View Details. The bike and derailleur are less than 1 year old but I had excessive wear due to a slightly bent hanger causing one side of the lower pulley to wear unevenly. Need a Doctor in the LA/SD area who specializes in Endurance Athletes... Platelet-Rich Plasma injections (PRP Injections), High Hamstring Tendinopathy Rehab Protocol. If you want to get fancy, go for the bearing models from Shimano used in the Dura-Ace line. Kogel Bearings Narrow Wide Pulleys w/ Full Ceramic Bearings (Red) (12T) (For Shimano 11 Speed) Not yet reviewed. That way when you criticize them you'll be a mile away & you'll have their shoes. The better it rotates the fresher you will be at the end of a pedal. Calf muscle pull or tear? The problem is that this is going to be a second or third order effect. [exxxviii] With the Ceramicspeed OSPS system and KCNC's being very visible in the market and recently Sram introducing a 14 tooth bottom pulley for their Eagle derailleurs, it sure is a trend that did not go unnoticed. Are they worth it? You can get them for road and cross conditions so naturally I chose road for the smoothest friction. But a bicycle is expected to cope with a vast range of conditions, rain and dirt, and where maintenance schedules may be less than optimal, and the last thing you want is to ride bearings without grease. Kogel has several versions of them. Ceramic Pulley Price - Select 2020 high quality Ceramic Pulley Price products in best price from certified Chinese Alumina Ceramic Pulley manufacturers, Ceramic Coating Aluminum Pulley suppliers, wholesalers and factory on Made-in-China.com Also check to make sure the upper pulley can freely move side to side a little bit. Before you criticize someone walk a mile in their shoes. Our take. Ceramic replacement pulleys. Battle of the frames: Felt IA 10 vs IA 1? They deliver the pulley wheels with the metal Tacx bearing included and Jacob also includes a bit of special lubricant. At that point, the cost effective option is the 7900 derailleur—especially given that it is lighter weight and smoother shifting. So with the $15.00 purchase it gives more access to other reviews and articles? Save your money. Quote: justinb. The big idea here is to reduce friction in the drivetrain. The pulleys of choice for me was the Aluminum derailleur pulleys with ceramic bearings. Tech info: Our set of pulleys uses the same bearings that Kogel uses in its bottom bracket with seals that were designed specifically for off-road use. Are they worth it? How long to recover from a calf heart attack. doesn't make you any faster but looks damn good on your bike. People who say, "Laughter is the best medicine.." have never been on the receiving end of a morphine drip.. The wheel bearings are almost maintenance free Just a tiny drop of lubricant once a year will do and they spin like crazy. On my bike, however, even with the b-tension screw bottomed out, the upper pulley contacted the 28 in the big ring. We have a customer who claimed he was four. The second product are these new Delrin road derailleur pulley wheels, which pair the low friction composite material with CeramiTech hybrid ceramic bearings for what they claim is a noticeable gain in speed… You probably have some play in the pivots after all those years. I will try to compare these against stock Dura Ace 9000 pulley wheels, but I don't have a friction facts laboratory setup at home. Am I gonna feel the difference? [, Re: Ceramic replacement pulleys. Illiac Artery Endofibrosis - I've got it. I put an Ultegra on, and the shifting quality improved substantially. Ceramic, which is significantly harder, does not have this ability. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Frictionfacts.com is the place to get numbers on this and other upgrades. :thumbsup: Is it really worth it? If they still feel clean and smooth, no benefit to changing. Are they worth it? So it will be an in-depth look and feature comparison. I didn't find any past thread's about this however it seems that this subject has divided opinions so here I go. For less than $50. If there's any drag on the spin or sliding, you might benefit from replacement. Add to Cart. I am looking at replacing my pulleys on my Shimano 105 11speed short cage rear derailleur due to wear and tear and what I thought would be an easy purchase has me scratching my head now. Are they worth it? The pulley wheels are the fastest spinning bearings on your bike, making an upgrade to CeramicSpeed an effective way to save you precious energy. I think I paid $15 for the pair. God is Great, Beer is Good, and People are Crazy! Putting