New 2026 Aero-light frame from Light Cycling

[BeR]

After my first post talking about Light Cycling, I have just known that a new frame just popped up from him . It looks very good, but we only get to see a render for now.

 It has T47, UDH, 35c tire clearance, good stack, zero offset seatpost.

The aero should be identical to the SL9.

For me it is a big yes.

Here are the specs :

1)  Material and layup: T800 + T1100 carbon, EPS + latex molding, smooth inner walls; the carbon yarn has good elongation, improving strength and stiffness
2) Seatpost length comes in two sizes: 285mm (for sizes ≤52) and 365mm (for sizes ≥54)
3) Thru-axles: front 12×100mm / rear 12×142mm
4) Disc brake mounts: fork convertible between 140mm and 160mm; rear 160mm
5) Dedicated internal battery mount for electronic shifting, with a battery holder at the end of the seatpost
6) Fork weight: 380g
7) Seatpost weight: 160g
8 ) Frame weight : 850 g for size 54 cm (UD matte)
9) Max chainring 54T

This frame is called RF10 and it is designed for riders who demand aerodynamics, stiffness, and racing performance.

The first batch will be ready at the end of August and presales are opened. You can contact the seller through WhatsApp (+86 180 2696 3351) or his website where there is more details :

https://light-cycling.com/shop/road-bike-frame/lightcycling-surge-rf10/

Edit : 54T is the max chainring (not 52T).

[Majoeric]

Max chainring 52? Lame.

[antoinesbikes]

Looks like it would be soft in the rear triangle -- not sure why there isn't more material surrounding the BB shell

[Jaaniusss]

Seems like the exact same thing as the updated tantan x68 sl9 copy? T47 and everything

[BeR]

Seems like the exact same thing as the updated tantan x68 sl9 copy? T47 and everything

Not the same shape.

[BeR]

Max chainring 52? Lame.

Update : The seller has checked and it is 54T  .

[Sander2177]

Been Speaking with Daniel at Light Cycling since week before last.
Well thank F! he said was 52T yesterday so I said no go!
Made at same factory Tan Tan use for there newly inspired frame!
Said he will test 56/42T when they get a frame and build it

[Dark17]

Is there an actual pic already of the frame?

[ricchirock]

it seems only to me SL9 inspired dhape?

[BeR]

New pictures.

[BeR]

it seems only to me SL9 inspired dhape?

Indeed.

[BeR]

Frame weight (size 54). Slightly lighter than the new X68.

[patliean1]

Any thoughts to what exactly Light Cycling is doing differently than Tan Tan in terms of QC and carbon layup?

[Sander2177]

Any thoughts to what exactly Light Cycling is doing differently than Tan Tan in terms of QC and carbon layup?

Straight from the horse’s mouth — Daniel Zhang at Light Cycling.

He says the main difference is the additional QC and attention to detail. They’ve tightened the inspection standards for the raw frames, and he says virtually every frame can be finished in bare carbon so you can actually see the underlying finish rather than hiding it under paint.

They also do more detailed post-processing: the BB area is cleaned and checked, attention is paid to the disc-brake mounts, head tube and cockpit/headset interfaces, cable-routing guide wires are pre-installed to make building easier, and they supply anti-rattle foam tubing for the internal cables.

So from what Daniel is saying, it’s mainly the extra QC, preparation and finishing before the frame reaches the customer.

Layup no idea

Also, this particular frame is actually manufactured by Longteng and some may fall
Of there chairs but the Tan Tan ‘manufactured’ frame is also made by them as well.

[Dark17]

Straight from the horse’s mouth — Daniel Zhang at Light Cycling.

Also, this particular frame is actually manufactured by Longteng and some may fall
Of there chairs but the Tan Tan ‘manufactured’ frame is also made by them as well.

I asked Alisa from LongTeng if they produce this frame, they said no. Reason I asked her because I am inquiring about their RD302 which is Mondince's FM126.