TanTan Bikes and Seraph: the same Chinese carbon bike brand, complete 2026 review

TANTAN, SERAPH: WHO IS HIDING BEHIND THESE TWO NAMES?

TanTan Bikes is operated by TanTan Sports Equipment Co., Ltd, a company based in Shenzhen, Guangdong, China. The company presents itself as specializing in the manufacturing of carbon frames and rims, a classic industrial positioning in this region, which concentrates a large part of the global production of carbon bicycle components.

What is more interesting is the way the company markets its production. The two online stores, tantanbikes.com and seraphbikes.com, sharing the same contact email address (a variant of sales@tantancycling.com), the same technical platform, and above all an almost identical catalog: the same frame references (GR201, GR208, GR209, TT-X67, TT-X70, TT-X71, FM198, FM199, TR013...) appear from one site to the other, sometimes down to the exact cent on the price, sometimes with a slightly different discount. On the TanTan website, you can even find products sold directly under the "Seraph" name. In other words, these are not two competing brands, but two commercial storefronts for one and the same manufacturer.

This type of operation is not an exception in the Asian direct-sales carbon universe: many of these factories operate as white-label manufacturers and decline their production under multiple names to reach different audiences or test various marketing positionings. But unlike players such as I can or Elves that have built a fairly recognizable brand identity, TanTan/Seraph Stay in the shadows: no story told, no human face behind the brand, just a product catalog and an email address.

THE ADVANTAGE (AND DISADVANTAGE) OF HAVING TWO SHOP WINDOWS

Having two websites for the same product might seem odd, but in reality, it has concrete consequences for the buyer. The main advantage is competition: it is not uncommon for the exact same frame to be listed at a slightly different price on the two stores, or for one to offer a discount that the other has not yet applied. A savvy buyer can therefore compare the two before placing an order, a habit confirmed by several discussions on specialized forums, where some users report having obtained the same "raw" frame, without stickers or paint, by dealing directly with the factory rather than going through the official store.

The downside is the confusion. If you are looking for reviews on "TanTan" and only come across "Seraph" feedback (or vice versa), you risk underestimating the actual number of reviews available for the frame you searched for.

MARKET POSITIONING

TanTan/Seraph clearly falls into the budget category, at the same level as Mondince or first-generation ICAN products. We are a far cry from the prices charged by Trek, Specialized, or Colnago, which primarily sell a brand image, a local after-sales service network, and years of documented R&D development. We are also below mid-range brands like Giant, Merida, or XDS, which offer a compromise between Western industrial quality and affordable pricing.

Here, the logic is reversed: you pay for the carbon and the engineering, not the name on the head tube. A TanTan/Seraph road frame starts around €400-500, whereas a Cervélo or Colnago frame with equivalent raw performance easily exceeds €3,000. The target audience is therefore the amateur or intermediate cyclist who wants a taste of high-end carbon without spending the budget of a small car, even if it means accepting a risk regarding perceived reliability and the lack of a physical after-sales network.

CATALOGUE AND PRODUCT RANGE

The catalog is extensive, and that is probably the brand's most impressive point. You can find frames there brake rotor and rim brake frames (the famous TT-X65, TT-X67, TT-X70, TT-X71, TT-R18), some heavily inspired by major brands (the Specialized SL8 for the TT-X70, for example) gravel available in several tire widths up to 700x57C (GR201, GR206, GR208, GR209, GR257), 29-inch hardtail and full-suspension MTB frames (FM198, FM199, FM231, FM539, FM529), track/fixed gear frames (TR013), time trial/triathlon frames (TT912, TT914, TT928), as well as Bafang motor-compatible e-MTB frames (E22, E69).

Beyond the bare frame, TanTan/Seraph also offer complete bikes assembled with groupsets Shimano (105, Ultegra, mechanical or Di2) or with electronic groupsets Wheeltop, a lesser-known Chinese alternative that is increasingly common on this type of bike.

