Yishun R086-D Aero Road

[patliean1]

4k for mechanical 105 with budget 300 bucks wheels, boy these guys are ambitious.

The fake Pinarello logos are worth 3k

[neobiker]

The fake Pinarello logos are worth 3k

Lol, seriously?

[pearl]

Haha I'm almost certain I will sell the TanTan mainly for geometry reasons. And redundancy of road bikes.

Like it’s tooooo aero and harsh?

[patliean1]

The downside to constantly reviewing cheap frames is you eventually become apathetic and less attached towards them, as the entire process becomes monotonous. It's like the problematic nature of "fast fashion" but in the bike industry.

I live 15 minutes from the only two official Specialized flagship stores outside of California. I don't love the look of the new Tarmac SL8, but the specs are enough for me to consider dumping the majority of my cheap bike fleet to buy one.

[pearl]

something about smashing people with bikes that cost a fraction of the price is something that makes me tick... i cant help it!

[patliean1]

The frameset arrived today. 6 days total. First impressions are the frameset legitimately looks OEM-quality. Whatever that means. The separate stem I ordered is straight identical to my latest Yoeleo R12, and Yishun also included the Di2 rubber battery seatpost mount. I don't recall any brand under $1000usd providing stuff like that. Also the included plastic headset cover and spacers are of very similar quality to both Yoeleo and Winspace. Caliper mounts (upon quick inspection) are properly faced. Probably the best faced mounts I've seen under $1000.

I can't remember whom in this forum said Yishun/LightCarbon was a step above the other cheap frames, but so far I tend to agree. If you remove the matte black paint, you're basically looking a mostly aero-ish frame around 1000g. The frame kind of has some Pinarello Dogma F elements to it with the funky shapes. The geometry and unboxing makes me excited to dismantle my TanTan x38 (I dont love that frame) so I can get this one going before fall. The only weird quirk is the fork is almost 100g heavier than any other frame I've tested. CX and gravel frames included.

Frame (Size 54): 1114g
Fork: 488g
Seatpost: 238g
Handlebar 40cm Width: 242g
Stem (130mm -10): 182g

Other Frame Weights For Reference
VeloBuild 168 (unpainted): 1005g
VeloBuild 177: 1044g
Dengfu R12 (unpainted): 1112g
TanTan x38 (unpainted): 1148g
Winspace T1500: 1218g
Yoeleo R12: 1344g
2022 Allez Sprint: 1521g

[svanimpe]

Is that the HB058 handlebar? If so, could you check the reach, and the width of the clamping area?

[patliean1]

https://www.yishunbike.com/product/hb058/

[Dark17]

I am planning to buy this frame but the reach is too much for me at size 540 (which is the correct size for my height). I think 520 might be the right size for me if ever I buy this frame and I'll just request for a 400mm seatpost.

[svanimpe]

https://www.yishunbike.com/product/hb058/

Thanks, but I was hoping you could double-check that  I suspect this HB058 is identical to what some other brands are selling, but the reach numbers vary. On the drawing, Carbonda specifies 75mm reach, but that seems to be measured center-to-edge, not center-to-center.

Also, the 50mm clamping area is barely enough for a stem, so that wouldn't leave any clamping room for bike computers, lights, etc... Something that really annoys me on aero handlebars.

[raisinberry777]

Also, the 50mm clamping area is barely enough for a stem, so that wouldn't leave any clamping room for bike computers, lights, etc... Something that really annoys me on aero handlebars.

Almost all of them (particularly ones that leave no clamping area) will have some kind of integrated solution for an out front mount - then the light can be run below with a GoPro adapter. If not, you can get the type that screws into the stem bolts, I prefer those anyway for the super clean look.

[patliean1]

More pics and my initial thoughts coming soon. For now all I can say is...wow.

Rest in peace all my other cheap Chinese frames.

[joegal]

More pics and my initial thoughts coming soon. For now all I can say is...wow.

Rest in peace all my other cheap Chinese frames.

Actually looks a lot better than expected! I did not like the frame shapes, but on a complete build it blends in nicely.
Will you paint the frame later on?

It even features a slight speed-sniffer! Thats some proper SL8 aerodynamics 

[Sebastian]

I was gonna say the same. I really didn’t like the looks of the bare frame. But as a full build this thing looks very very nice.

[patliean1]

The matte black paint, aero wheels, and my saddle to bar drop really help mask the frame design quirks. I'm going to keep the bike as shown, as I'm almost at my limits mentally this season with tinkering with bikes.

Some notable things:
-The caliper mounts were perfectly faced. First time ever in a sub-$1000 frame. Took me only 10 minutes to align the brakes.

-The supplied bolts for both the saddle clamp and seatpost are robust.
Saddle clamp uses two bolts: a 5mm and 6mm size bolt.
Seatpost clamp foregoes the standard 4mm bolt in favor of a 5mm.

-I ordered a 40cm width separate handlebar. My measurements show 38cm at the hoods (center to center) and flares to 40cm in drops. This is perfect, as I originally requested 38cm bars of which were sold out.

-Fit and finish around the frame from the bottom bracket to the headset cups were practically flawless. Yes I'm aware that paint can easily cover imperfections, however this isn't any different than ordering a painted frame from any brand on the market.