Precision-c21-disc-wheel-time-trial-triathlon-aero-wheel

Light-bicycle-precision-c21-tubeless-capable-carbon-disc-wheel-for-tt-triathlon-race

Lightbicycle-precision-c21-full-disc-wheel-700c-aerodynamic

Light-bicycle-precision-c21-tubeless-compatible-tt-tri-disc-wheel-700c

Build Your Falcon Pro WHEEL Precision-C21 Disc-Rear

All wheels are 100% customizable at Light Bicycle. If your preferred specs are not listed, feel free to contact us (sales@lightbicycle.com) with your special requirements described.

Global Shop

NA Shop

EU Shop

AU Shop

Ships worldwide. See what's on sale>>

Drain Hole This is a required option.

With Drain Holes

Center Channel Hole This is a required option.

No Access Holes

Version This is a required option.

Front Flyweight / Rear Standard

Weave This is a required option.

Braided UD

DEFAULT SETTINGS

RIMS

Matte, UD, hook, blank (no decal), 24h

Paintless, UD, blank (no decal), 28h, with access holes

Standard, paintless, hook, blank (no decal), 24h, with drain holes, without access holes

HUBS

DT Swiss 350 Straightpull Centerlock Shimano Road 11s 36t

12/100mm (F) & 12/142mm (R)

DT Swiss 350 Straightpull Centerlock Sram XD 18t

15/110mm (F) & 12/148mm (R) boost

DT Swiss 350 straightpull centerlock Shimano Road 11s 36t

12*100mm (F) & 12*142mm (R)

SPOKES & NIPPLES

Sapim CX Sprint-rear drive side / CX Ray-other sides

Sapim aluminum black external

Sapim CX Ray & Sapim aluminum black external

Sapim CX Sprint-rear drive side / CX Ray-other sides

Sapim aluminum black external

ACCESSORIES

2 valves & 1 spare 18t ratchet

2 valves & 2 adapters (centerlock to 6-bolt)

2 valves & 1 spare 18t ratchet

Note: the wheelset price includes the warehouse transfer cost ($80).

Piece Weight: g+/-

Subtotal: USD +

Lead time: typically ships in 2 days

ADD TO CART You missed some options.

We do not stock this item at the European warehouse. See what we stock currently.

You can order this product from our Global or North American warehouse.

Please fill out this form with your special requests if you want to customize it. We will get back to you in 24hrs via email.

Center Channel Hole This is a required option.

No Access Holes

DEFAULT SETTINGS

RIMS

Matte, UD, hook, blank (no decal), 24h, with drain holes

Paintless, UD, blank (no decal), 28h, with access holes

HUBS

DT Swiss 350 Straightpull Centerlock Shimano Road 11s 36t

12*100mm (F) & 12*142mm (R)

DT Swiss 350 Straightpull Centerlock Sram XD 18t

15/110mm (F) & 12/148mm (R) boost

SPOKES & NIPPLES

Sapim CX Sprint-rear drive side / CX Ray-other sides

Sapim aluminum black external

Sapim CX Ray & Sapim aluminum black external

ACCESSORIES

2 valves & 1 spare 18T ratchet

2 valves & 2 adapters (centerlock to 6-bolt)

Note: the wheelset price includes the warehouse transfer cost ($80).

Piece Weight: g+/-

Subtotal: USD + (discount price)

Lead time: typically ships in 3 business days

ADD TO CART You missed some options.

We do not stock it at the Australian shop. See what's available.

This product is available from the Global shop only.

Please fill out this form if you are looking for a custom wheelset.

We'll get back to you soon to talk about the special requests via email.

Our apologies, we do not offer this item at the Global warehouse.

Please order from other warehouses. Feel free to contact us (sales@lightbicycle.com) if you want to customize. We’ll get back to you in 24hrs.

Our apologies, we do not stock this item at the North American warehouse. Check this link to see what items we stock, or send us an email to discuss.

Our Global warehouse can make any rim model and ship worldwide. Please fill out this form with your special requests if you want custom rims/wheelset. We will get back to you via email to discuss in 24hrs.

