts from AliExpress may fit but can be loose and often have inferior single-bolt saddle clamps.

Yes, many users report that the stock integrated handlebar feels soft and flexy ('noodly'). Some are considering aftermarket options like the EXS Aerover or genuine Roval Rapide handlebars to reduce flex, though compatibility and fit may vary. However, some find it acceptable after break-in.

Yes, the Chaser rear derailleur hanger is compatible with the X68 frame; one user confirmed 100% fit.

A common solution is to file the underside of the transition spacer slightly and apply silicone between spacers. Replacing the top cap with an original Specialized part (around 12 euros) also resolves deformation and creaking. Some users also replace the compression ring with an aftermarket one to prevent rubbing.

As of July 2026, the TT-X68 frameset is no longer in full production; the molds have been sold. However, TanTan and Seraph still have limited stock of framesets in sizes 44, 52, 56, and 58 cm, and complete bikes available. They can be ordered via websites or WhatsApp. Stock is dwindling and future availability is uncertain.

Tantan offered a replacement frame but required the customer to pay for shipping and painting, citing the frame was over a year old. Some users consider this typical for Chinese OEM brands, though the warranty policy states defects are covered. The bottom bracket insert coming loose is a known issue.

Yes, the TT-X68 frames and complete bikes are back for sale on both TanTan and Seraph websites as of June 2026, but only limited stock remains.

Yes, TanTan now offers a UDH (Universal Derailleur Hanger) version of the TT-X68 frameset.

The Hy carbon seatpost from AliExpress works with careful installation (frame protector and carbon paste). It saves about 60g and can be set to zero offset. Also, the Ryet ultralight saddle (58g advertised, 60g actual) is comfortable and a good lightweight option.

Yes, the normal SL8 hanger (S206000001) works. Also, hangers from Performance Bike and Chaser are compatible.

Yes, some aftermarket zero-offset seatposts from AliExpress fit the X68. One user confirmed a specific carbon post (link provided) fits slightly looser but holds securely when torqued. It is recommended to use carbon paste.

Spacer rubbing can be addressed by sanding the underside of the spacers or using a different compression ring from AliExpress. Headset creaking can be mitigated by applying silicone between spacers and replacing the top cap with a genuine Specialized part.

Some users have achieved build weights around 6.8 kg including pedals, bottle cage, and computer mount, using lightweight components such as carbon wheels and lightweight saddle.

The front thru-axle loosening every ~200km during descents was the primary safety issue, requiring liquid threadlocker to fix.

The builder states it performs similarly to bikes costing twice as much, with significant speed gains over their previous aluminum bike.

Required sanding the rear brake mount, using excessive carbon paste for seatpost, applying threadlocker for thru-axle, and struggling with internal cable routing.

Some commenters noted Lightcarbon frames had fewer quality issues, suggesting build quality varies between Chinese manufacturers.

Most found it humorous and clever (playing on 'S-Works' and Chinese food), though some expressed concerns about counterfeit branding.

The total cost is $3,243, including $2,191 for the complete build without wheelset, $260 shipping, $352 for EliteWheels, $200 for Continental GP5000 tires, $200 for other parts (e.g., AliExpress rotors), $60 for SpeedyDecals, and $200 for RideWrap.

Commenters are divided: some criticize the decals as counterfeit or 'corny' for mimicking Specialized branding, while others defend the poster's choice or suggest alternative humorous decals like 'Fakealized'. The poster acknowledges the controversy but emphasizes sharing the build experience.

Ordered/paid on January 8, shipped on February 9 (before Chinese New Year), and delivered on March 5, taking nearly two months total.

Reported as pretty good with nice paint job, proper headset bearing cups, bottom bracket, and brake mounts. No creaks or fitment issues experienced.

Yes, the $338 XCADEY Ventus carbon crankset includes an XCADEY XPOWER-S Gen 2 spider power meter with power, cadence, pedal balance, and smoothness metrics.

Comparable to SRAM Rival Quarq and Magene P515 in testing, showing similar power readings (around 180W at 20.5 mph).

Uses a Tarmac SL8 compatible hanger (not UDH).

Approximately 2 months total: 5 weeks for production and painting, then 4 weeks for shipping to the US.

No, shipping was Delivery Duty Paid with all tariffs included in the $889 frameset price.