Does OSPW make difference?
Does OSPW make difference?
An OSPW will certainly make more of a difference than the titanium bolt kit and carbon bidon cages you’re eyeing, and the benefits will transfer to your Zwift efforts, too. *According to Jason Smith of Ceramic Speed, formerly Friction Facts.
What is ultegra CeramicSpeed?
The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world, providing energy savings starting from 2.4 watts over standard Shimano systems. For a compatible upgrade for Ultegra 8000-GS or 8050-GS please see our Pulley Wheels for Shimano, 11s NW.
What does OSPW mean?
OSPW
Acronym | Definition |
---|---|
OSPW | Old School Pro Wrestling, Inc. (Buffalo, NY) |
OSPW | Oud Studenten Politieke Wetenschappen (Dutch: Former Student Political Science) |
Does a smaller pulley spin faster?
Pulleys of Different or Same Size If a smaller pulley turns a larger one, the larger one will turn slower, but with more power available at the shaft. If a bigger pulley turns a smaller one, the smaller one will turn much faster than the bigger one but with less power available at the shaft.
Does oversized pulley work?
But oversize pulley wheels actually offer enough of an advantage in wattage savings that it may be worth sacrificing style. The big idea here is to reduce friction in the drivetrain. Fewer watts wasted as you pedal mean more efficiency and speed. Less friction.
Do pro cyclists use OSPW?
Few other companies are offering oversized pulley wheels and its OSPW are, by and large, the pulleys of choice in the pro peloton. Even with CeramicSpeed’s system, you can run into some problems. First and foremost, the upgrade doesn’t come cheap.
How many watts is CeramicSpeed?
CeramicSpeed technology focuses on reducing friction and producing bearings with an unmatched lifetime, meaning that you get to ride faster or save energy. With CeramicSpeed products in your hubs, pulley wheels and bottom bracket, tests show that you’ll save between 6–9 watts, compared to using standard bearings.
What is the purpose of OSPW?
“There’s a couple of ways the OSPW reduces friction. In other words, it’s part of a system. The biggest factor is the larger pulley wheels. The less amount a chain has to articulate as it engages and disengages the pulley wheels, the less friction is produced.
Does the size of the pulley matter?
A larger diameter pulley wheel (aka sheave) is technically more efficient than a smaller diameter pulley. But it’s a trade off: a larger pulley has increased bulk, weight and cost. This efficiency increases with really big loads (600 lbs+) and larger mechanical advantage, such as 6:1 and 9:1.
What should I know about the CeramicSpeed OSPW?
CeramicSpeed OSPW pulley wheel system review: Oversized, overpriced 1 The data. CeramicSpeed claims the OSPW can save you between 2-4W over a stock Shimano Dura-Ace derailleur cage system (at 250W, 90rpm), and that figure progressively improves the worse your 2 Installation and setup. 3 Shifting gears. 4 Conclusion. 5 Gallery.
How big is CeramicSpeed OSPW derailleur wheel system?
The CeramicSpeed OSPW for Shimano R9100/R8000-series derailleurs features a 13T upper pulley, and an enormous 19T lower. So exactly how many watts will an OSPW save you? Tooth counts aside, not all stock derailleur pulleys are created equal — different derailleurs run different tensions, and even tooth profile matters, too.
Which is Shimano OSPW system do you use?
The OSPW System for Shimano 9100/9150 and 8000 SS/8050 SS is an industry leading product, chosen by many of the world’s leading cycling teams and professional triathlete’s. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimisation of the rear derailleur.
Is the OSPW wheel system good for racing?
The data suggest the OSPW will indeed save you watts, although that speed is anything but free. But does it also impact shifting and drivetrain reliability? Is it noisier? And if it’s so good, why don’t we see more pros racing with it?