Syncros FL25 mountain bike wheelset review

Hand-built, lightweight carbon hoops

Our rating 
3.5 out of 5 star rating 3.5
GBP £1,449.98 RRP | USD $2,332.00
Syncros FL25 mountain bike wheelset

Our review

Limited axle choice, but genuinely light and stiff carbon trail performance at a decent price
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Syncros’s carbon rims have been around for a while and are proving reliably tough despite being very light. As you’d hope for the price, they’re noticeably tighter-tracking than similar weight alloy wheels. 


Pickup is average but acceleration is excellent and they instantly enhance the agility of any bike you stick them in. The bearings and freehub have been fine on our long-term sets.

The 20mm internal rim diameter supports the medium-sized tyres that suit their function fine. The quick-release/15mm front hub and QR-only rear axle options will also suit most potential users. They’re not tubeless-compatible and their rim shape does make tyre fitting and removal a fight.


This article was originally published in What Mountain Bike magazine, available on Apple Newsstand and Zinio.

Product Specifications


Name FL25 Carbon wheelset (12)
Brand Syncros

Description *Weight: Front: 687g Rear: 829g Total: 1,516g * Axles: Front: QR/15 Rear: QR