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. Pulleys seem to be the next choice for watts savings after bottom brackets. Fitting ceramic bearings on your bike may be a bit like fitting a Formula One gearbox in your Ford Fiesta and expecting it to perform as well after 100,000 miles. Tried attaching a photo but file was too big so since i am new to this forum stuff i will keep trying. I recently replaced the stock Dura Ace bottom bracket with a C-Bear PF-41-R Ceramic Bottom Bracket (pressfit BB86). Ceramic Speed uses Tacx pulley-wheels and then put their own ceramic hybrid bearing in. 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. Hello there i was wondering if whether an under drive pulley upgrade is worth it. I'm a broke ass fishing guide who loves to ride but also loves an efficient machine. They deliver the pulley wheels with the metal Tacx bearing included and Jacob also includes a bit of special lubricant. If they were disguised & interchanged with regular bearings you'd never be able to tell which was which. Add to Cart. Preventing Iliac Artery Endofibrosis - Cycling Overuse Injuries. I kind of wish it were legal to staple people in the face. Ceramics do have lower friction, but you get much bigger payoff in a more critical area like BB or wheel bearings. On my bike, however, even with the b-tension screw bottomed out, the upper pulley contacted the 28 in the big ring. For a better experience, please enable JavaScript in your browser before proceeding. If you have a 10 year old derailleur, I'd say just buy a whole new one. The pulleys of choice for me was the Aluminum derailleur pulleys with ceramic bearings. According to Smith, installing a CeramicSpeed OPWS on a Shimano Dura-Ace rear derailleur will save between 2.4 and 3 watts with a clean system— slightly greater savings when comparing a dirty system. Ceramic replacement pulleys. I do not notice any difference at all. At that point, the cost effective option is the 7900 derailleur—especially given that it is lighter weight and smoother shifting. So go for it. Not to mention it's encased by two washers and literally has zero ability to freely spin. [, Re: Ceramic replacement pulleys. You'll get new pulleys and crisper shifting for not a whole lot more than just the pulleys. Are they worth it? 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. Are they worth it? [jeremyb] Slowtwitch approved IT Band rehab? In 105?? CeramicSpeed ceramic Pulley Wheels offers smooth and precise shifting and less drag. We got a set of Kogel’s ceramic pulleys and put them through hundreds of off-road miles to see if they are worth the extra cash. The problem is that this is going to be a second or third order effect. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, troubleshooting, maintenance, and more! 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 The pulley wheels are the fastest spinning bearings on your bike, making an upgrade to CeramicSpeed an effective way to save you precious energy. Ceramic Speed is worth the money, but if on a budget, F1 Ceramic is similar (same grade, coated options) for much less. [. So far so good after 1k miles. Ok Fishes, here is the interview we were all waiting for!! Save your money. Calf muscle pull or tear? Well I do like a stealth machine so that helps the decision factor. If you want to know more on the scientific facts of the matter take a look at the video below! [blueapplepaste] Any Canadians with/had a hip labral tear here? Definitely no. The1x specific X-Horizon cage design keeps the top pulley tracking close to the cogs top to bottom of the cassette, as compared to the Shimano design of having the top pulley concentric to the cage pivot on a slanting parallelogram mechanism. Am I gonna feel the difference? All stock Eagle pulleys are 12t-top/14t-lower with cartridge bearings (and ceramic for XX1), so they’re already fairly oversized and smooth running. Our pulley wheels are compatible with SRAM, Shimano and Campagnolo. You probably have some play in the pivots after all those years. Thank you guys for all the opinions:thumbsup: You will see no improvement over the standard replacements. Their $15 report package is totally worth it. Before you criticize someone walk a mile in their shoes. Are bicycle-specific ceramic bearings worth it: probably not. [, Re: Ceramic replacement pulleys. 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. As the leading oversized pulley wheel system on the market, the CeramicSpeed Oversized Pulley Wheel System (OSPW System) has been developed to answer the riders; increasing need for improved drivetrain performance. [, Re: Ceramic replacement pulleys. Are bicycle-specific ceramic bearings worth it: probably not. [lyrrad] +1 to everyone else's comments about aftermarket pulleys. 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. [, Re: Ceramic replacement pulleys. For a good safe bet replacement, OEM are fine. That really can save you more than a watt. 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! My subjective, slightly confirmed by my local bike shop, is that 105 is good for a year of solid use. I put an Ultegra on, and the shifting quality improved substantially. let me know what do you think about it. Are they worth it? 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. 