Originally launched in 2016 with 11 teeth per wheel the new 12 tooth derailleur pulley wheels keep the quiet chain friendly delrin composite construction and free spinning ceramitech hybrid ceramic bearings.
Ceramic pulley review.
Order 12t ceramic pulleys at bbinfinite.
At that point the cost effective option is the 7900 derailleur especially given that it is lighter weight and smoother shifting.
Coated version for even longer lifetime.
Kogel is a small company.
Smith says as far as he knows the german company berner was the first to experiment with oversize pulleys they weren t as large as ceramicspeed s 17 17 tooth pulley system.
Review kogel ceramic pulleys shave off some time.
The pulleys of choice for me was the aluminum derailleur pulleys with ceramic bearings.
You can get them for road and cross conditions so naturally i chose road for the smoothest friction.
Review kogel ceramic pulleys.
Ceramic speed s faq says the ospw is compatible with up to a 28 tooth cassette.
Unlike some of the competitors they are not in your face or oversize but rather understated except for some color on the inside of the pulley.
Kogel ceramic oversized pulleys come in two seal options specific to road and off road use.
In addition a larger pulley wheel spins slower for a given cadence and in this case each pulley also runs on premium hybrid ceramic bearings with light contact seals and a low friction oil.
Racers will go to just about any length to save time and make their race machines more efficient.
The ceramic speed derailleur pulleys are the same price as a dura ace 7900 derailleur itself and nearly three times the cost of the 105 part one would drop them into.
Road seals for lowest friction the minimal contact seals find the balance between reducing friction losses and maintaining the guaranteed performance.
Constructed with a fiber reinforced polymer the sram 22 road bike pulley set is in molded for absolute security.
While you can nitpick weight bearing upgrades are often overlooked because they are incredibly expensive and high maintenance.
Simply choose the best seal for your riding environment from the drop down menu on the product page.
On my bike however even with the b tension screw bottomed out the upper pulley contacted the 28 in the big ring.