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Messages - hsaus

Pages: [1] 2 3 ... 6
1
I purchased two RT-CL900 rotors from this store (0033 Cycling). They're fine, still using them. At one point, one rotor bent slightly and started rubbing, and I had to use a tool to bend it back, but this is normal with Shimano rotors AFAIK.

And I've received Shimano rotors in a box from a local retailer that were bent worse out of the box.

2
This bell actually looks functional.  :)

https://www.aliexpress.us/item/3256808412968976.html

Looks similar to the bar end bells that Canyon sell. I've been looking for exactly this type of bell, thanks!

3
Thanks but I tried that. Screwing it in didn't have any effect. I feel something with how it is installed might be wrong.

Is the B screw pushing against the derailleur hanger? I haven't used the RX mechanical derailleur, but here's a Park Tool video showing a few examples:

https://youtu.be/meUQ-BiFL28?t=105

4
Maintenance, Mechanics, & Tools / Re: Which immersive wax are you using?
« on: February 12, 2025, 02:20:49 PM »
I'm using paraffin wax and PTFE powder, a local eBay seller had a listing for the combo. I'm happy with it and will keep on using it, as I got 1 kg of wax! ZFC suggests that paraffin wax works quite well, though it's not quite as good as the best commercial waxes.

I've been re-waxing every 300 km, though I've been wondering if I could push that further, especially since I don't ride in the rain. There's no noise or squeak by the time I reach 300 km.

But stripping the factory grease off new chains is a faff, so if I was starting again today, I'd be very tempted by the Silca strip chip.

5
Road Bike Frames, Wheels & Components / Re: Best TPU tube brand
« on: February 12, 2025, 12:36:25 AM »
I've been using a pair of RideNow 24g TPU tubes with clear plastic valve stems in a pair of 28c tyres. They've been great, they hold air really well. Note that they're only designed for max 28c tyres.

On another bike I use the RideNow all-road tubes with clear plastic valve stems - the 39g ones for 28c-38c tyres. Same great experience with these.

Previously I used the Offbondage 40g tubes with black&silver coloured valve stems, again no issues.

The only TPU tubes I've had issues with are:

  • Older RideNow tubes with black plastic valve stems.
  • Older Cyclami tubes with threaded metal valve stems.

6
tl;dr
Excellent pedals after a few tweaks, and the Time Xpresso 12 option is lightest road clipless pedals+cleat combo AFAIK at 248g total for pedals + cleats + hardware, undercutting even the Xpedo Sonik. Replace the bushings with 3x MR138-ZZ bearings, and replace the cleat bolts with M5 8mm bolts.

The experiment
I've been experimenting with some fake Time road pedals from AliExpress and wanted to share my experience in case anyone else finds it useful. I had never used Time pedals previously, and my motivations were:
  • Saving weight. Result: I saved 106g!
  • Feeding my never-ending desire to tinker. Result: ;D
My current favorite road pedals are the Exustar E-PR4ST with the Look Keo-style E-ARCR2 cleats. Inexpensive, stable and durable cleats, excellent bearings, perfectly weighted for easy clip-in, and with spring tension adjustable all the way from "easiest road pedal clip-out ever" to "welded-in like a Shimano SPD-SL at max tension". However at 354g total for pedals, cleats, and hardware, they're not the lightest option on the market.

Pedals
I was in a weight weenie mood one day and ordered these pedals from AliExpress, both are knock-offs of discontinued Time pedals:
The Xpresso 12 pedals are identical to the Costelo pedals featured on Trace Velo (video title: "Chinese Cost Cutting Masterclass - Costelo vs Time Xpresso pedals"), except that the sticker on the leaf spring has the Time logo.

The XPRO 15 pedals have a fairing at the bottom, which makes them slightly heavier (+21g), marginally more aero (really??), and more importantly provides better protection for the leaf spring when you accidentally stomp down on the wrong side of the pedal.

Both sets of pedals have titanium axles, so if you can sprint at 2000 W, you should probably look elsewhere.

Bearings and bushings
Both sets of pedals have a 6801-ZZ shielded bearing near the crank arm, and a bushing at the other end. The Xpresso 12 pedals have a plastic bushing measuring 16.2mm length, 12.9mm OD (forgot to measure ID). The XPRO 15 pedals have a metal (aluminium probably?) bushing measuring 7.5mm length, 12.5mm OD, 8.2mm ID.

At first I tried replacing the bushings with MR128 bearings, and then with HK0810 needle roller bearings, but in both cases the result was far too much play in the pedals. The bore seems to be wider than the original pedals, so the 12mm OD of those bearings was too small, and adding grease didn't fix the problem.

