Author Topic: New frame: Longteng RD301-D  (Read 324829 times)

Pkd17

Re: New frame: Longteng RD301-D
« Reply #165 on: December 16, 2024, 08:23:43 AM »
Would be really great, if anyone could try if a standard 40mm (gravel) tire would fit. For example a Conti speed or schwalbe g-one. If it fits, it would give this frame so much versatility....

Re: New frame: Longteng RD301-D
« Reply #166 on: December 16, 2024, 09:10:27 AM »
Would be really great, if anyone could try if a standard 40mm (gravel) tire would fit. For example a Conti speed or schwalbe g-one. If it fits, it would give this frame so much versatility....

I would be shocked if a low profile 40 didn’t fit. Someone earlier in the thread took pictures of rudimentary clearance measurements. That being said, 40 would likely be tight for wet/muddy days.

Specialf.

Re: New frame: Longteng RD301-D
« Reply #167 on: December 16, 2024, 03:17:09 PM »
I started the assembly, and these are my impressions;

1. Bottom part of the BB seems uneven as you can see in the first pirture. I think it is okay considering that the stressed part is near the threaded part. But I cannot but feel some disappointment.

2. I think there should be a cover to seal the outlet of di2 cable which connects to the front derailier, but I couldn't find it.

3. Test for the downtube storage cover. I think it locked pretty well. Please check the video I attached.

I need more time to assemble the frame, but until now, routing the cables (both brake and Di2) is pretty easy, even though it is my first time to assemble a bike.

Hope to share the picture of fully assembled bike within this year lol.

great video! it gives a good idea.
can I ask what bag is that attached to the lid? is it a storage bag with bottle cage screw attachment? do you have a link? thanks.

kwantani

Re: New frame: Longteng RD301-D
« Reply #168 on: December 16, 2024, 05:02:36 PM »
My rear wheel play issue is related to the wheel hub bearings. I've the YuanAn wheelset, YuanAn agreed to sent me new bearings. So it's most likely unrelated to the frameset. We'll see after I received them from YuanAn if it resolved the play issue.

Have we seen yet any full build with all the issues sorted out? I think rear wheel play hasn't been sorted out yet. It's putting me off buying this frame.

maza

Re: New frame: Longteng RD301-D
« Reply #169 on: December 16, 2024, 05:42:12 PM »
My rear wheel play issue is related to the wheel hub bearings. I've the YuanAn wheelset, YuanAn agreed to sent me new bearings. So it's most likely unrelated to the frameset. We'll see after I received them from YuanAn if it resolved the play issue.
Have you tried a different wheel? Does that eliminate the play?

Hillhater

Re: New frame: Longteng RD301-D
« Reply #170 on: December 16, 2024, 06:10:07 PM »
great video! it gives a good idea.
can I ask what bag is that attached to the lid? is it a storage bag with bottle cage screw attachment? do you have a link? thanks.

It's Fidlock single toolbox(https://www.fidlock.com/consumer/en/twist-single-toolbox/09646-p00002-blk)

I can replace the box to the bidon which support fidlock system.

kwantani

Re: New frame: Longteng RD301-D
« Reply #171 on: December 16, 2024, 06:57:14 PM »
That internal BB is less than satisfying. If I recalled ( I don't have pic to shown the internal as I already build up the bike) correctly it should be smooth and no wrinkles like that. You might want to show it to Alisa first before you start the build.

I started the assembly, and these are my impressions;

1. Bottom part of the BB seems uneven as you can see in the first pirture. I think it is okay considering that the stressed part is near the threaded part. But I cannot but feel some disappointment.

2. I think there should be a cover to seal the outlet of di2 cable which connects to the front derailier, but I couldn't find it.

3. Test for the downtube storage cover. I think it locked pretty well. Please check the video I attached.

I need more time to assemble the frame, but until now, routing the cables (both brake and Di2) is pretty easy, even though it is my first time to assemble a bike.

Hope to share the picture of fully assembled bike within this year lol.

