Tantan TT-X70
Road · 6 sizes
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This is the bike I ride
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- Bike
- Tantan TT-X70 · Road · 6 sizes
- Geometry
- tantancycling.com, fetched 21 Oct 2026, re-checked, no differences
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
- Sheet
- 22 October 2026 · 686 bikes, 74 makes, 3,984 sizes in the catalogue
Geometry, every size, from the maker's table
The tinted row is the size drawn beside it. Press a size to draw it.| Size | Stack (mm) | Reach (mm) | Head angle (deg) | Seat angle (deg) | Head tube (mm) | Chainstay (mm) | Wheelbase (mm) | Standover (mm)not published |
|---|---|---|---|---|---|---|---|---|
| 440 | 500 | 366 | 70.5 | 75.5 | 99 | 410 | 970 | |
| 490 | 514 | 375 | 71.75 | 75.5 | 109 | 410 | 973 | |
| 520 | 527 | 380 | 72.5 | 74 | 120 | 410 | 976 | |
| 540 | 545 | 384 | 73 | 74 | 137 | 410 | 980 | |
| 560 | 565 | 395 | 73.5 | 73.5 | 157 | 410 | 993 | |
| 580 | 591 | 402 | 73.5 | 73.5 | 184 | 410 | 1008 |
The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The 540 drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.
The maker's cockpit
No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.Generic stem and barAssumedNo bar is listed for this frame.
Frame facts
not read off the maker's page yet: tantancycling.com- Tyre clearance
- not recorded yet
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- not recorded yet
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off tantancycling.com.Two-piece cockpit on the listing photos; no bar data printed.
Cockpit and seatpost, in the maker's words · 20 words
Two-piece cockpit on the listing photos; no bar data printed. Stock stem and bar per size are not published (null).
SOURCE: tantancycling.com is the maker's own site (an old Chinese CMS. Source: image_table (maker's own site tantancycling.com (Shenzhen TanTan Sports Equipment, also sold as SERAPH), product-page image
How I read the maker's table
product pages carry only images). Table columns as printed: SIZE, A deg (head angle), B deg (seat angle), T-T (top tube, drawn horizontal), CT (seat tube), HT, FC, WB, RC (chainstay), REACK (reach), STACK; the drawing prints a 74 mm BB drop (recorded on every size). No fork offset printed (null). Title: "2025 New TT-X70 Carbon Road Bike Frame Disc Brake Lightweight Road Bicycle Frame". OPEN MOULD: the table is identical cell for cell to Spcycle's R088 chart (docs/research/geometry/spcycle-r088.json). Trail and standover are not published unless named. STACK DATUM: not stated; head tube top assumed. MODEL YEAR: 2025, from the title or the image upload date. No Panda Podium, Geometry Geeks or 99 Spokes request was made.
Source: image_table (maker's own site tantancycling.com (Shenzhen TanTan Sports Equipment, also sold as SERAPH), product-page image http://www.tantancycling.com/upload/image/20250514102323_71306.png, 600x522 PNG, read by eye)