With the XPRO 15 pedals, I put the metal bushings back, and then tweaked the amount of grease (regular lithium grease) until the pedals spun smoothly but not too freely, and without excessive play. After some trial-and-error, I got them to a point where I'm very happy with them. After unclipping, they return to a vertical position for easy clip-in, and there's just enough resistance that a failed clip-in doesn't send them into a never-ending spin.

With the Xpresso 12 pedals, I couldn't get them to spin as I wanted with the included plastic bushings no matter what I tried, so I replaced the bushings with three MR138-ZZ bearings per pedal. Note MR138, not MR128. Combined with a small dab of grease (not too much!), and the result is excellent - no play, and smooth spin, just like the XPRO 15s. I tried four bearings per pedal too, but that ended up being too restrictive.

I also tried replacing the larger 6801-ZZ shielded bearings with some cheap 6801-2RS sealed bearings, but this resulted in way too much drag. Possibly because my replacement bearings were poor quality. For now, I'm sticking with the shielded bearings, but if they fail, I'll invest in some better low-contact seal bearings. I rarely ride in the rain, so I hope the bearings will last a while. I added some grease between the end cap and the bearing for a little extra protection.

Cleats
Both pedal sets came with identical fake Time iClic cleats with float. The included cleat bolts have heads that are too narrow, so I replaced those with some M5 8mm bolts from AliExpress.

Original Time iClic float cleats are left-right specific, and each cleat is marked with an L or R. If installed as specified, you get a Q-factor of 51.7mm, but if you swap them (left cleat on right shoe, and right cleat on left shoe), you get a Q-factor of 54.3mm.

The fake iClic cleats are not marked as left or right, but they are in fact also left-right specific, just like the originals. You can identify which is which by looking at the asymmetrical hook near the rear of the cleat. There's a notch on the hook to help align the cleat, and the sides of the hook are chamfered at different angles. On the right cleat, the right side is chamfered closer to 45 degrees, while the left side is closer to 90 degrees. You can tell quite easily in this picture: https://www.sram.com/globalassets/image-hierarchy/sram-product-root-images/pedals/pedal-cleats/pd-iclc-cleats-a1/productassets_pd-iclc-clts-a1_fg/am-pd-cleat-r-mob-bk-xpresso-xpro-a5-c-top-s.png?w=1000

In the attached photos of the cleats below, the cleat on the left is genuine Time, and the cleat on the right is fake.

Ride experience
I like the pedals, and I use both pairs on two different bikes! Clipping in and out is no different to Look Keo or Shimano SPD-SL pedals. The float pivots at the center of the cleat, rather than at the front, so in that sense it's similar to the yellow Shimano SPD-SL cleats. The cleats self-center, though I don't really notice while riding, unless I'm specifically paying attention to it.

Genuine vs fake cleats: With the XPRO 15 pedals, I can't feel any difference at all between the genuine and fake cleats. Same force required to clip in and out, and same float. Although I've never used a genuine Time pedal, I suspect that the iClic mechanism isn't as smooth as they should be on these pedals. Lots of reviews of Time iClic praise the ease of clipping in, with the common mousetrap analogy. These pedals don't give me that feeling, they require a little more force to clip in than my Exustar Keo-style pedals, with both set at the lowest tension.

With the Xpresso 12 pedals though, I've found that I need to use the fake cleats. The genuine cleats will either trigger a "click" but fail to actually clip in, or they will - with some force - clip in really tight, with barely any float, and requiring quite a bit more force to unclip. No issues at all with the fake cleats.

Other points to note
  • If you remove the circlip that holds the larger 6801 bearing in place, and the circlip deforms, replace it with an M12 external circlip. This is important, as the circlip is what keeps the pedal body attached to the axle!
  • Unlike original Time pedals, there is no washer/seal between the end cap and the 6801 bearing. I added a bit of grease here for protection. Be careful to not add too much, otherwise the pedals won't spin well.
  • The end caps on both left and right pedals unthread the same way. There are arrows on the end caps that guide you - follow them. Trace Velo also pointed this out in his video.
  • The fake iClic cleats don't have a marker for where the middle of the pedal axle sits. I made my own marks by aligning the fake cleats with a set of genuine cleats.
  • I have not tried the fake iClic cleats with genuine Time pedals.
  • There's a tool available on AliExpress for removing the end caps from the pedals. My end caps wear the scars of my repeated disassembly and reassembly, so I've ordered it now. Should've ordered it earlier!

Links

7
Did the max cassette size change? I'm seeing listings saying its now 50t plus capable.

Mine is the road R9, not the gravel GR9. The RD in my new group looks the same as the one from the old group, so max 32T by spec. But I'm using Shimano derailleurs, so haven't inspected in detail or tested the claim.

