Author Topic: New frame: Longteng RD301-D  (Read 25507 times)

Ahodesu05

Re: New frame: Longteng RD301-D
« Reply #120 on: October 01, 2024, 02:39:06 AM »
Encountered my first issue building up the rd301d. Bike mechanic discovered seatpost wedge part (that tighten the seatpost) piece does not fit into the given space. Seems to me like the wedge piece is intended for different model.

Currently checking with vendor to confirm if they're sending the wrong part.

@Ahodesu05 Does your seatpost wedge piece fits? maybe I just received the wrong parts.

You're lucky you got (a wrong) one: I didn't get one at all :P.  And I didn't get a Di2 battery holder for the seat post - I'm not sure if they have one (since it's a non-standard aero seat post) or if I'm supposed to come up with something on my own. I'm following up with Alisa on these issues but they're off on national holiday in China for the rest of the week, will report back when I get some updates.  A bit annoying ... but all will be forgiven if the frame kicks ass.


kwantani

Re: New frame: Longteng RD301-D
« Reply #121 on: October 01, 2024, 01:11:21 PM »
pics of the wedge part

viktorN

Re: New frame: Longteng RD301-D
« Reply #122 on: October 04, 2024, 02:40:10 AM »
Whoops, seems like they went to the wrong shelf on that one!

I'm really curious about this bike, or Tantan FM301 or whichever. When you get the chance it would be interesting to see the actual max tire clearance.
Looks like it could be the ultimate allrounder if you could squeeze in a pair of 40mm gravel tires, very sporty rear at 410mm chainstays!

Serge_K

Re: New frame: Longteng RD301-D
« Reply #123 on: October 04, 2024, 02:47:52 AM »
Whoops, seems like they went to the wrong shelf on that one!

I'm really curious about this bike, or Tantan FM301 or whichever. When you get the chance it would be interesting to see the actual max tire clearance.
Looks like it could be the ultimate allrounder if you could squeeze in a pair of 40mm gravel tires, very sporty rear at 410mm chainstays!

I have the LT268, it's rated 32C, i run 32C at the rear on a 34mm rim, so it measures 33.5mm, and i have PLENTY of clearance, front and rear, so i'm pretty sure i could run 34 or 35C (slick). When i bought the frames, i remember Alisa sent me cad drawings with the actual clearance on the frame, so if you're considering buying a 301, you could ask her for the same.
I'd bear in mind that if you want to put knobby gravel tyres, you should account for mud, crap, stones and what not in the clearance, so you'd probably be asking for trouble.
If you want a road oriented gravel bike, i can say good things, from 1st hand experience, of Xiamen carbon speed's grevil clone. Peter is on the forum. It clears 50C, but compared to my other gravel bike, it's much more road oriented / capable. And pinarello does know a thing or 2 about bike geometry, and clearly markets the grevil as a speed machine, not an adventure / bike packing horse.
Fast on the flat. And nowhere else.

bremerradkurier

Re: New frame: Longteng RD301-D
« Reply #124 on: October 04, 2024, 08:37:59 AM »
You're lucky you got (a wrong) one: I didn't get one at all :P.  And I didn't get a Di2 battery holder for the seat post - I'm not sure if they have one (since it's a non-standard aero seat post) or if I'm supposed to come up with something on my own. I'm following up with Alisa on these issues but they're off on national holiday in China for the rest of the week, will report back when I get some updates.  A bit annoying ... but all will be forgiven if the frame kicks ass.

For my Carbonspeed aero seatoost, I used two pieces of brake hose foam insulation and some spiral cable bundle wrap as a DIY battery holder.

kwantani

Re: New frame: Longteng RD301-D
« Reply #125 on: October 08, 2024, 01:25:34 AM »
Alisa just replied:

"Just checked , the one in the seat tube you show to me is not the right one , the clamp is fit for the handlebar , not for the seatpost . Please check if you get another wedge in your parcel ?"

No other wedge part in the parcel. Sounds like it's missing on my shipment too.

Serge_K

Re: New frame: Longteng RD301-D
« Reply #126 on: October 08, 2024, 01:32:11 AM »
If only derailleur hangers and these bits and bobs were standardized...
Fast on the flat. And nowhere else.

