Syncros Seatpost FL 1.0 34.9MM
Shipping Info
Shipping normally takes 3-5 business days. We don't ship on weekends or public holidays.
We offer flat-rate shipping in South Africa. We also offer local pickup from our stores around Cape Town.
International orders carry a minimum spend of R5,500, and takes 7-30 business days to arrive depending on customs.
Bike Size Guide
Choosing the right bike size can be overwhelming, click here to view the general size guide to make things a little bit easier.
Financing Options
Get the bike you want now and pay later with Yonda and Rola Bicycle Finance.
Easy application, fast approval, and tailored repayment plans.
Ride now, pay your way.
Key specs (verified + clarified)
- Material: Carbon UD (optimized layup)
- Length: 400 mm
- Diameter: 34.9 mm (also exists in 27.2 / 31.6 variants)
- Clamp: 2-bolt system
- Rail compatibility: 7x7 mm → up to ~7x10 mm (carbon rails included)
- Weight: ~210 g (31.6 version reference)
- Use: XC MTB / performance road
What makes this seatpost different
Lightweight but not fragile
- Around 200–210 g, so:
- Much lighter than alloy (~300 g)
- Still strong enough for XC riding
This is the sweet spot between weight and durability
Tuned carbon feel
- The optimized layup is key:
- Stiff enough for power transfer
- Slight compliance → reduces trail chatter
Compared to alloy (like Duncan 2.0), you’ll feel:
- Less vibration
- Slightly smoother ride over rough terrain
Practical adjustability
-
2-bolt clamp:
- Precise saddle angle setup
- Holds position securely
-
Wide rail compatibility
- Works with carbon-railed saddles without adapters
Important correction (based on your spec)
Most FL 1.0 versions:
- Typically come with ~25 mm offset, not 15 mm
So double-check:
- If yours is truly 15 mm → uncommon variant
- If it’s 25 mm → standard FL 1.0 spec
How it compares (quick reality check)
| Feature | FL 1.0 Carbon | Duncan 2.0 Alloy | Duncan SL Aero |
|---|---|---|---|
| Weight | ~210 g | ~300 g | ~195 g |
| Comfort | Medium (carbon compliance) | Firm | Medium |
| Fit | Standard round post | Standard round | ❌ Bike-specific |
| Offset | Usually 25 mm | 15 mm | 15 mm |
| Use | XC / performance | General use | Aero racing |
Pros
- Excellent weight-to-strength ratio
- Noticeably more comfortable than alloy
- Versatile (MTB + road)
- High-quality clamp system
Cons
- Carbon = needs:
- Torque wrench
- Carbon paste
- Not as tough as alloy in crashes
- Usually more setback (25 mm) → may not suit all fits
Who this is for
Great if you:
- Ride XC, marathon MTB, or fast gravel
- Want lighter + smoother ride
- Have a frame that uses 34.9 mm (modern MTB standard)
Not ideal if:
- You ride aggressive trail/enduro (risk of damage)
- You want minimal setback (0–15 mm)
Bottom line
The FL 1.0 Carbon is a serious upgrade over alloy posts—lighter, smoother, and more refined—without going full aero-specific like the SL Aero.
