CeramicSpeed OSPW Review: Is This the Ultimate Drivetrain Upgrade?
If you’ve been riding for a while, chances are you’ve heard about CeramicSpeed’s OSPW system – those oversized pulley wheels that look as fast as they feel. But what exactly is it, and is it worth upgrading your bike with one?
Let’s break it down.
1. What is the OSPW system?
OSPW stands for Oversized Pulley Wheel System. It's a rear derailleur upgrade that replaces the small stock pulley wheels with larger, low-friction ceramic ones.
Larger pulley wheels = less chain articulation = less resistance.
In short, your drivetrain runs more smoothly and efficiently.
2. Friction savings: myth or real?
Real — and proven.
CeramicSpeed claims that their OSPW saves up to 2.4 watts compared to standard pulleys. That might not sound like much, but in a race or time trial, every watt counts.
And if you're a cyclist who values performance and drivetrain longevity, even small gains matter over time.
3. Performance data from CeramicSpeed
Here’s what their testing shows:
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Up to 2.4 watts saved in drivetrain friction
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Ceramic bearings = 5–10x longer lifespan than standard steel
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Combined with a waxed chain, the gains multiply
At Approved Cycling, we’ve seen the OSPW make real-world differences — smoother shifting, better chain retention, and noticeable efficiency during longer rides.
4. Let’s be honest — it looks amazing
Beyond performance, there’s no denying it: the OSPW just looks cool.
It’s one of those upgrades that instantly signals you know your gear.
Cyclists love the aggressive, oversized look — it makes your rear end stand out (in the best way possible) and finishes off a premium build.
It's a conversation starter and a style statement.
5. Who it’s for: racers, triathletes, enthusiasts
The CeramicSpeed OSPW is ideal if:
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You race or train seriously and want every marginal gain
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You’re doing time trials or long endurance rides
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You’re building a dream bike and want top-shelf components
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You care about drivetrain performance and longevity
It’s not a “must-have” for beginners, but for anyone riding 3–5x a week or doing events — it’s a worthwhile upgrade.
6. Available in our shop – benefits of professional install
We stock the CeramicSpeed OSPW at Approved Cycling and offer professional installation in-house.
That means:
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Correct tensioning for your derailleur
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Precision install = no shifting issues
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Free drivetrain check included
📍 Visit us in-store at Ziherlova 10 in Ljubljana.
Have questions? Come see it in person — we’ll show you the difference!
Ready to upgrade your ride?
Come by Approved Cycling and see why the pros trust CeramicSpeed.
Contact us @ hello@approvedcycling.com for more info.