8
In the hydraulic version you can shift multiple gears in one push in both directions.
But the mechanical brake version is different, the thumb lever only shifts one cog at the time.

The hydraulic shifters have also been updated so that the thumb lever only shifts one cog at a time.

I have an older R9 hydraulic set where the thumb lever can do shift multiple gears, but the R9 hydraulic set that I bought recently can only do one at a time.

The logo on the larger shift paddle is different on the two versions.

9
I'm not familiar with this specific frame, but two of my frames came with two different grommets for the frame opening where the front derailleur cable exits. One grommet was soft rubber/silicone for Di2 cables, the other was a plastic piece that had a bolt and retention nut to keep it firmly in place. This plastic piece acts as a cable stop for mechanical shifting.

Alternatively, some front derailleurs now have a built-in cable stop, so you can run the housing all the way, e.g., Shimano 105 FD-R7000.

10
When I set up mechanical shifting + hydraulic brakes entering the head tube via the head set dust cover, I ended up with grease all over the hoses and cable housing, and I figured that'd help with cable rub for a while at least ;D

I only really feel some slight resistance when the handlebars are turned a lot, which I'd never do on rides.

I don't think foam would fit in the head tube of the Spcycle G056, at least not with 2x hoses + 2x mechanical shift housing. But some electrical tape on the steerer might work well.

11
Road Bike Frames, Wheels & Components / Re: LEXON Road Carbon Crankset
« on: December 29, 2024, 04:22:11 AM »
PSA: Check your NDS crank bolt torque

I took my newly rebuilt bike out for the first proper shakedown ride today, previously I had only done a few laps of the block and a fit session on the trainer.

After some sprint efforts, I noticed what at first felt like a loose cleat - the left shoe somehow felt like it had too much float. But I could unclip and clip in again just fine, so I continued. When I got home I realized that the NDS crank arm was coming loose from the spindle! Had I continued much further, the crank arm would likely have come off completely.

I have the 29mm aluminium spindle version with the black crank arms (no big Lexon graphic), and the NDS crank arm came attached to the spindle out of the box. I torqued the DS crank arm properly when I installed the crankset, but I naively assumed that the factory would have attached the NDS crank arm to spec, and so I didn't verify that during assembly.

I have now torqued both sides properly, and I will do a few more shakedown rides before I take on anything serious. I'll report back here if anything else happens.

For reference, my bike uses a T47 bottom bracket with internal bearings. On the initial installation I used a 3mm spacers on the DS (as per the SRAM DUB spec for non-wide road crankset), but I replaced this with a 2mm this time, mainly because the crank arms seemed to extend a touch further out on the DS compared to the NDS (by the inaccurate method of judging distance to the chainstays).

12
Component Deals & Selection / Re: 2022 - Rotor recommendations?
« on: December 27, 2024, 03:46:34 AM »
Has anyone used rotor zrace rt-rx plus ice-tech or meroca ultralight sr03 (looks similar)?
Could you share your opinion?

I use this Enlee rotor, which I believe is the same. On sale it can be US$13 or so. It's great - installs fine, solid, no more noisy than any other disc rotor, packed well (the second pair I ordered came in boxes). The only downside is that it's heavier than advertised, the 160mm rotor is about 140g, excluding the lock ring.

Oh, and the lock ring is the externally splined one. Great if your bike uses 15mm or bigger thru axles, but for 12mm thru axles I much prefer the lock rings with internal splines.

https://www.aliexpress.com/item/1005006904266295.html

13
I've used both, but I believe BH59 is what ships with LTwoo hydraulic shifters/calipers.

As long as the barb matches the hose type, it's all good. So if you buy some BH90 replacement hose, get the BH90 barbs to go along with it. The rest is either the same or interchangeable.

14
Nice build! And the black fork pairs well with the white frame.

- 34cm flared drop bars

Woah, that's narrow! How wide are the drops?

Also the geometry is kinda funky,

I felt the same initially, lots of wheel flop, probably because of the very slack head tube angle and high trail. I'm used to it now though, and I like the confidence that the long wheelbase gives me on bumpy descents.

15
Road Bike Frames, Wheels & Components / Re: LEXON Road Carbon Crankset
« on: December 20, 2024, 10:55:54 PM »
I received the new design crank arms with a 29mm aluminium alloy spindle. I installed it in a frame that has a threaded T47 bottom bracket with internal bearings. The cranks fit just fine.

I added a 3mm drive-side spacer, as per the SRAM DUB instructions for T47 / 85.5mm / Road (https://www.sram.com/globalassets/document-hierarchy/compatibility-map/road/dub-choose-a-road-bottom-bracket-compatibility-map.pdf), and the preload ring took up the slack.

The spindle claims a 44mm chainline, but I haven't verified that yet.

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