The carbon wheels complete the range, with profiles ranging from 28 mm to 50-60 mm depending on the intended use, road or gravel.

Finally, the brand offers custom paint on a good part of its catalog, a real plus to stand out from a bike that, otherwise, remains an open mold frame identical to that of dozens of other buyers.

QUALITY, RELIABILITY AND PERFORMANCE

The frames primarily use Toray T700, T800, or T1000 carbon depending on the models, with an EPS (Expanded Polystyrene) molding process mentioned for certain references, a recognized technique in the industry to limit weak spots in the tube structure. Some gravel frames also use a "blow molding" process, an intermediate technique between conventional molding and EPS.

In the field, long-term feedback (see below) points to a stiffness perceived as average for very sporty use: powerful riders or strong sprinters report noticeable bottom bracket flex during intense efforts.

On the other hand, no reviews mention structural breakage or major safety failures, even after crashes. As for quality control, it remains the typical gray area for this type of manufacturer: no prominent independent certification, no public destructive test reports, which suggests caution for demanding uses (licensed racing, aggressive downhill riding, heavy bikepacking loads).

Scoring by criterion:

• Materials and design: 7/10, high-modulus carbon at a very aggressive price
• Perceived stiffness: 6/10, fine for recreational use, borderline for powerful builds
• Condition: 6.5/10, some minor cosmetic imperfections possible, with no structural consequences
• Brand communication/transparency: 4/10, almost non-existent
• Overall value for money: 8/10

WHAT USERS ARE SAYING ON REDDIT AND CHINERTOWN

That's for sure Chinatown, the go-to forum for Chinese carbon bikes, is where you'll find the most detailed feedback. A user posted a long-term review there of a Seraph TT-X1 frame (the predecessor to the current TT-X models) after several thousand kilometers: generally satisfied, they mention a fast bike that allowed them to grab several Strava KOMs, while pointing out two concrete limitations, a seat tube requiring a shim and a lack of stiffness that eventually wore away the paint on the chainstays during intense out-of-the-saddle efforts. They also highlight that the ordering and delivery went smoothly, and that customer support was responsive with every follow-up.

On the side of Reddit, the feedback is more scattered but converges on the same diagnosis: few complaints about safety or breakage, more comments on the blurring lines between the various brands associated with this same factory and the lack of true brand communication. Several French-speaking triathlon and cycling forums (OnlineTri in particular) also mention this point: some users report having received strictly identical frames, but sold "direct from factory", without stickers, at a lower price than that displayed on the official stores.

TANTAN/SERAPH FACING DIRECT COMPETITION

In the direct-to-consumer carbon frame segment, the most relevant competitors are ICAN, Winspace, Elves Bike, Trifox, and Carbonda. Compared to ICAN, which has built a stronger reputation and more polished communication, TanTan/Seraph plays the card of a broader catalog and sometimes more aggressive pricing, but loses in perceived trust. Compared to Winspace or Trifox, which are positioned in a more premium range with highly refined aero frames, TanTan/Seraph maintains a more generalist and less technically advanced offering.

In the wheel segment, the natural comparison is with CSC, Elite Wheels, and Superteam. Here too, TanTan/Seraph does not have the same brand awareness as CSC, which has built a genuine community of buyers in Europe thanks to localized stock and targeted communication. Clearly, if your budget is tight and you are willing to do your own product-by-product research, TanTan/Seraph remains competitive. If you prefer a brand that has already proven itself in terms of after-sales service and well-documented user feedback, Elite Wheels or CSC remain more reassuring choices for an equivalent budget.

PRICES AND WHERE TO BUY

On the websites, prices are listed in dollars; the prices shown do not include shipping, sales tax, or customs duties. You'll need to add approximately 18% (this amount will be added to your order).

Road frames start around €400-500, rising to €600-700 for the most advanced T1000 carbon versions with electronic groupset compatibility. Gravel frames are generally in the same price range, with a surcharge for versions with high tire clearance. Complete bikes range from €1000 for an entry-level mechanical groupset setup to over €2500 for Di2/AXS setups with carbon wheels.

