Enduro Bearings XD15 Direct Line Pulley Wheels for SRAM 12sp SRAM 12sp Road & Gravel rear mechs

BKCJ-0402 - 12 tooth, XD-15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 12 speed SRAM Road and Gravel Derailleurs (4mm bolt upper/5mm bolt lower)

The ultimate upgrade pulley. Guaranteed to last forever against corrosion

Precision machined Delrin® Derailleur pulleys featuring XD-15 Ceramic-Hybrid, radial bearings for enhanced shifting performance and longevity. Designed and manufactured for performance, these pulleys feature CN (tight clearance) bearings in the upper pulley to maximize shifting accuracy and C4 (loose clearance) bearings in the lower pulley to allow for chain-line movement.

500 AF Delrin® pulley material features a high mechanical tensile strength and rigidity, natural lubricity, high resistance to moisture, caustic chemicals and UV makes these pulleys highly durable, rigid and very smooth. Delrin also machines very cleanly and precisely. The in therent lubricative qualities of this Teflon® infused material greatly reduces friction when it interfaces with the bicycle chain. When compared to other pulley materials, 500 AF Delrin® with Teflon®, offers significantly less drag than pulleys machined from aluminum or titanium.

An Enduro Bearings exclusive, our XD-15 Ceramic-Hybrid bearings combine corrosion-proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup. The deep-groove design raceways allow for maximum sized Grade 3 Silicon Nitride ceramic balls for for increased contact area and improved performance and longevity. 90% fill Kluber NBU52 grease only runs better and smoother with time and is highly resistant to being washed out. It is engineered to stick to the balls and continually be pulled back into the ball path where it is needed.

This 12 tooth pulley set with 4mm upper & 5mm lower bolt-holes is designed as direct fit upgrade for SRAM 12 speed road and gravel derailleurs .

Enduro Derailleur Pulleys are available in a number of configurations and performance levels, starting with Ceramic-Hybrid, Black-Oxide treated Zero Ceramic as a step up, and XD-15 Ceramic-Hybrid at the top of the line. All are proudly precision manufactured in the USA.

When will my order arrive? (excluding Bikes)

Just above the 'Add to basket' button you will see the item availability. We have 3 different availability stock flags on our website which will determine how long an order will take to arrive.

In Stock in Kircaldy Shop
This means that we physically have the item in the shop. If you choose one of our Priority Delivery options then you can expect your order within 1 to 3 working days. If you choose a Non Priority Delivery service you can expect your order within 3 to 5 working days.

In Stock at Supplier
Our stock system is linked in with our suppliers stock system which allows us to offer a wider product range, but does increase the delivery times a little. If you choose one of our Priority Delivery options you can expect the order within 3 to 5 working days. If you choose Non Priority Delivery you can expect the order within 5 to 10 working days, although this is completely determined by the speed of the item coming from our supplier.

Out of Stock
This means that both ourselves and our suppliers are out of stock of the item. Although the website won't allow you to order something with this stock flag you are more than welcome to contact us with the Product ID. We may be able to back order it for you, or at least see if we can provide an estimated restocking date.

If you need an order quicker than this please email us with the product ID to find out if this is possible to avoid disappointment.

What about bikes?

We aim to dispatch all bikes within 5 working days, but during busy periods we may have a few builds in the queue and could take a bit longer. If this is a concern or you need the bike before a certain date then please email us to make sure we can achieve this and avoid any disappointment. We will email you the day of dispatch and you can expect the bike the following day. If you provide a mobile number on your order the courier will also send you a text message 1 hour before delivery so you know exactly what time to expect it.

Who do you use to send orders?

We use Royal Mail for most of your orders unless they are bulky or valuable, in which case we will send the order using DPD. You can also specify DPD at checkout if you prefer to have your item delivered with an hours notice in the form of email or text from the courier.