HongFu FM138

[t-dolla]

I meant to post this build earlier, but better late than never, and I can add a full review as well.

Colour of the frame is top notch!

[akuutti247]

I've gone through this entire thread twice, and have searched through HF's site at least a half dozen times already, but I can not find any info on the fork offset measurement. Does anyone know what it is?

Hello

Do you mean fork offset 51 mm or 44 mm? It used to be usually 51 but has gone down to 44.

https://www.theproscloset.com/blogs/news/why-mountain-bike-use-reduced-offset-forks?srsltid=AfmBOoqo4Z5fp6ZDJ38pZmztZLi0_yNaCApBh1HUxdMMeB1gi82xLvwb

Sorry if I missunderstood your question..

[Hayek]

Hey, @Hayek what LightCarbon wheels did you get? I'm thinking about their trail model, but 26mm internal width is a bit narrow for my liking. Anyone running HongFu FM138? What wheels do you have on yours?

I had LightCarbon build the "MC932GP-XC" rims with DT hubs. Those are 27mm ID, which is in line with what I like for an XC bike, but I was also aiming for a sub-1200 gram wheelset and that was the way to get there. They're absolutely awesome wheels.

But yes, if you want wider ID, maybe check out Elite. I have two of their wheelsets (Pro33 XC and gravel) and the build quality is really impressive. Their Pro36 wheelset has a 30mm ID, and aren't overly heavy.

[Figo]

Hayek! Thanks a lot! Your answers are really helpful to us all.

[dan_cx]

Hello

Do you mean fork offset 51 mm or 44 mm? It used to be usually 51 but has gone down to 44.

https://www.theproscloset.com/blogs/news/why-mountain-bike-use-reduced-offset-forks?srsltid=AfmBOoqo4Z5fp6ZDJ38pZmztZLi0_yNaCApBh1HUxdMMeB1gi82xLvwb

Sorry if I missunderstood your question..

I'm trying to find what offset the frame geometry is designed around. I have frames that were designed for a 51 that I've put 44 forks on and it definitely changed handling characteristics for the better, but I've experienced the opposite effect putting a 51 fork on a 44 frame. Since I'm building this for the Mrs... well, I don't really need to explain more than I'm building her bike. 

[akuutti247]

My freshly built FM138. I like to create funny bike brands. This is first POMP (bounce, boing, jump). My second Epic Clone front triangle lasted less than 300 kilometers, so I ordered this to save the coming summer. Sometimes PF92 may be a good choice. Most of the parts are from Epic Clone. I may have to buy more Pirelli tires now..

[Joselu]

I've just bought the frame, so I'll let you know once I get it built (I'll be moving the components from my old Orbea Alma).

About the bushings, I've read in this thread that I should get 8x16mm and 8x25mm, but on the Ridley forum, I've seen 8x16mm and 8x22mm instead.

Could you please help me out with this? I've never built a full-suspension bike before. Anything else I should keep in mind?

[scoff]

Do you have a link to the Ridley thread, I've looked everywhere for one and couldn't find it

[Joselu]

sure thing, is the support page

https://support.ridley-bikes.com/nl/support/solutions/folders/63000237070
https://support.ridley-bikes.com/nl/support/solutions/articles/63000275624--ridley-which-suspension-hardware-do-i-need-for-my-rear-shock-

[darkening]

8x16 shaft and 8x25 body(mine doesnt fit, have to sand about 0,5mm. Because it was 24,6mm measured).

[edo_mtb]

Hi, I’m working on the frame and I wanted to ask you:

- does anyone use a chainguide on this frame?

- what chainstay and others protection for the frame do you use? Such as for the bottom, and for the rear triangle/frame space? Sorry I don’t know the specific names in english.

Thanks!

[ELTR]

Hi All
I am considering this frame but have a couple of questions.
Does the rear triangle move free without tension if the rear suspension is not installed.
I was also thinking about the TanTan Fm121 but some of the customers claim that there is too much tension on the seat stay as there is such a difference in radius of the seat stay vs the swing arm (see in the picture).
Is this the same with this frame or would anyone of you be so helpful and send me a picture like this to show if the rear triangle connects to the swingarm without tension.
Picture is taken out of the fm 121 thread.
Thanks in advance

[akuutti247]

>> edo_mtb

I used (look at the pictures above)

seat stays: black glossy car wrap (can not be seen in the pictures above, same color as frame)
chain stays: a thin layer of white material (the frame is wrapped with when it comes) on top of chain stay and black electrician tape (not the prittiest but it works)
seat tube: basic duck tape
down tube: Gorilla tape
top tube: car stone chip film, see through

[edo_mtb]

Thank you!

Sorry for my ignorance, I’m trying to install the Bottom bracket, it’s the XT model.
On the right “drive” side, there’s a 2.5 mm spacer, (as in the picture). Looking online, I found that some frames need it, others don’t, so what do I do?
Do I use it in the installation or not?

Thanks!

[akuutti247]

I have 30mm Race Face cranks so I can´t say about Shimano width. If you have or can buy thin 24mm spacers for Shimano axle, it is easier to adjust the chainline and width when the spacers are outside of the bottom bracket cups though.