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. You'll definitely get a small improvement by using two ball bearing pulleys. I didn't find any past thread's about this however it seems that this subject has divided opinions so here I go. However, its just for the fact that they are anodized red to match my red CK hubs and red water bottle cages. [, Re: Ceramic replacement pulleys. Frictionfacts.com is the place to get numbers on this and other upgrades. @1999-2020 Slowtwitch, Inc., and Slowtwitch.comReproduction of material from any Slowtwitch.com pagewithout written permission is strictly prohibited. If they still feel clean and smooth, no benefit to changing. 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. No. For less than $50. Are they worth it? i looked on the site initially and got turned off with the $7.95 purchase price for the report just on pulleys. Is swimming safe? I have DA and Ultegra. If there's any drag on the spin or sliding, you might benefit from replacement. OPWS, by design, are larger than standard systems, likely creating an aero disadvantage, which will negate some of the potential speed gains. Putting them on the pulleys is a joke. red aluminum jockey wheels will make more noise than the standard rubber/plastic ones. Ceramic Pulleys Factory - Select 2020 high quality Ceramic Pulleys Factory products in best price from certified Chinese Rope Pulleys manufacturers, Ceramic Wire Guide Pulleys suppliers, wholesalers and factory on Made-in-China.com 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. In my opinion, the 105 and Ultegra work nearly the same. Are they worth it? Am I gonna feel the difference? Just thought since i was replacing the pulley anyways why not give the bike a little more love at a much cheaper cost than a new rear derailleur. Ceramic Speed’s FAQ says the OSPW is compatible with up to a 28-tooth cassette. I got some cheap aluminum ones with bearings off Amazon. Not recovering IT Band Friction Syndrome!! We have a customer who claimed he was four. That being said, I do use jockey pulleys with the ceramic bearings. [zedzded] Kinda strange whatever the bearing is made of. Used them on an ultegra derailleur. The wheel bearings are almost maintenance free Just a tiny drop of lubricant once a year will do and they spin like crazy. You can get them for road and cross conditions so naturally I chose road for the smoothest friction. 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. I replaced my 105 RD after about a year of use and ~5K miles. If there is one thing we see a lot in comments sections about ceramic bearings, it is people claiming ceramic bearings do not offer benefits and are not worth their cost. For the simplicity of this article, we only look at hybrid ceramic bearings with steel races. Are they worth it? The last 24k is downhill, and he descends like a drunken cat. That was my basis for just replace it. [exxxviii] As a previous poster said, if your bearings need replacing anyway, may as well go ceramic. Am I gonna experience more speed like they advertised? They’re amazing, and worth checking out as a first step. Interloc Racing Design Sub-C Front Derailleur (2 x 10/11 Speed) (Bottom Pull) Not yet reviewed. Ceramic, which is significantly harder, does not have this ability. I been looking at this pulley's with ceramic bearings for my Shimano Ultegra SL RD, I found a great deal on e-bay on a well known company that used to advertised themselves here. These are machined smooth for easy cleaning and highly recommended for … Sports Hernia/Inguinal Disruption Surgery. This article is a short review of the CEMA Bearing Full Ceramic pulley wheels. Ceramic Hybrid (CH) ABEC-5 Pulleys. anything that rotates should be the best quallity possible..but only if you can afford it. I've had 105 derailleurs on many different bikes. everything? [, Re: Ceramic replacement pulleys. The price of bicycle-specific ceramic bearings has been stupidly inflated. 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). Are they worth it? 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. Re: Ceramic replacement pulleys. 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. I wasted my money on a ceramic bottom bracket and will go back to a standandard Dura Ace BB when my ceramic one fails. Are they worth it? $19.99. Illiac Artery Endofibrosis - I've got it. God is Great, Beer is Good, and People are Crazy! It's October - go swim (monthly fish thread), For the Fish: Ankle Flexibility and Kick Free vs Back. 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… But, full ceramic in the jockey wheels? [shoki] ----------------------------------------------------------------------------------------------------------------------, Oh come on, John. Coated version for even longer lifetime. HP gains are not of my concern with this mod but if it makes the engine more efficient and run better than why not. The big idea here is to reduce friction in the drivetrain. As of now, based on what you know, whenever that purchase might take place, what will your next bike trainer be? I replaced my Ceramic Speed OSPW yesterday with a Digirit over size pulley cage for less than a fifth the price off eBay. People who say, "Laughter is the best medicine.." have never been on the receiving end of a morphine drip.. 