PLATT
✓Price
$23.99
ONIPAX Lightweight Bicycle Seatpost Clamp - CNC 6061 Aluminum Alloy Seat Post Collar with Anti-Slip Internal Lip for MTB, Road, and Commuter Bikes Precision Fit
★★★★★
$23.99
Options
2 availableSize: Standard 31.8MM
Quantity
1
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About this item
- [EASY & SECURE ALIGNMENT] To ensure a perfect fit, always install with the Internal Lip (or the Laser-Engraved Size Number) facing UPWARD. This "stop-limit" ledge rests securely on the top edge of your frame tube, preventing the clamp from sliding down while tightening. Whether your unit features our latest numbered markings or the original sleek finish, this orientation guarantees maximum clamping force and frame protection.
- [ELIMINATE SEATPOST SLIP] Precision CNC-machined from 6061 Aluminum Alloy to provide consistent, even clamping pressure. Say goodbye to seatpost "creeping" during intense MTB trail rides or long road cycling sessions.
- [ULTRA-LIGHTWEIGHT & STURDY] Optimized strength-to-weight ratio for performance-oriented riders. Our single-bolt design reduces bulk without sacrificing the rock-solid hold needed for daily commuting or competitive racing.
- [ALL-WEATHER PROTECTION] The premium anodized matte finish provides superior resistance to sweat, rain, and road salt. Designed to keep its sleek, professional look without chipping or corroding in harsh outdoor conditions.
- [PRO MEASUREMENT TIP] Designed specifically for frames with a 31.8mm/34.9mm outer diameter. Please measure your bike's frame tube (not the seatpost itself) to ensure a perfect fit. Ideal for Road, MTB, and Gravel bikes.
Product details
Customer reviews
What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
Trustpilot
★★★★★
Excellent
4.5 average rating
S
Sigalit
🇮🇱 · January 2026
★★★★★
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
V
Verified buyer
🇦🇺 · November 2025
★★★★★
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
Showing 1–2 of 10 reviews
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