Shopping Style

Options Features	Quick Buy	Full Custom
Options Features	Inventory	Parts in stock (Assembled upon order)	Manufactured upon order
Customization	Least customizable	100% Customizable
Lead Time	≤ 3 days	4 weeks typically
Availability	Limited models	All models
Shipping	Worldwide	Worldwide

Quick Buy (In Stock)

Full Custom (Made to Order)

DEFAULT SETTINGS

Rims

Hook, matte, UD, with drain holes

Hook, matte, UD, with access holes, with drain holes

Standard, hook, paintless, UD, 5-year warranty, with access holes, with drain holes

Front Flyweight / Rear Standard, paintless, UD, 5-year warranty, no drain holes

Paintless, UD, 5-year warranty, no drain holes

Grooved graphene surface, hook, matte, UD, with access holes, with drain holes

Grooved graphene surface, hook, matte, UD, no access holes, with drain holes

Matte UD, 32H, Centered (Staggered)

Hubs

Hope Pro 4 Fatsno J-bend 6-bolt

15/150mm (F) & 12/197mm (R) Sram XD

Straightpull centerlock black 24H

12/100mm & 12/142mm

Shimano Road 11S

DT Swiss straightpull / Bitex j-bend, centerlock, 28H

J-bend, DT Swiss 6-bolt / Bitex centerlock, 32H

15/110mm boost & 12/148mm boost Sram XD

DT Swiss straightpull / Bitex j-bend, black, 20H front / 24H rear

100mm QR & 130mm QR Shimano Road 11S

Spokes

Sapim CX Ray black

Sapim D-Light

Accessories

No decals/valves/tape

No decals/valves/tape/pads

No decals/valves

Piece Weight: g+/-

Subtotal: USD +

Lead time:

ADD TO CART

Hub Brand This is a required option.

Model	Weight	POE	Cost	Reliability	Quality	Unique Feature	Color Options	Warehouse Location	Website
Novatec	287g	27	Low	Good	Good	Inexpensive	Three	China	NOVATEC
Bitex	258g	24	Low	Good	Good	Light	Two	China	BITEX
DT 350	374g	18/36/54	Low	Better	Good	Quiet and reliable (18t option)	One	China	DT SWISS
DT 240S	317g	18/36/54	Medium	Best	Best	Quiet and reliable (18t option)	One	China/N.A.	DT SWISS
DT 240 EXP	299g	EXP 36	Medium	Best	Best	Quiet and reliable (EXP 36 )	One	China/N.A.	DT SWISS
DT 180	290g	EXP 36	High	Best	Best	Super Light, EXP 36	One	China/N.A.	DT SWISS
Chris King	326g	45	High	Best	Best	Rebuildable bearings	Nine	China	CHRIS KING
Industry Nine	327g	60	Medium	Better	Best	Loud, engagement	Eleven	China/N.A.	INDUSTRY NINE
Onyx	434g	Infinite	High	Better	Best	Silent, sprag clutch	Eighteen+ (Custom Available)	North America	ONYX
Carbon-Ti	270g	56	High	Better	Best	Extreme Light	Nine	China	Caron-Ti
ARC	332g	48	Low	Better	Good	Economic and reliable	One	China	ARC
Chosen	260g	24	Low	Better	Good	Economic and reliable	One	China	Chosen
Light Bicycle Speed-Hub V1.0/V2.0	335g	24-V1.0/ 36-V2.0	Low	Better	Good	Proprietary for Carbon Spokes Steel Bearing-V1.0/ Ceramic-V2.0	One	China	Light Bicycle

Besides hubs listed to choose online directly, you could also have more others built to the wheels on your custom order by contacting us.
See more about Light Bicycle's FULL HUB OPTIONS

* POE = Points of Engagement

* DT hubs come standard with an 18t star ratchet but are upgradeable to 36 or 54t.

* Average weight will vary slightly depending on axle and freehub combination.

DT SWISS 240 EXP

Rear Axle This is a required option.

If the size you need is not listed, please contact us and we'll reach out to you to confirm your order.

By default, skewers are only offered with QR hubs.

12 / 142mm

Freehub Body This is a required option.

