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The CeramicSpeed Oversized Pulley Wheel System for Shimano Dura Ace 9200 and Ultegra 8100 with integrated stop tower for simple installation and durability.
The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world.
CeramicSpeed OSPW Systems are an industry leading product, chosen by World Champions and top athletes around the world.
This CeramicSpeed OSPW System has handbuilt CeramicSpeed Bearings installed in each pulley and comes with a 4 year warranty as standard and a lifetime warranty when choosing coated or SLT bearings.
Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur. The upper and lower oversized aluminum pulley wheels come fitted with either standard or coated CeramicSpeed Bearings.
Please note while there are visual similarities in the 9100 Series OSPW and 9200 Series OSPW, the spring tension settings, rotation stop tower placement, and mounting pin depth are slightly repositioned and as such the systems are not cross compatible. The 12spd Shimano R-7150 105 is not supported at this time.
For 8100 derailleurs, the cage uses the factory derailleur body washer. 9200 derailleurs will require the new included derailleur body washer.
In The Box
The overall power savings of the OSPW System for Shimano Dura Ace 9200 and Ultegra 8100 reach 30%-60%, or more in some cases, over a stock setup.
The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market.
Learn how to tell the Shimano 9100 and 9250/8150 OSPW Systems apart here .
Fuji, Giant, Specialized, BMC and Yuba bikes can only be picked up at our local store in Miami (5995 Sunset Drive, Miami, FL 33143). These brands do not allow any retailer to ship their bikes.
We accept Visa, Mastercard, American Express, or Discover (as well as PayPal and Apple Pay) as forms of payment. Once your order is placed, the payment method is charged immediately and we do aim on shipping most orders within 24 business hours.
Orders usually ship within one business day after being placed.
Oversize Items
Indoor bikes (i.e. Stages SB20 and Wahoo Kickr) are considered overweight items by UPS and FedEx and cannot ship with regular UPS or FedEx Ground because they have a high probability of getting damaged. These indoor bikes must ship with Kitzuma using our white glove service. The Kitzuma White Glove Service for these oversized bikes is $350.
If you wish to cancel your order after we charge your payment method, please contact us by phone at 305-661-8363 or email at [email protected] and we will refund your payment method asap provided that your order has not yet shipped.
After placing an order, you will get a confirmation email within 10 minutes. If you place an order with us and don't get a confirmation email check your "junk" mail folder - it will probably be in there; otherwise, shoot us an email at [email protected] and we'll resend an order confirmation to your email immediately.
Orders may only be canceled or changed on the same calendar day they are placed, after which they are subject to the terms of our Return Policy.
When you place an order with us, you will receive a link that will allow you to track that order. Once your order ships, you will receive another email with tracking information (if available).
We want you to be happy with your order! With some exceptions (see below), if you are not satisfied with your order you may return it within 30 days of your receipt of merchandise for a refund of the purchase price less the original shipping fees. Returns can be shipped to:
Return shipping costs are the responsibility of the customer and any shipping fees originally paid on your order are non-refundable. Here are the exceptions and clarifications:
Returns can be shipped using UPS, FedEx, or USPS (we do not accept CODs). Mack Cycle will refund shipping costs on damaged or incorrect merchandise when an item is returned that is not usable.
Refunded shipping costs do not apply to minor damages that occur during shipping (i.e. bent derailleur hangers, etc.). Minor damages on bikes like bent derailleur hangers can be easily repaired at your local bike shop. Mack Cycle will re-imburse cost of damaged derailleur hangers, etc. upon receiving email with receipt showing cost of replacement part.