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Re: Yishun R086-D Aero Road I asked Yishun directly what the measurements for the front end components are.
Here's their answer for anyone who's interested:

"For R086-D carbon framesest, the cable cover height is 15.94mm, headset top cover height is 17-17.4mm.
Usually we will supply 1pc 5mm height and 1pc 10mm spacers to customer together.
Please kindly check attachment again ( ignore integrated handlebar in the picture ), you will understand it clearly.
We can supply extra 5mm or 10mm spacer to you again if you need."


So, like Patrick said, you basically need to add 3cm to the stack figure of a given frame size. That is where the cockpit goes - one piece or not.
Also, they told me that the minimum required seatpost insertion would be 1/3, which amounts to 11,5cm of 35cm. So keep that in mind to determine whether you can actually set up the required seat height for a given frame size.
August 29, 2023, 02:46:51 AM 		1
Re: Yishun R086-D Aero Road 1000 mile / 1600 km Update

I've been riding my new Giant Propel Advanced Pro for the past two weeks. So switching back to the Yishun really helps put perspective on the frame and it characteristics.

Also I have been using the R086-D with a variety of wheels: Winspace Hyper D67, Elite Drive 65D, Yishun's own wheels, and Yoeleo C50 Pro. A mix between latex and TPU tubes.

Negatives:
-The upper bottle cage mount is too high. While it's easier to grab, it can make putting the bottle back tedious at times. It's probably less aero too and you may not be able to use an extra large bottle without hitting the top tube.

-The gap between the down tube and front wheel. I can't imagine this section being aero since the sizable gap could lead to turbulent air and subsequent drag. Not sure how Yishun could resolve this while keeping the same stack and reach.

Positives:
-The frame is stiff and but not punishing. A $1500-worthy frame for sure and way more exciting to ride than my Yoeleo R12. No detectable power loss through the bottom bracket. Everything "just works" when the speeds get fast. The back end/rear triangle isn't as composed (over bad pavement) as my Propel/AllezSprint/T1500 but decent enough given the price. And superior to all my other sub-$1000 frames.

-The geometry and design as a whole lends itself to be an awesome gran fondo bike. It's not as nimble as the aforementioned bikes but it makes up for it in control.

Even if the R086-D design or geometry isn't for you, I have no reason to believe Yishun's other offerings won't have the same higher level of performance, fit and finish for the price. Pay very close attention to your bike fit and wheel/choice. Not surprising these two areas will dramatically determine who you feel about the frame. You can mitigate the stiffness with 23mm internal wheels with steel spokes. I need to reduce my fleet of aero bikes and the R086-D will probably be the reason I sell my Allez Sprint.
October 17, 2023, 03:18:19 PM 		1
Re: Yishun R086-D Aero Road The Propel is not “four times or x4” better than the Yishun. $3000usd versus $750usd. The marginal gains follow the law of diminishing returns. But considering Giant’s competitors, $3000 is a great value for a 2nd tier frame from a big brand.

What the Propel does better than the Yishun is fit finish, warranty, bike handling, and how frame (particularly the rear triangle) responds to bad pavement. Pairing the Yishun with deeper sectioned carbon spoke wheels makes for a harsh ride for most people. More harsh than my Allez Sprint, but not as harsh as my Dengfu or Tan Tan x38.

The Propel does not suffer from this regardless of wheel choice. It’s a very controlled and predictable ride regardless of pavement. Stiff out of the saddle yet comfortable as an entire system. I’m assuming sub $1500 frames obviously don’t have the engineering budget to wind tunnel test their frames or make considerations to carbon layup. Let alone the quality of carbon being used.

In a vacuum, these small differences aren’t major. But collectively as an entire package they make for a superior ride. You can immediately and tangibly feel your riding an engineered bike. Unlike like my Tan Tan x38 and VB 168 where it feels like the factory simply threw a bunch of carbon together with their eyes closed.
October 17, 2023, 09:10:05 PM 		1
Re: Yishun R086-D Aero Road @Sebastian yep for about 12.00 on amazon. For my 500 frameset, its not an issue (yes there is a bit of frame rub when you put it in and take it out) and I have a size 500 frame and a 24 oz bottle. Actually find it easier to take it in an out than my other frames (less of a struggle reaching for the cage). In the future will look at getting some aero bottle and cages. Reading from some studies that the regular cages and bottles can cause you to lose as much at 10 watts