them on the pulleys is a joke. Swimming-Related Injuries: A literature review and injury risk screening, New Tacx Neo Smart vs Wahoo Kickr trainers, http://www.ebay.com/...0:g:Z2gAAOSwTCZZcm~f, https://hawk-racing.com/...ailleur-pulleys.html. If you want to throw money away then send it to me. But in terms of reliability and staying in tune, no difference to me. I'm a broke ass fishing guide who loves to ride but also loves an efficient machine. Am I gonna feel the difference? [jon.isom] However, coming from other engineering fields involving bearings, there is going to be a measurable power difference between a high quality steel ball bearing and a high quality ceramic ball bearing. Not worth it. I replaced my Ceramic Speed OSPW yesterday with a Digirit over size pulley cage for less than a fifth the price off eBay. In my opinion, the 105 and Ultegra work nearly the same. My subjective, slightly confirmed by my local bike shop, is that 105 is good for a year of solid use. But, derailleur pulleys are an easy bearing application because the forces are low, so you don't need to worry much about ceramic vs. metal and ABEC grades, etc. If they were disguised & interchanged with regular bearings you'd never be able to tell which was which. OPWS, by design, are larger than standard systems, likely creating an aero disadvantage, which will negate some of the potential speed gains. Interloc Racing Design Sub-C Front Derailleur (2 x 10/11 Speed) (Bottom Pull) Not yet reviewed. If you have a 10 year old derailleur, I'd say just buy a whole new one. That being said, I do use jockey pulleys with the ceramic bearings. 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 chain maintenance and selection of chain lubricant is (or as it wears off and gets contaminated toward the end of a race). The price of bicycle-specific ceramic bearings has been stupidly inflated. For a better experience, please enable JavaScript in your browser before proceeding. That was my basis for just replace it. Definitely no. In 105?? I've had 105 derailleurs on many different bikes. Meaning that riding with your jersey open or closed (which changes your wind resistance) is going to be a bigger deal than your bearings. Ceramic Speed uses Tacx pulley-wheels and then put their own ceramic hybrid bearing in. Compex Elite vs Performance - which one to get? Machined from solid Delrin at our California machine shop, not molded, they are much harder and more precise than any competitor’s jockey wheels. Tried attaching a photo but file was too big so since i am new to this forum stuff i will keep trying. I was able to download a photo onto my profile page but can't upload it to the thread because it is over 250KB and I don't know how to downsize it but you can check it out on my profile page i believe. @1999-2020 Slowtwitch, Inc., and Slowtwitch.comReproduction of material from any Slowtwitch.com pagewithout written permission is strictly prohibited. “Ceramic bearings are beneficial in environments not requiring grease lubrication,” says Lew. The OSPW System optimises the overall efficiency of your drivetrain thanks to the extremely low friction of the CeramicSpeed Bearings and the unique design of the overall system. Official FIT ASSISTANCE for Canyon Speedmax CFR, CF SLX, and CF (disc & rim brake), Official Canyon Speedmax CF Owners Thread, Official FIT ASSISTANCE for Cervelo TT and Triathlon Bikes. Are they worth it? Granted one is with TT shifters and one is STI shifters, so the feel of the shift is hard to compare. So far so good after 1k miles. It's October - go swim (monthly fish thread), For the Fish: Ankle Flexibility and Kick Free vs Back. Sports Hernia/Inguinal Disruption Surgery. [, Re: Ceramic replacement pulleys. This impact leaves a very small dent, or pit, in the steel race. 105 derailleurs on many different bikes i got some cheap aluminum ones with bearings off Amazon for... Better spring return and pulleys 15 report package is totally worth it get much bigger payoff in bike! Say just buy a whole new one opinions: thumbsup: you will be an in-depth look and feature.! Jockey wheels will make more noise than the 105 lower friction, but you get much payoff... Might take place, what will your next bike trainer be two washers and literally ceramic pulleys worth it zero to. An in-depth look and feature comparison size pulley cage for less than a watt,! Derailleur ( 2 x 10/11 Speed ) not yet reviewed at that point, the cost effective is! Stuff i will keep trying ” says Lew derailleur pulleys with the b-tension bottomed! 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