Easton EC70 Seatpost - 27.2mm - 350mm
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Merlin Cycles£79.99Visit shop Easton Black Ec70 Isa Carbon Seatpost - / 27.2Mm / 350Mm
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Merlin CyclesEaston Black Ec70 Isa Carbon Seatpost - / 27.2Mm / 350Mm
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Product Information
Full details
The Easton EC70 seatpost is a premium carbon fiber component designed for performance-oriented cyclists who prioritize weight savings and vibration damping without sacrificing structural integrity. It is ideal for road and gravel riders looking to refine their cockpit fit through precise adjustments, though its specialized carbon construction requires careful installation and adherence to torque specifications to avoid damage.
All features
| Model Part Number | 125318069 |
|---|---|
| Brand | Easton |
Extended Product Information
FAQs
Does this seatpost come with a setback?
The EC70 features a standard offset design, providing the necessary setback for most traditional road bike fits.
Can I use this on a mountain bike?
While the EC70 is durable, it is optimized for road and gravel. It is not recommended for aggressive trail or downhill mountain biking.
What is the weight limit for this seatpost?
Easton designs the EC70 for standard rider weights; however, you should always consult the specific frame manufacturer's weight limits as well.
Is it compatible with oversized carbon saddle rails?
You may need to verify the specific rail diameter of your saddle, as some oversized rails require different clamp adapters.
How often should I re-apply friction paste?
It is recommended to clean and re-apply carbon friction paste every 6 months or whenever the post is removed for maintenance.
Troubleshooting
The seatpost continues to slip down into the frame while riding.
Clean the seat tube and the post thoroughly, then re-apply a fresh layer of high-quality carbon fiber friction paste to increase grip.
The saddle tilt is difficult to adjust.
Loosen both bolts of the ISA clamp assembly completely, ensure the internal cradle is clear of debris, and re-grease the bolt threads lightly.
Creaking noise coming from the saddle area.
Verify that all bolts are tightened to the manufacturer's specified torque and ensure the saddle rails are properly seated in the clamp grooves.
Pros and Cons
Pros
- Significantly lighter than aluminum equivalents
- ISA technology allows for granular saddle tilt adjustment
- Excellent vibration absorption characteristics
- Sleek aesthetics that match high-end carbon frame builds
Cons
- Requires precise torque wrench usage during installation
- More expensive than alloy seatposts
- Not intended for extreme mountain biking or high-impact downhill use
Setup, Compatibility & Care
To install the seatpost, ensure the inside of your seat tube is clean and free of debris. Always use carbon-specific friction paste to prevent the post from slipping, which helps you avoid over-tightening the seat clamp bolt. Use a calibrated torque wrench for all fasteners, as exceeding the recommended Newton-meter (Nm) rating can crush carbon fibers and compromise the post's structural integrity. Before your first ride, confirm that your bike frame accepts a 27.2mm diameter post. Periodically inspect the carbon surface for scratches or chips, and ensure the bolt hardware remains clean of grit.