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Messages - kbike

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1
Component Deals & Selection / Re: LTWOO RX hydro sets
« on: July 06, 2023, 10:27:18 PM »
Air screw is fine to use.
Here's how used the second (air) screw.

keep the caliper bleed valve closed.
Syringe on the hood bleed screw normally used for the cup.
Open and remove the air screw.
Push fluid from syringe very lightly. 
Fluid will come out of the air hole. So have towel ready.
Put air screw back on. Remove syringe and put bleed screw back on.
Clean any mess.

I have no idea how to use a cup on the bleed hole and open the air screw. 

Remember to unscrew the adjustment grub screw on the level anytime you bleed the brakes. So you fully release the piston to fill the valve. That way you have the best chance of getting the firmest feel. You may still need to tighten up the grub screw.

2
Seen gc performance erx update and teaser of the winspace agile.

So the erx is sleeping @15 secs. With no movement(vibration) of the rear derailleur. It seems sensitive to quickly turn back on. I guess with smooth enough roads it's possible the derailleur could turn off and you can't shift. I wonder how it acts going uphill. When going slow and not that much vibration happening will you get stuck in a gear. Basically any stop would be enough for sleep.  I wonder how he was getting no front shifts but the rear was working.
As of Firmware 0.0.6

3
I doubt there will be er9. The erx is 11 or 12 speed. Pretty sure I saw the erx in aluminum. So that is probably all the options unless they add gravel/mtb derailleurs.  Be sure to watch ltwoo setup video if you buy the erx.  It will get you setup way faster than just guessing. The app also has the instruction manual.

4
Do you guys need the correct size 7x9 saddle clamps?

Here you go.  They only provided me the 7x7 clamps when I bought this frame last year.  I'm guessing they still only send the 7x7 mount.

https://a.aliexpress.com/_mrs5jHS


5
Component Deals & Selection / Re: LTWOO RX hydro sets
« on: June 03, 2023, 12:32:31 PM »
There is a problem with sensah shifters when mounting them flaring out.  When you go into the drops and pull the brake the levers will shift.  This is a huge issue when going downhill and the front shifts. Having the right do it isn't as huge an issue. 

This happens cause you hand is pulling the lever diagonally.  It doesn't happen as much when braking from the hoods but will do it.

Interesting that the right only does double shifts. I wonder if the new shifters are harder or longer to diagonally pull brake and get accidental shift.

6
Component Deals & Selection / Re: Groupset News
« on: May 08, 2023, 02:53:29 PM »
My sensah shifter logo and grip are worn.  That isn't the biggest issue for me.  I have them 2x with srx rear derailleur on my gravel bike. I have the shifters mounted inward on my bars.  This causes shifting when braking. This isn't fun having the front click to small ring and you not know it til the bottom. I'd suggest keeping the hoods as inline as possible to stop the shifting when braking.

I wonder if their hydros have the same issue.

7
Component Deals & Selection / Re: Onirii hydraulic flat mount brakes
« on: April 27, 2023, 09:48:12 AM »
Did you push the piston out of your caliper? If so just push it back in evenly. When the piston gets pushed out it usually fine. Just takes a lot more work to bleed air out. Also just watch around the piston for oil leaking. If it is leaking you could look for the oring(s) seal (might be a square edged orings) to replace it. Don't let your pistons get damaged around the seal. Make sure no grime is on them either.

I've reused the olive. It's not a huge deal.  It can be a pain to set a barb even with basic tools.  You don't have to replace the full hose when switching. Just cut the end with a razor, knips, hose cutter, scissors. Then new barb and olive.

I'm going to do one more ride tomorrow with the onirii calipers.  I did a ride Tuesday stopping was fine.  I just want to be sure my pistons are moving and releasing evenly.  I have tons more stop and go lights for tomorrow's ride.

8
I have 24g ride now tubes.  They aren't as wide as their 34g tubes.  The original tube fits up to 32mm tires. The 24g tubes are for 28mm tires.
The tubes now come with a circle sticker instead of oring for the stem.  The plastic for the stems are really rough not glossy smooth like last years. I'm guessing the mold they are using is getting rough. 

They are using the cyclami quick patch kit now.

9
Component Deals & Selection / Re: ZRace Disc Brakes
« on: April 14, 2023, 01:41:14 PM »
I still use them on 2 bikes. My 168 frame and one gravel frame. I'm happy trust them to work for me. Yes like you say they do take time to adjust even as the pads wear.  I have upgraded pads I need to install.  Just been using my free time messing with the hydro stuff lately. 

10
Component Deals & Selection / Re: Onirii hydraulic flat mount brakes
« on: April 12, 2023, 10:30:35 AM »
There is a design flaw that will cause only 1 piston to move.  I also found a random metal washer floating behind one piston. No clue why it was placed there unless it was to prevent full bottoming out of the piston. Idk

As for the flaw.  The pin hole port to flow fluid to one piston is 90* of the hose.  The hose does block this port preventing equal flow or completely blocking flow.  Not seating the hose fully into the caliper was how I prevented the blockage.  This was a pain. you have to guess where the olive will compress onto the hose.  Getting the olive placed just right will stop the hose from fully seating into the caliper and allowing free flow of fluid to both pistons.

As for use only have 1 ride so far. I'm doing another tomorrow.  I had to strip my bike after the gravel race. I had an inch of sand under bb and the bb bearings were destroyed.  So I've had more maintenance than riding on that bike.

11
It's on aliexpress alright.  912 no box 925 w box and I'm seeing 70 shipping. 

It's not hard to find if you must buy it now.  I won't share the link. I'd rather not see anyone get screwed jumping in on this at release.  Who knows what gremlins could happen and then your sitting waiting for help after putting 1k in.


12
Component Deals & Selection / Re: LTWOO RX hydro sets
« on: April 03, 2023, 05:43:05 PM »
I'd use the hose type 1st ment for the caliper.  So if the calipers were designed for bh90 first try those. If you don't like how they feel or the calipers don't move correctly install bh59 hoses. 

13
Component Deals & Selection / Re: LTWOO RX hydro sets
« on: April 02, 2023, 05:49:50 PM »
Yes the xg are flat mount. I have them already.  They are 100g lighter than the l twoo calipers with 160 rotors.  With 160/140 I'd say about 120g lighter. You still need the bracket for front caliper with xg and other flat mount models. They use the same pad size.  I think they put in the l03a copied pads on the xg.

I haven't swapped them yet. Had a wicked gravel race yesterday and wasn't going to chance not bleeding them fully during the swap.

14
Component Deals & Selection / Re: Chinese cycling clothes
« on: March 28, 2023, 03:37:58 PM »
Ask the seller before ordering.  I've gotten thicker chamois and no logos from sellers. Sometimes they will be able to do it.

15
Component Deals & Selection / Re: Groupset News
« on: March 24, 2023, 04:05:02 PM »
Yeah I'd say they are trying to stick to the single lever action. Might explain the long hoods.  They might be limited for positioning the hydro and gears to function off the single lever.

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