Ahodesu05

Re: New frame: Longteng RD301-D
« Reply #127 on: October 08, 2024, 02:34:00 AM »
For my Carbonspeed aero seatoost, I used two pieces of brake hose foam insulation and some spiral cable bundle wrap as a DIY battery holder.
Yep Longteng confirmed, they don’t have a custom Di2 battery holder, so we need to just find a way to make it work.

Ahodesu05

Re: New frame: Longteng RD301-D
« Reply #128 on: October 08, 2024, 02:39:56 AM »
Another small detail is that the seat post saddle clamp is made for round saddle rails and there is no adapter for oval saddle rails.  I’ve never had a problem with fitting oval carbon fiber rails on standard saddle clamps but just fyi.

kwantani

Re: New frame: Longteng RD301-D
« Reply #129 on: October 08, 2024, 10:39:23 AM »
Update....
 
Alisa replied she will sent out the seatpost wedge and rubber cover too. I think they "acknowledged" the slip up and making it right this time...

Daviddavieboy

Re: New frame: Longteng RD301-D
« Reply #130 on: October 09, 2024, 07:32:18 AM »
. . .  it would be interesting to see the actual max tire clearance.
Looks like it could be the ultimate allrounder . . .

I would be super curious as well. I have a spcycle g056 that is great but I want a more road oriented bike. I messaged through the website 2 weeks ago but no response. Maybe inundated from the holiday.
« Last Edit: October 09, 2024, 07:37:26 AM by Daviddavieboy »

viktorN

Re: New frame: Longteng RD301-D
« Reply #131 on: October 09, 2024, 11:07:29 AM »
I would be super curious as well. I have a spcycle g056 that is great but I want a more road oriented bike. I messaged through the website 2 weeks ago but no response. Maybe inundated from the holiday.

So I got in touch with them and after some back and forth:s they claim the clearance is 6mm on each side (rear) and 7mm (fork) when using a 38mm tire. So that should mean a total clearance of 50mm rear, 52mm fork tire clearance. So squeezing in a 40mm gravel oriented tire might just work which would result in a very capable allrounder!

kwantani

Re: New frame: Longteng RD301-D
« Reply #132 on: October 09, 2024, 03:44:09 PM »
Yeah I've a carbon oval rails saddle too. Just ordered a 7x9mm oval seatpost clamp replacement piece. cost me $15. Hopefully it can fits the oval 7x9 carbon rails.

Another small detail is that the seat post saddle clamp is made for round saddle rails and there is no adapter for oval saddle rails.  I’ve never had a problem with fitting oval carbon fiber rails on standard saddle clamps but just fyi.

planet_sammy

Re: New frame: Longteng RD301-D
« Reply #133 on: October 11, 2024, 01:02:13 AM »
Which frame size would you choose, I'm currently riding a Canyon Ultimate CF SL 8.0 from 2018 in size S, which actually fits quite well (my height is 174 cm with an inner leg length of 82.5 cm), the Canyon geometry table specifies the bike for a height of 172-178cm.

That would be almost identical to frame size 54, but I would lean towards 52...what do you think?

Serge_K

Re: New frame: Longteng RD301-D
« Reply #134 on: October 11, 2024, 05:12:45 AM »
Which frame size would you choose, I'm currently riding a Canyon Ultimate CF SL 8.0 from 2018 in size S, which actually fits quite well (my height is 174 cm with an inner leg length of 82.5 cm), the Canyon geometry table specifies the bike for a height of 172-178cm.

That would be almost identical to frame size 54, but I would lean towards 52...what do you think?

play with the website geometry bike geek. make sure you plug in the bikes side by side, make sure you do the work, then no risk of ordering the wrong size. Obviously, consider the size of the cockit / stem as well: usually a 10cm stem is more reliable than 8cm, when it comes to steering. 8cm can be twitchy, although small frames often come with 8cm stems.
If you happen to be running a baby stem because the frame's too big, then factor that in when you compare frames.
The recommended height in geometry tables are valid if and only if you're very normal. For example, i have long legs for my height, which means i've bought frames that we too big for me for years. So don't trust blindly that indication.
Stack and reach dont lie - assuming you're comparing similar bikes.
Fast on the flat. And nowhere else.