Hillhater

Re: New frame: Longteng RD301-D
« Reply #172 on: December 17, 2024, 12:58:02 AM »
That internal BB is less than satisfying. If I recalled ( I don't have pic to shown the internal as I already build up the bike) correctly it should be smooth and no wrinkles like that. You might want to show it to Alisa first before you start the build.

Yep I sent email to Alisa. I will share the reply when I get.

Specialf.

Re: New frame: Longteng RD301-D
« Reply #173 on: December 17, 2024, 02:42:51 PM »
It's Fidlock single toolbox(https://www.fidlock.com/consumer/en/twist-single-toolbox/09646-p00002-blk)

I can replace the box to the bidon which support fidlock system.

very nice, thank you.

Hillhater

Re: New frame: Longteng RD301-D
« Reply #174 on: December 18, 2024, 06:43:32 AM »
That internal BB is less than satisfying. If I recalled ( I don't have pic to shown the internal as I already build up the bike) correctly it should be smooth and no wrinkles like that. You might want to show it to Alisa first before you start the build.

Got a reply from Alisa, and here is the part;

Confirmed with our production manager , the uneven BB inside surface will not effect the safety of the riding , you don't need to worry about it . 

sooo... I will try to believe her(and the production manager).

BeR

Re: New frame: Longteng RD301-D
« Reply #175 on: December 18, 2024, 01:10:32 PM »
Got a reply from Alisa, and here is the part;

Confirmed with our production manager , the uneven BB inside surface will not effect the safety of the riding , you don't need to worry about it .

sooo... I will try to believe her(and the production manager).

I don't remember who it happened to but there was one person who had doubts about the manufacturing quality of the carbon and the salesman told him not to worry when the problem really was dangerous. But for your case, I cannot comment.

Chamomile

Re: New frame: Longteng RD301-D
« Reply #176 on: December 18, 2024, 02:34:41 PM »
Confirmed with our production manager , the uneven BB inside surface will not effect the safety of the riding , you don't need to worry about it .
Yeah, this's a classic way to say "fuq off." They talk to the manager/engineer/god/Lucifer, and everything turns out to be perfect and in order. "No worries, friend, buy more frames." Quite common for chinese carbon manufactures sellers.
I guess if it concerns you a lot, the most reliable option is to show it to someone who might have some skills to test/diagnose. Or seek help from internet experts here and there (I'm not the one, unfortunately).
Otherwise, build and test yourself. You could find some weak points after assembling.

julienb

Re: New frame: Longteng RD301-D
« Reply #177 on: December 23, 2024, 08:59:56 AM »
Hello

I ordered this frame.

Could you please share which T47BB you can recommend ?

Also does anyone know if a Magene P505 crank would fit ? Seems to be a gamble with T47 frames

thanks,

Hillhater

Re: New frame: Longteng RD301-D
« Reply #178 on: December 23, 2024, 07:29:20 PM »
Hello

I ordered this frame.

Could you please share which T47BB you can recommend ?

Also does anyone know if a Magene P505 crank would fit ? Seems to be a gamble with T47 frames

thanks,

Considering the price, I Choose Praxis T47 – I.B. SHIMANO.
Magene P505 is compatible with Shimano(24mm), so it will work in your case too.

If you have extra money, you can choose change the better bearing(like NTN or ZEN) or you can go Chrisking if you are rich enough.

Because there are several BB brands, find the bb with those terms and choose based on your preference : T47 internal, shimano(24mm).
 

julienb

Re: New frame: Longteng RD301-D
« Reply #179 on: December 24, 2024, 04:42:20 AM »
Considering the price, I Choose Praxis T47 – I.B. SHIMANO.
Magene P505 is compatible with Shimano(24mm), so it will work in your case too.

If you have extra money, you can choose change the better bearing(like NTN or ZEN) or you can go Chrisking if you are rich enough.

Because there are several BB brands, find the bb with those terms and choose based on your preference : T47 internal, shimano(24mm).

Thanks for your reply.

Magene website says that T47 is not compatible with their crankset. Have you actually installed one ? Do you have pictures of your build ?
thanks,