1. Shimano Road 11S works with 11/12-speed cassette directly or 8/9/10-speed mountain cassette with a spacer(s) .
2. Shimano MTB 10/11S works with 8/9-speed directly or 10-speed with a spacer or 11-speed road cassette if one of the inner cogs removed.
3. Campagnolo (Campy) 11S works with 9/10/11/12-speed Campy cassette with no spacers required.
4. Sram XDR could run XDR (road) cassette inherently and is compatible to run mountain bike XD cassette with a 1.85mm spacer.
5. Shimano Micro Spline (MS) works with 12-speed MS cassette only.

Shimano Road 11S

Brake System This is a required option.

6-Bolt is the more common traditional option.
Centerlock uses a unique interface and it is also convertable to 6-bolt. If you need the conversion kit, please contact us. Our hubs are provided without rotor lockrings by default.

Center lock

Hub Color This is a required option.

Black

Ratchet This is a required option.

DT Swiss hubs use star ratchets and are available in 4 different models with varying points of engagement.

18T - Deepest teeth, slowest engagement, least amount of maintenance, suitable for powerful riders.

36T - Happy medium, doubles the engagement points.

54T - Super fast engagement, but shallow teeth require more careful re-greasing and the thru-axle should be checked every ride.

24T - Made out of hardened steel as e-bike specific.

EXP 36 - With only a single spring, making the hubs faster and lighter. More precise contact makes a longer lifespan.

EXP 54 - Upgraded from EXP 36 to gain incredibly faster engagement.

EXP 36

EXP 54

Brake System This is a required option.

Disc

Finish This is a required option.

The Precision C21 is offered with the distinctive 'Paintless' finish to align with our Pro series. And the gorgeous 'Piano Black' (perfect glossy) is also an option of mind-blowing.

Paintless

Piano Black

Weave This is a required option.

The layup schedule is predetermined for each model, but you can choose the outer layer for cosmetic appearence.

The purely hand-braided "Sunflower" weave paired with "Paintless" finish delivers a distinctively futuristic appearence.

More info about Weave >>

Sunflower

Valve Hole Type This is a required option.

Presta

Valve Cover This is a required option.

A pair of reusable valve cover stickers are provided with each Precision C21 beauty.

With Valve Cover Sticker

Rim Warranty This is a required option.

5 Years

Decal This is a required option.

The Precision C21 disc has five color options: Azure Bliss, Autumn Ginkgo, Meadow Mist, Sunset Splash, and Silvery Shadow. There is a stealth logo decal opposite the valve on both sides.

Silvery Shadow

Meadow Mist

Azure Bliss

Sunset Splash

Autumn Ginkgo

Valve Stem This is a required option.

Apply Valve Stem

Valve Adaptor This is a required option.

To work with some types of pumps, the adaptor is a must to inflate a full disc wheel.

None

Add Valve Adaptor USD +8

Send Photos for Shipping Confirmation This is a required option.

Send Photos for Shipping Confirmation could be offered at NO extra charge so that you could have your tailored products viewed/inspected before shipping and the photos shared with your friends in advance.

It takes about 1~3 business days added to the lead time subject to the orders queuing status.

If you have any special requirement on the photos, such as weight measurement, please leave a note at checkout.

Yes (1-3 days longer)

No ( I do not need photos)

Recon Pro orders start shipping in October.

- + PCS

Piece Weight: 950.00g+/-50g

Subtotal: USD 1450+

PREVIOUS NEXT

WHEELSET SPECS

RIMS

Our Pro series comes with a 5-year warranty (lifetime optional), while the non-pro with a 3-year warranty and crash replacement.

Model Precision C21 disc
Introduction >>
Material Toray T700 & T800 Premium Carbon Fiber
Size 29”/700C
Series FALCON PRO
Intended Use Road/ TT
Bead Type Hook
Tubeless Capable Yes
Inner/Outer Width 21mm/27mm
Weight (hub excluded) 745+/-50g
Profile Symmetric (0mm)
Max Cyclist Weight (on flat ground) 150kg/ 331lbs
Max Tire Pressure (with 25C) 130psi/ 8.96bar
Recommended Tire Width 25C-38C

HUBS

We keep in stock the most popular axle sizes and colors of some well-liked hub models. If you want a special order, feel free to contact us (sales@lightbicycle.com).