A criticism I have of yishun is they need to be more detailed with the torque for the various bolts (only a few components included a torque label). I see Elves has it listed on their website. Yishun should do same or include a paper with the frameset stating this info. Note: Had issues with my seat-post dropping even though I set it to the max (note i am 68kg) stated on the component of 8nm (pot holes). They suggested I go 10 and it worked. Also had to use medium strength thread-locker on the stem and handlebar bolts (pot holes) in order to keep them from loosening
October 19, 2023, 08:01:03 AM 		1
Re: Yishun R086-D Aero Road
Quote from: chughes on October 19, 2023, 08:01:03 AM
@Sebastian yep for about 12.00 on amazon. For my 500 frameset, its not an issue (yes there is a bit of frame rub when you put it in and take it out) and I have a size 500 frame and a 24 oz bottle. Actually find it easier to take it in an out than my other frames (less of a struggle reaching for the cage). In the future will look at getting some aero bottle and cages. Reading from some studies that the regular cages and bottles can cause you to lose as much at 10 watts

A criticism I have of yishun is they need to be more detailed with the torque for the various bolts (only a few components included a torque label). I see Elves has it listed on their website. Yishun should do same or include a paper with the frameset stating this info. Note: Had issues with my seat-post dropping even though I set it to the max (note i am 68kg) stated on the component of 8nm (pot holes). They suggested I go 10 and it worked. Also had to use medium strength thread-locker on the stem and handlebar bolts (pot holes) in order to keep them from loosening

I emailed Melinda and asked for Torque specifications of the frame. Will post here as soon as i get a response. I am also in the middle of building the frame as I already have my wheelset which is Yishun's 206db-RSL50c
October 19, 2023, 09:26:18 AM 		1
Re: Yishun R086-D Aero Road Seen this Canyon Aeroad CF SLX 8 for sale in my neighborhood. Looks familiar...
October 19, 2023, 09:39:44 AM 		1
Re: Yishun R086-D Aero Road Please note I did not use the supplied compression plug. When I tried it I found there was too much play. Used Cane Creek Ancora Expansion Plug. See attachment for spacer placement(s)
October 27, 2023, 11:42:42 AM 		1
Re: Yishun R086-D Aero Road Some points to consider...

-My Winspace T1500 (BB86) is currently using a Kogel Bearings DUB ceramic bottom bracket. Over 4300 miles and still problem free. Still spins freely with no creaking.
-My VeloBuild CX frame (BB86) also with a SRAM DUB bottom bracket. Problem free. Although the cheap SRAM branded DUB BBs are known to be crappy.
-My Yishun R086-D frame (BB86) with a CYBREI DUB ceramic bottom bracket from Panda Podium. 1000 miles and no issues. I don't expect problems to arise.

In principle what Hambini says is correct. However in my real world usage I have never had a problem running DUB BBs with BB86 shells. And the best spider-based power meters come from SRAM/Quarg which use the DUB standard. So I refuse to compromise my power meters or be limited to Shimano cranks based the potential for BB failure. That just hasn't happened to me. Keep in mind Hambini and I are buddies in the same YouTube space. Quality BBs should run just fine for thousands of miles.


Now about the headset play issue. In addition to using a micro shim, I also filed/sanded down the bottom of the plastic headset cover. The part that's rubbing on the headtube. Only took about 10 minutes os sanding. I just assumed it was an isolated issue with my particular frame. No more headset play. The time it would have taken me to email my problem to Yishun and wait for an official answer, I figured it out on my own. Honestly I've never contacted any of these brands with my issues. It's more fun to troubleshoot myself and it adds to my bike building experience. It's a cheap frame after all.
October 28, 2023, 12:41:24 PM 		1
Re: Yishun R086-D Aero Road
Quote from: craysor on November 01, 2023, 04:08:32 AM
Something new? I need the torque of the seatpost

Completely forgot about this one I'm sorry. Here's a response from Melinda

Quote
Hello friend,
Normally the torque on the frames as below:
M5: 6-8N
M6: 8-10N
M8: 10-12N

Stem/handlebar clamp and front derailleur, brake screw:  6-8N max.

Best regards,
Melinda
November 01, 2023, 08:06:44 AM 		1
Re: Yishun R086-D Aero Road My Yishun R086-D review is live

YouTube Title: Yishun R086D Review - Budget Perfection
November 26, 2023, 12:05:15 PM 		1