XLC SP-O04 Raceby seatpost, Black

XLC SP-O04 Raceby seatpost

53.99 €

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16 Reviews

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Features of XLC SP-O04 Raceby

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Specifications XLC SP-O04 Raceby

Features of XLC SP-O04 Raceby

Color Black

Color

Black

Travel Rigid

Travel

Rigid

Recommended Use MTB Cycling

Recommended Use

MTB Cycling

Road Cycling

Materials Carbon

Materials

Carbon

Seatposts Type Rigid

Seatposts Type

Rigid

Product description of XLC SP-O04 Raceby seatpost

Description summary

Elevate your ride with the XLC SP-O04 Raceby Carbon Seatpost, the ultimate lightweight upgrade for performance road and MTB cyclists. Its full carbon construction delivers an incredible blend of low weight for faster climbs, stiffness for maximum power transfer, and vibration-damping comfort to reduce fatigue. The zero-offset design promotes an aggressive, powerful riding position, while the secure 2-bolt clamp allows for precise micro-adjustment to dial in your perfect fit. Shave critical grams and unlock your peak performance on any terrain

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XLC SP-O04 Raceby Carbon Seatpost – Ultimate Lightweight Upgrade for Road and MTB Cycling

Elevate your ride and shave critical grams with the XLC SP-O04 Raceby Carbon Seatpost. Engineered for the discerning cyclist who demands uncompromising performance, this premium seatpost is the perfect upgrade for both competitive Road Cycling and aggressive MTB Cycling. Its full carbon construction delivers an incredible combination of low weight, stiffness, and comfort, allowing you to push your limits further and faster on any terrain. This is not just a component; it´s a direct investment in your performance and riding enjoyment.

Unlock Your Peak Performance

The primary benefit of the XLC SP-O04 Raceby lies in its advanced carbon fiber construction. This material choice results in a remarkably lightweight yet incredibly strong and rigid seatpost. The reduction in weight is immediately noticeable on climbs and during accelerations, giving you a distinct competitive edge. Furthermore, the natural vibration-damping properties of carbon fiber work to absorb road and trail buzz, significantly reducing rider fatigue on long-distance rides and allowing you to stay fresher for longer.

Precision, Power, and Control

Achieving the perfect bike fit is crucial for both comfort and power output. The SP-O04 Raceby features a robust 2-bolt clamp system renowned for its security and fine-tuning capabilities. This design allows for precise micro-adjustment of the saddle´s tilt and fore-aft position, ensuring you can dial in your optimal riding posture with confidence. The 0mm offset design promotes a forward, aggressive riding position, ideal for racers and performance-oriented riders looking to maximize power transfer and aerodynamics. Once set, the secure clamp ensures your saddle stays exactly where you want it, even on the roughest trails or during all-out sprints.

Key Features:

* Full Carbon Fiber Tube: Delivers an exceptional stiffness-to-weight ratio for maximum power transfer and minimal weight penalty.
* Zero Offset Design: Facilitates a forward, powerful riding position ideal for racing and performance-focused cycling.
* Secure 2-Bolt Saddle Clamp: Provides a rock-solid hold on your saddle rails and allows for precise, independent angle and position adjustments.
* Effortless Micro-Adjustment: Easily fine-tune your saddle tilt to achieve the perfect ergonomic fit for enhanced comfort and efficiency.
* Versatile and Certified: Rigorously tested and certified to ISO 4210-2 standards, guaranteeing its safety and durability for both demanding Road Cycling and challenging MTB Cycling disciplines.
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Technical Specifications:

* Product: XLC SP-O04 Raceby Seatpost
* Material: High-Modulus Carbon Tube
* Discipline: MTB Cycling, Road Cycling
* Type: Rigid
* Material Type: Carbon
* Offset: 0mm
* Clamp System: 2-Bolt with Micro-Adjustment
* Weight: Approximately 264g (for the Ø30.9mm / 400mm version)
* Diameter: 31.6mm / Length: 350mm
* Diameter: 30.9mm / Length: 400mm
* Safety Standard: Certified to ISO 4210-2 Road/MTB

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What our customers are saying about XLC SP-O04 Raceby seatpost

This carbon seatpost offers excellent quality and value. It is a well-built, strong, and durable upgrade with thick carbon walls and a great finish. The reliable 2-bolt adjustment is easy to use for precise saddle positioning. This lightweight post provides noticeable flex for added comfort on road or mountain bikes, easily supporting riders up to 120 kg. A quality, high-performance choice available in popular sizes like 27.2mm

Xlc sp-o04

2025/12/21

Lukasz

I recommend this product. It replaced the original seatpost in the Orbea Alma H20 hardtrial - less weight, better vibration absorption. Only advantages.

Excellent

2025/12/03

carlos

It's not the lightest carbon F-post out there, but it's very well made. I'll buy it again.

