Chinertown

Chinese Carbon Road Bikes => Cyclocross Frames, Wheels & Components => Topic started by: Eisenhut on June 16, 2026, 12:21:17 AM

Title: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: Eisenhut on June 16, 2026, 12:21:17 AM
I had my mind set on the Veloaero Grav then this came out. A bit shorter reach could suit me.

Anyone else who pulled the trigger?

https://tantanbikes.com/2026-Carbon-Gravel-Disc-Bike-Frame-CR257-Max-Tire-700X57C-UDH-hanger-Available-Size-485154565861cm-p7046486.html
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: RiP on June 16, 2026, 05:14:33 AM
It's basically the same frame as the Mondince FM346 (https://www.mondincecycle.com/product/latest-design-57mm-max-tire-with-chainstay-and-downtube-protector-carbon-gravel-bike-frame--fm346) (except for the seat tube shape/profile, but the geo chart is the same), discussed in this topic: https://chinertown.com/index.php/topic,7193.0.html (https://chinertown.com/index.php/topic,7193.0.html)


This TanTan frame was also mentioned here: https://chinertown.com/index.php/topic,7298.0.html (https://chinertown.com/index.php/topic,7298.0.html)
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: pavlo.k on June 16, 2026, 09:52:13 AM
Looks like they don't make 61, same as mondince
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: glos_ludu on June 17, 2026, 02:55:58 AM
it's a pitty, I liked geometry of 61mm better
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: wintermute on June 17, 2026, 06:38:49 AM
It's basically the same frame as the Mondince FM346 (https://www.mondincecycle.com/product/latest-design-57mm-max-tire-with-chainstay-and-downtube-protector-carbon-gravel-bike-frame--fm346) (except for the seat tube shape/profile, but the geo chart is the same), discussed in this topic: https://chinertown.com/index.php/topic,7193.0.html (https://chinertown.com/index.php/topic,7193.0.html)


This TanTan frame was also mentioned here: https://chinertown.com/index.php/topic,7298.0.html (https://chinertown.com/index.php/topic,7298.0.html)

I think it looks identical, maybe the profile looks different just from the photo?
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: Ultramic on June 18, 2026, 02:34:10 AM
Top tube / Seat tube junction is different. Tan Tan appears to use a wedge whereas Mondince might clamp from the back as it looks like the seatpost sits further forward from the back end of the top tube.
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: Eisenhut on June 21, 2026, 03:34:02 PM
it's a pitty, I liked geometry of 61mm better

I asked them and they told me the 61cm is likely months away. I ordered the Velobuild instead. Maybe I’ll try this frame as well when 61 is available.
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: pavlo.k on June 22, 2026, 12:18:33 AM
I asked them and they told me the 61cm is likely months away. I ordered the Velobuild instead. Maybe I’ll try this frame as well when 61 is available.
They will probably never make one. I've had a couple of instances when the geo chart was showing xl/xxl chart but when I asked about it it was always "coming some time in the future" and it never did. If they don't have the mold now, they most likely never will.
I really like this frame but have to look for something else and unfortunately there's not a lot of choices in my size.
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: AngryBear on June 22, 2026, 12:38:34 PM
It looks like the storage box is the older style used on mondince 326. It seemed like it could be problematic opposed to the newer style that uses the magnets…
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: ains on July 23, 2026, 04:32:05 AM
Tan Tan just released a video with complete bike build using this frame

https://www.instagram.com/reel/DbDQaksBBqV/?igsh=Z3piM2hqd3k0cXFo
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: FlorianS on July 24, 2026, 06:32:16 AM
It looks like the storage box is the older style used on mondince 326. It seemed like it could be problematic opposed to the newer style that uses the magnets…
What could be the problem with this kind of storage cover?
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: GravelMaxxer on July 24, 2026, 07:36:34 AM
Tan Tan just released a video with complete bike build using this frame

https://www.instagram.com/reel/DbDQaksBBqV/?igsh=Z3piM2hqd3k0cXFo

They are also selling it on their website now with the setup posted on Insta for 1999$ on their site🫨 great value. https://tantanbikes.com/Single-Speed-1x12S-Shimano-GRX820-Mechanical-Groupset-Disc-Gravel-Bike-GR257-Complete-Bike-Carbon-wheelset-With-29225-Tire-p7137968.html
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: carboncal on July 29, 2026, 09:23:25 AM
I just pulled the trigger on a GR257. Having them build it with a di2 groupset, custom paint, no wheels (will use Elite wheelset), custom paint.

Will let you know how it all goes.
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: pavlo.k on August 26, 2026, 04:14:24 AM
Looks like they don't make 61, same as mondince

size 61(XXL) is now offered by meiner https://pl.aliexpress.com/item/1005012861779650.html
It has a slightly different seat clamp design
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: Samuel BMR on August 27, 2026, 05:07:24 AM
1259g announced seems heavy though…
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: Eisenhut on August 28, 2026, 08:54:35 AM
size 61(XXL) is now offered by meiner https://pl.aliexpress.com/item/1005012861779650.html
It has a slightly different seat clamp design

I like the fact that they state XXL is for 199cm and taller. With a reach of 396...
Title: Re: TanTan GR257. 57mm clearance, UDH hanger, storage box etc just released.
Post by: carboncal on August 31, 2026, 06:15:05 PM
Just received photos of the painted bike with the grx717 groupset. Wheels I ordered separately through Elite. The wheels shown here are just for for photos. Colors are burgundy faded into slate.