The purchase is made directly on tantanbikes.com or seraphbikes.com, the two official stores, or via third-party sellers on AliExpress who sometimes list the same frames at different prices. As with any direct purchase from China, allow for an additional budget for potential customs duties and VAT if your order exceeds the applicable thresholds, and systematically check the proposed shipping method (local stock in Europe or direct shipping from China), as this significantly changes the actual delivery time.

FOR WHOM, FOR WHOM NOT

This type of frame is well suited for an amateur to intermediate cyclist who rides between 3,000 and 10,000 km per year, who knows how or can learn to build a bike themselves (or knows someone who does), and who accepts the idea of paying for raw technology rather than brand image. It is also very well suited for anyone who wants a custom bike with a unique paint job without going through a prohibitively expensive custom paint service.

This is not suitable for a licensed racer who needs an approved and documented frame, nor for a very powerful cyclist who needs maximum rigidity to fully exploit their power in a sprint or out of the saddle. Nor is it suitable for someone who needs fast local customer service and a network of physical dealers for nearby maintenance.

FAQ

Are TanTan and Seraph really the same brand? Yes. Both shops are operated by the same Chinese manufacturer based in Shenzhen, with an almost identical catalog and the same sales contact.

Which site is better to buy from, TanTan or Seraph? Neither of them has a guaranteed structural advantage. Simply compare the price of the exact model you are interested in on both sites before ordering, as prices sometimes vary from one shop to another.

Are TanTan/Seraph frames reliable? Available feedback does not report any major structural breakage, but mentions a rigidity perceived as average for powerful riders. Nothing alarming for recreational to intermediate use.

Can you race with a TanTan/Seraph frame? In unlicensed amateur competitions, yes, no problem. For official events requiring homologation, it is not the right choice.

What bottom bracket standards do these frames use? It varies depending on the models: BSA, BB86, or T47 depending on the references. Always check the product sheet before ordering your components.

Are the frames compatible with electronic groupsets (Di2, AXS)? A good part of the recent catalog is designed for electronic groupsets, with suitable internal cable routing. Check for the "Di2 compatible" mention on the product page before purchasing.

How long does delivery take? It depends on the chosen shipping method: several weeks if the shipment comes directly from China, significantly faster if European stock is available for your reference.

Are there any customs fees to expect? Yes potentially, depending on the amount of your order and the delivery country. Check before confirming your purchase to avoid any unpleasant surprises.

Can you customize the paint on your frame? Yes, this is one of the brand's strengths. Most road and gravel frames offer custom paint options, sometimes for a small extra charge.

Is customer service responsive in the event of a problem? Feedback available on forums mentions responsive email customer support, without a formalized after-sales service structure comparable to that of major Western brands.

What is the difference between a TanTan/Seraph frame and a Trek or Specialized frame at the same price? For an equivalent budget, a TanTan/Seraph frame generally offers better raw carbon quality (T800/T1000) because you are not paying for marketing or the distribution network. In return, you lose the structured manufacturer warranty, the local after-sales service network, and years of documented R&D from the major brands.

Conclusion

TanTan and Seraph are essentially the same story as many other direct-to-consumer Chinese carbon manufacturers: unmatched value for money compared to traditional brands, countered by near-zero brand transparency and an assumed risk regarding customer service and technical documentation. Duplicating the brand across two separate storefronts is not a dealbreaker, but it requires a minimum of caution when purchasing: compare prices between the two sites, read reviews available under both names, and do not rely solely on the website's aesthetics to judge the manufacturer's reliability.

If you are primarily looking for raw performance at the best price and are willing to do your own research product by product, TanTan/Seraph deserves a place on your short-list, alongside ICAN and Carbonda. If, on the other hand, you need an established brand, structured customer service, or a frame approved for competition, you should instead turn to a manufacturer that has built a truly documented reputation, or be willing to move upmarket toward traditional Western brands.