Sorry, this is 2018. No such thing as chainring not worn in… it is either poor chainring quality or poor tuning.

Had a chat with bike mechanic bout this issue, he says two possibilities :

1) Chainring doesnt look as rigid due to very thin and light..higher pedal load may flex it and some chain rub noise. Sounds plausible to me, but certainly doesnt feel in buffiness like the shimano road cranks.
He reason u don't see Shimanos making this kinda light and thin cranks, if it works well..it would have been done and marketted....hmm.


2) My back hub is actually busted, and the cogs actually sway in motion when the wheel spins. Didnt aware that cogs could actually goyang around..likely the cup cone bearings is unseated, thus imbalance.

Gonna do a wheelset change this weekend, and hope the whirring sound is due to my back hubs. If not, will be pulling hairs again.

After the short period of a few years owning a foldie..sometimes i wonder if i should just ditch it, as there seem so many maintenance and problematic issues arised off and on.
Frame creaking, handlepost getting loose, drivetrain weirdness ...sigh...starting to wear me off.

Owning a MTB has been rocksolid without facing much issues.

But , i like riding and owning a foldie...hahaha....hence soldier on..

Mini velo seems minimal maintenance.

rule of thumb a folding bike must be of good quality otherwise it is a hassle owning them if you do not know how to maintain it. I got brompton it seems holding up well with minimal maintenance, but my Fnhon after a ride in rain need to clean and lube all the joints otherwise will have sound.

+1.

And i had thoughts of possibility getting a tern verge copy of fnhon frame , ..haha.. probably should scrap the idea.

My is a lowly dahon vitesse, and i thought these should be some decent...

this one?

Yeah..that frame design..sporty..how is the frame?

+999

letting my xplova x3 cycling computer if anybody interested .. thanks
https://forum.lowyat.net/topic/4600325

currently, im waiting for replacement fd only for final setup. i didnt test much yet. maybe will used microshift fd since its cheap. the frame and setup will suite 170cm above rider due to its frame geometry, 29cm litepro tbar handlepost and the dropbar.

my friend using complete shimano 105 5800 groupset with doval 5g nano 52/36 chainring and as i suspected the shimano 105 5800 brazed on fd wont fit the frame.

so far the feel is good, accept the handlepost are not stiff like my tern 3d tbar handlepost. weight wise, this litepro handlepost are much lighter than my tern handlepost even though both came with same height.

the trigon half carbon fork also give some comfort feel compare to aluminium (stock fork) and less hastle to setup. fyi, my full carbon fork weight less than this half carbon trigon fork and absorb more vibration. the drawback of the full carbon fork is u need to tighten ur handlepost on certain milage (part of the maintanence).

this frame is good. i bought for my friend the disc version frame bcoz of the silver polish color only available on disc version. since it was equipt with 451 wheels and carbon fork, theres no problem mounting a cbrake rather than heavy disc brake.

will share the feel and expirience after we finish the setup.

happy holiday everyone,
and Selamat Hari Raya Aidilfitri to all muslim user here.

Selamat Hari Raya and a happy WorldCup season!

This post has been edited by KenC: Jun 14 2018, 08:45 PM

Please do check your bike regularly.

When I lifted my bike 7 yr old bike with 11,000km, I could feel the free play on the stem and fork. Later found out that the fold was not tight enought. I tighthen the rod, much better. Did some cleaning, found broken tension pin.


I could not see the crack as it was hair line crack until I pushed up the tension pin.


Bought latch lock from ACE for RM15. The latch is almost same as the tension pin.


Needed to file new pin shorter.



Job completed.

I believe most folding bike brands, as part of regular maintenance, recommend periodically check the weld lines on the frame hinge and handlepost for cracks or signs of metal fatigue. If foldie rides his bike heavily, for example over 25 km per day, in all kinds of weather and over rough roads, then should inspect the bike every 2 weeks. If suspect metal fatigue, even if there are no cracks evident, or bring the bike to an authorized dealer for checking.

BIKE FITTING REALLY IS A TIME CONSUMING PROCESS, ESPECIALLY WHEN YOU DECIDED TO DIY.

I recently switch to a dropbar for my cap ayam bike. So, once you change a part to your existing frame, means that you'll mess up your previous riding geometry as well. At first, the fitting was done at my LBS, all in all i was quite ok with it, since the riding position was set up for comfy, which means it was an upright position. However, when i got home, and saw the video of me riding it, i wasn't quite satisfied with the outcome. I could not fully use the drop without having my back curled. So, i decided to diy my fitting. It all started with changing the stem. From 50mm to 70mm to 100mm 17°. Still curling at my backside, like a turtle.

Then i tried a bike fitting app. Paid rm20 for it. Didnt exactly help much, but it did give advice on what im suppose to adjust, though the measurement is not really helpful, since that app was made for rb fitting. But, nonetheless, i got the message. I started experimenting with the saddle position and the seat height. The ride position improve, but it's still not perfect.


Searching online,i finally stumbled upon a website where it can measure your body angle either from a video or a photo. What a great help it was. I finally achieved a much better backside. Yess!

Photos :
(Top Left) a reference of what im trying to achieve
(Top Right) 100mm 17° without adjusting saddle and seatpost.
(Bottom Left) 100mm 17° after saddle and seatpost adjustment.
(Bottom right) I flipped the stem!! and look at how much difference it made to my backside. And i think i got closer to what im trying to achieve (top left photo)..Woohoo!

It really is impressive to know even minor adjustment to your bike can affect your riding position so much.

Now, only thing left to do is to test ride it on the road and see if there are still adjustments that needs to be made. *feeling anxious*

This post has been edited by fatani: Jun 17 2018, 02:00 AM

Tell la the website name… potong steam ler… 😅

+1.

Wah wah.. i didnt mentioned the web eh? Sorry2.

www.obstri.com

The best thing is, it's free! Hee hee. Have fun guys!

Just to share a bit of experience, even though you guys might get a good riding angle on the web, you still need to test it out riding the bike. I tested mine on the roller, and after a while, i started to feel pain on my shoulder and my lower back, which indicates that the stem is probably too long. You have to take account on how much your elbow is bent becoz that will determine how relaxed your shoulder will be.

I switched back to shorter stem and adjust the fore aft of the saddle to get a better angle of my wrist-shoulder-hip. Recommended angle is 90°. Hip-knee-ankle should be around 25-30°, but some fitter recommended 33-48° which i find more comfortable for higher cadence pedalling.

50mm 5° stem.

In the drop and on the hood. My shoulder is more relaxed and the aero position isnt too bad.

This post has been edited by fatani: Jun 19 2018, 03:27 PM

May be low price due to Trump's new tariffs