Everything is ok

2025/10/06

Gab

Nothing to say, sober look, good weight, good comfort, and fits well

Excellent product

2025/09/06

FT54

The price/quality ratio is excellent. I just wish the carbon was a darker black, but that's a detail. Weighs 234g in 27.2 / 350mm

Nice finish

2025/06/14

Klaus

I bought the ø27.2x350 and was pleasantly surprised of material thickness, more than my stock Canyon post. Max load for this post is 120 kg

Very successful product

2025/04/28

marcel

Great value for money

Excellent product

2025/02/11

ANDRE

Yesterday I installed a seatpost on a new bike. I really like the quality and thickness of the carbon walls. Before that, there was a Chinese seatpost one and it cracked down on the very first day

Price performance top

2024/06/08

Dirk

Very nice seat post, well made and easy to assemble.

Top

2024/05/27

Paulo

Very Nice weight and quality for the price

Sztyca xlc

2024/03/01

Paweł

Bardzo dobra sztyca. Polecam

Great value for money

2023/08/16

Ivo

Seatpost very well built, great finish is very resistant

Good and strong seatpost

2023/06/02

tinyakoff

Nice, after aluminium i love this seatpost. It little suspension and holds my 90 kg.

Great seatpost

2023/01/07

Maria

Great carbon seatpost with excellent longitudinal 2-bolt adjustment. Quality-price 5/5

Excellent

2023/01/03

Ivan

Excellent quality / price, fast transport

Excellent value for money

2022/09/20

Сергей

The carbon seatpost I purchased is exactly as described: 350 x 27.2mm. Excellent value for money. Suitable for road and mountain bikes. In operation - more than 4000 km.

Xlc sp-o04 raceby carbon

2020/11/23

Vos

Excellent carbon seatpost. Weight even lower at 251 grams for the 27.2 / 400 mm version.

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Compatibility

2025/03/02

Victor Ruiz

Is it compatible with the Shimano Di2 battery?

Answer of Fulvio

It is compatible but needs an adapter to accommodate the Di2 battery

Screws

2024/10/02

MIGUEL ANGEL

Hello. I need to buy the saddle clamp bolts for this seat post. If you have them, or any other compatible model, can you please let me know the reference. Thanks.

Answer of ANDRE LUIZ

Hello! You don´t need to buy it, the seat post already comes with the screws, Best regards

Endurance/Reliability

2024/06/17

ANDRE LUIZ

Hello! How is the finish of this spike, is it resistant and durable? Is this Brand trustworthy?

Answer of Corrado

Matte finish, very valid and aesthetically beautiful product. Never had any problems, I bought it again after changing the frame from 27.2 to 31.8. Advised.

Answer of Tomas

Very good. Good price. Perfect quality

Answer of Konstantin

This is a copy of Ritchey. reliable tube and aluminum saddle fasteners

Answer of Julien

I´ve had it for 6 months! Gravel, flush, easy to install and no worries.

Min. insertion / max. weight

2024/02/24

Hi, how long is the min. insertion part of the seatpost? Is there some weight limit for the rider? Thanks

Answer of Daniele

The Min is 4N, the insertion part is based on the expected height and in any case there are lines where the first one at the bottom is the minimum expected to be inserted. The weight limit does not exceed 100kg because beyond that you have to be careful, the material is robust and the product is excellent but it is always better not to overdo it, it is still carbon

Answer of Dzmitry

Hello, minimum insertion 12 cm, 4 category

Answer of Konstantin

Weight 250-260g, lock offset 0, rider weight up to 100kg

Answer of Pavel

Minium insertion part has length aprox.10 cm. My weight is 87kg and it´s ok. My products is 350 mm length / 27.2. After two years the color is changed, more brighter, maybe from sun.

Seat rails

2024/01/18

Daniela

Does it support 7x10 seat rails? Thank you

Answer of Konstantin

Yes, the saddle clamp will work with any rails, carbon or steel without restrictions

Compatibility

2023/05/21

Alejandro

Hello, I would like to know if it is compatible with Di Shimano battery Thank you

Answer of Jack

No, that won´t work

Diameter

2022/09/16

Gontzal

Hello, The diameter of the size does not match the description. It is 30.9x350??

Answer of Carlos Javier

No, the measurement is 350 / 31.6

Answer of Sergey

The seatpost I purchased from a well-known manufacturer is fully consistent with the description: 350 X 31.6 mm. Excellent value for money. Suitable for road and mountain bikes.

Answer of Jorge

Good, probably there is no stock of 30.9. In the description it puts the weight for 30.9x400, but from what I see the only diameter available is 31.6. I hope I have helped.

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XLC SP-O04 Raceby seatpost

Features of XLC SP-O04 Raceby

XLC - Bike parts - Seatposts

Specifications XLC SP-O04 Raceby

Features of XLC SP-O04 Raceby

Color Black

Travel Rigid

Recommended Use MTB Cycling

Road Cycling

Materials Carbon

Seatposts Type Rigid

Product description of XLC SP-O04 Raceby seatpost

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What our customers are saying about XLC SP-O04 Raceby seatpost