Model DT SWISS 240 EXP
Rear Axle Size 12 / 142mm
Driver Body Shimano Road 11S

Featuring featherlight construction, a design focused on responsive handling, and exceptional aero prowess, the Precision C21™ is the perfect upgrade for your triathlon/TT bike.

The Precision carbon disc doesn't just ensure aerodynamic advantages; it also boasts exceptional radial and lateral stiffness. It provides quick and responsive acceleration with every pedal stroke with unified UD fiber direction in the primary carbon layers.

The C21 uses a sandwich-like construction of foam and carbon that lowers wheel weight to 950g (paintless). This means it’s ~200g lighter on average than many other tubeless disc wheels and even some tubular discs on the market. The piano black finish weighs 1000g.

To ensure your race experience remains uncompromised, we conduct rigorous dynamic speed balance testing in-house on every Precision C21™ disc wheel, simulating speeds of up to 60 km/h. This means you can trust that every wheel that arrives at your doorstep is ready to perform at the highest level.

Rims

Our Pro series comes with a 5-year warranty (lifetime optional), while the non-pro with a 3-year warranty and crash replacement.

Model: Precision C21 disc
Introduction >>
Material: Toray T700 & T800 Premium Carbon Fiber
Size: 29”/700C
Series: FALCON PRO
Intended Use: Road/ TT
Bead Type: Hook
Tubeless Capable: Yes
Inner/Outer Width: 21mm/27mm
Weight (hub excluded): 745+/-50g
Profile: Symmetric (0mm)
Max Cyclist Weight (on flat ground): 150kg/ 331lbs
Max Tire Pressure (with 25C): 130psi/ 8.96bar
Recommended Tire Width: 25C-38C

Hubs

We keep in stock the most popular axle sizes and colors of some well-liked hub models. If you want a special order, feel free to contact us (sales@lightbicycle.com).

Model: DT SWISS 240 EXP
Rear Axle Size: 12 / 142mm
Driver Body: Shimano Road 11S

Please carefully inspect your package when unboxing it and contact us immediately if it is damaged or if anything is missing.

Together we can make this planet better. Join our sustainability program to reduce paper waste using digital docs.

Download user guides >>

Overview

Featuring featherlight construction, a design focused on responsive handling, and exceptional aero prowess, the Precision C21™ is the perfect upgrade for your triathlon/TT bike.

The Precision carbon disc doesn't just ensure aerodynamic advantages; it also boasts exceptional radial and lateral stiffness. It provides quick and responsive acceleration with every pedal stroke with unified UD fiber direction in the primary carbon layers.

The C21 uses a sandwich-like construction of foam and carbon that lowers wheel weight to 950g (paintless). This means it’s ~200g lighter on average than many other tubeless disc wheels and even some tubular discs on the market. The piano black finish weighs 1000g.

To ensure your race experience remains uncompromised, we conduct rigorous dynamic speed balance testing in-house on every Precision C21™ disc wheel, simulating speeds of up to 60 km/h. This means you can trust that every wheel that arrives at your doorstep is ready to perform at the highest level.
Specs
Rims

Our Pro series comes with a 5-year warranty (lifetime optional), while the non-pro with a 3-year warranty and crash replacement.

Model: Precision C21 disc
Introduction >>

Material: Toray T700 & T800 Premium Carbon Fiber

Size: 29”/700C

Series: FALCON PRO

Intended Use: Road/ TT

Bead Type: Hook

Tubeless Capable: Yes

Inner/Outer Width: 21mm/27mm

Weight (hub excluded): 745+/-50g

Profile: Symmetric (0mm)

Max Cyclist Weight (on flat ground): 150kg/ 331lbs

Max Tire Pressure (with 25C): 130psi/ 8.96bar

Recommended Tire Width: 25C-38C

Hubs

We keep in stock the most popular axle sizes and colors of some well-liked hub models. If you want a special order, feel free to contact us (sales@lightbicycle.com).

Model: DT SWISS 240 EXP

Rear Axle Size: 12 / 142mm

Driver Body: Shimano Road 11S
Warranty

For Non-Pro Series Rims: From the date of purchase, 3-year Standard Warranty.

