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CeramicSpeed OSPW RS 3D Titanium Shimano 9250/8150
Sale price
$2,100.00
Regular price
$2,100.00
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SKU: 113684 Option: Oil Slick
Pickup available at RA Cycles Brooklyn
Pickup available at RA Cycles Walnut Creek
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Stock Availability by Location
RA Cycles Brooklyn In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
105 5th Ave, Brooklyn, NY 11217718-636-5242
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
RA Cycles Walnut Creek In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
* Available for in-store pickup in 2-4 hours
Distribution Center - East In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
Distribution Center - Central In stockLow stock (1 left)Low stock (2 left)— Out of stock— Not immediately available
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CeramicSpeed OSPW RS 3D Titanium Shimano 9250/8150
$2,100.00
CeramicSpeed OSPW RS 3D Titanium Shimano 9250/8150 Info
The CeramicSpeed OSPW RS 3D Titanium Shimano 9250/8150 replaces the stock pulley cage on Shimano's latest Dura-Ace and Ultegra Di2 derailleurs with a 3D-printed hollow titanium body, an unusual manufacturing approach that lets CeramicSpeed build a stronger cage at a lower weight than a machined or cast part would allow. At a claimed 86 grams, it's remarkably light for a full oversized pulley system, and the reinforced cage design is meant to hold up to the loads that come with hard, repeated shifting rather than just looking the part.
Each pulley runs on CeramicSpeed's handbuilt, coated ceramic bearings, and the coating adds corrosion resistance on top of the low-friction spin ceramic bearings are known for. CeramicSpeed states the system reduces friction by 35-40% compared to a stock pulley setup — a claim from their own testing rather than an independently verified figure, though the combination of oversized pulley wheels and ceramic bearings is a well-established way to cut chain friction versus a stock derailleur cage. It's built specifically for the Shimano Dura-Ace RD-9250 and Ultegra RD-8150 derailleurs, so fitment is a direct swap rather than requiring an adapter.
This is a component for riders who've already dialed in the rest of their drivetrain and are looking for the next real efficiency gain, not a first upgrade for a bike that still has stock wheels and a training groupset. At $1,995 to $2,101 depending on finish, it's priced for serious racers and gran fondo riders chasing marginal gains rather than casual upgraders, and it's backed by a lifetime warranty, which matters given the investment. It's available in Oil Slick and Silver finishes, with Oil Slick typically the quicker option to get in hand.
The RA Perspective
This is one of the more expensive single components we sell, and we're upfront with customers about that: it's a marginal-gains upgrade, not something that transforms how a bike rides. If your drivetrain is already clean and well-maintained, the friction reduction is real but subtle — the kind of thing that shows up over a long race or a season of racing, not something you feel in the first pedal stroke.
The build quality is what stands out most in hand. The 3D-printed titanium cage feels noticeably more refined than earlier CeramicSpeed OSPW generations, and the reinforced design addresses a legitimate complaint some riders had with older cages flexing under hard shifts. The coated ceramic bearings spin smoothly right out of the box and have held up well for the customers we've sold this to.
The honest tradeoff is price. At two grand for a pulley system, this only makes sense once everything else on the bike — wheels, tires, position — is already optimized. We'd steer someone with a mid-pack drivetrain toward cheaper upgrades first.
For racers and serious enthusiasts who've already covered the bigger performance gains and are looking for what's left, this is a well-built way to find it.
PRICE MATCH GUARANTEE
We will price match against advertised or quoted prices from other authorized dealers of the product!