For Pro Series Rims: From the date of purchase, 5-year Pro Warranty as standard and an upgraded optional lifetime Premium Warranty with minimum charge.

Crash Replacement: It is applicable with the same period as the warranty time range that you purchased for the rims with 10% /25% discount for Non-Pro series /Pro series.

Learn More >>
In The Box

Please carefully inspect your package when unboxing and get in touch with us immediately if the package is damaged or anything is missing.

Together we can make this planet better. Join our sustainability program to reduce paper waste with the use of digital manuals.

Download user guides >>

Gallery

precision-c21-time-trial-and-triathlon-disc-wheel-disc-brake-tubeless-capable

Light Bicycle : Rim Construction: Precision-C21 Disc Brake Hook UD Paintless Presta Hub: DT SWISS 240 EXP 12/142mm Center lock EXP 36 Shimano Road 11S

light-bicycle-precision-disc-tt-wheel-983g

Light Bicycle : Rimn: Precision C21 Disc UD Piano Black Coat Hub: DT Swiss 240 EXP 12/142mm Centerlock EXP 36 Shimano Road 11s

Light Bicycle : Wheel: Precision C21 Disc Paintless UD Carbon Hub: DT Swiss 240 EXP 12/142mm Centerlock EXP 36 Shimano Road 11s Decal: Silvery Shadow

triathlon-time-trial-bike-disc-wheel-aerodynamics

Light Bicycle : Wheel: Precision-C21™ Paintless UD Hooked Disc 700c Hub: DT Swiss 240 EXP 12/142mm Centerlock Sram XDR Weight: 946g

light-bicycle-precision-c21-aero-disc-wheel

Light Bicycle : Wheel: Precision C21™ Hook Paintless UD Presta Hub: DT Swiss 240 EXP 36T 12/142mm Centerlock Shimano Road 11s Weight: 954g

View More Reviews >>

COMMENTS

Martin 2024/02/21

Hi Do you do a rim brake version of the C21 TT Disc wheel? Or do you have plans to? Regards Martin Wilson (previous customer)

LightBicycle 2024/02/22

Hi Martin, The C21 TT wheel is not available in rim brake now. Yes, we will add a rim brake version in the future, but we haven't decided when yet. We have WRDSC02-25 TT wheel have rim brake version. Is it okay for you? We sent pictures through email for your check. Thanks, Lightbicycle

Please leave your name here.

E-mail is required for further contact.

Please enter a message.

Janne 2023/11/23

I would be interested to buy the Falcon Pro WHEEL Precision-C21 Disc, but its not offered with sram xdr hub. Is that true, i cannot buy this with XDR?

LightBicycle 2023/11/24

Hi Janne, We can make the Precision C21 full disc wheel 700C with XDR for you. But the chain would rub the disc surface when it's on the biggest cog So we recommend locking up the biggest gear since you won't need it during riding. If this is acceptable for you, I will send you the order. Thanks, Lightbicycle

Please leave your name here.

E-mail is required for further contact.

Please enter a message.

Get in touch

Feel free to leave a comment if you have any questions or suggestions on our products or other issues.

Please leave your name here.

E-mail is required for further contact.

Please enter a message.

We use cookies for a better experience. Learn more.

Customize

Your Cookie Preferences

We use cookies to improve your experience on this website. You may choose which types of cookies to allow and change your preferences at any time. Disabling cookies may impact your experience on this website. You can learn more by viewing our Cookie Policy.

Essential Cookies

Cookies required to enable basic website functionality.
Performance Cookies

Cookies used to understand how the website is being used.
Preference Cookies

Cookies that are used to enhance the functionality of the website.
Advertising Cookies

Cookies used to deliver advertising that is more relevant to your interests.

Aceept All Cookies

Save Preferences

Reject All Cookies

Save Preferences

Reject All Cookies

Accept All Cookies

Build Your Falcon Pro WHEEL Precision-C21 Disc-Rear

Overview

Specs

Warranty

In The Box

Rims

Hubs

Overview

Specs

Rims

Hubs

Warranty

In The Box

Gallery