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. Quote: justinb. If you want to throw money away then send it to me. [Montanaman42] Anyone who believes there are no stupid questions never worked in a bike shop. [, Re: Ceramic replacement pulleys. I think I paid $15 for the pair. So with the $15.00 purchase it gives more access to other reviews and articles? an expensive solution to a nonexistent problem. They are widely used in bulk material handling applications, reliable performance and longer service life. The Dura-Ace seems to have a better spring return and pulleys. Machined from solid Delrin at our California machine shop, not molded, they are much harder and more precise than any competitor’s jockey wheels. [jaretj] 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. [jon.isom] In a pulley there are ZERO benefits even on a MTB. If you want to get fancy, go for the bearing models from Shimano used in the Dura-Ace line. Are they worth it? “Ceramic bearings are beneficial in environments not requiring grease lubrication,” says Lew. In reality, with an optimised or even well-maintained chain in use, that figure is likely closer to just 1-2W – but still, watts are watt… This Ceramic Pulley Lagging is fabricated using high grade raw material and using latest technology. As a bonus, CeramicSpeed's testing shows that these pulleys last anywhere from 3-5 times longer than stock. Compex Elite vs Performance - which one to get? Sure as hell just looked and felt like a plastic bushing. CeramicSpeed Titanium Pulley WheelsUpgrade your Shimano rear derailleur with CeramicSpeed Titanium Pulley Wheels for reduced friction and extended lifetime. Now, if you have a regular Shimano 105 rear derailleur and you want to replace the bushing pulley wheels with a quality steel bearing pulley wheel, that is WELL worth the money. These are essential to improve conveyor belt performance by … The only load those pullies have on them is induced by the tension spring. [, Re: Ceramic replacement pulleys. Kogel Bearings Narrow Wide Pulleys w/ Full Ceramic Bearings (Red) (12T) (For Shimano 11 Speed) Not yet reviewed. I can do that. Our take. But in terms of reliability and staying in tune, no difference to me. Champagne taste on creek water budget. JavaScript is disabled. The ceramic speed cage shattered on one side when I went over a bump on the road with slack and the chain bouncing the tolerance is enough for it to jam between the pulley wheel and the cage breaking half the cage off. Recently we have been receiving an increasing amount of questions about oversize pulley wheels. That about the coast of a regular replacement. The question is: Is it really worth it? Need a Doctor in the LA/SD area who specializes in Endurance Athletes... Platelet-Rich Plasma injections (PRP Injections), High Hamstring Tendinopathy Rehab Protocol. This impact leaves a very small dent, or pit, in the steel race. I'm looking for affordable performance that won't break the bank (ya,ya spit that coffee out on the screen as you laugh) and since it will be an upgrade I am also looking for something with red anodizing available for color scheme. This is important to shifting. Are they worth it? ceramic bearings in the pulleys can reduce rotational drag by 30%... A forum community dedicated to Road Bike owners and enthusiasts. The price of bicycle-specific ceramic bearings has been stupidly inflated. Bought a pair DA and both free spin differently. Mostly ditto the other comments, with a twist. doesn't make you any faster but looks damn good on your bike. Battle of the frames: Felt IA 10 vs IA 1? I know that Ultegra 10 speed used one ball bearing pulley and one bushing, and I was a little shocked how sluggishly the bushing one turned when I was playing with it as I replaced it. View Details. Also check to make sure the upper pulley can freely move side to side a little bit. There is nothing wrong with a 105 derailleur, but pimping it is going to look a bit silly. The Ultegra has slightly better pulleys than the 105. The better it rotates the fresher you will be at the end of a pedal. Meaning that riding with your jersey open or closed (which changes your wind resistance) is going to be a bigger deal than your bearings. CeramicSpeed claims the OSPW System is the fastest pulley system in the world providing an energy savings of around 1.6 watts for SRAM and 2.4 watts for Shimano over their standard pulleys. Granted one is with TT shifters and one is STI shifters, so the feel of the shift is hard to compare. 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. How long to recover from a calf heart attack. The first time I ever spun a Tiso full-ceramic-bearing jockey pulley was at Interbike a couple years ago. if you need new pulleys because they are worn, and the price is comparable then get them but but as an upgrade, worth it for noticable extra speed___no, Not F Schleck. That way when you criticize them you'll be a mile away & you'll have their shoes. Cannondale Derailleur … Kogel has several versions of them. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Let's analyze the pros, cons and applications. Am I gonna experience more speed like they advertised? :thumbsup: Is it really worth it? I will gladly carry the extra weight in my jersey pocket. But oversize pulley wheels actually offer enough of an advantage in wattage savings that it may be worth sacrificing style. When a bike with ceramic bearings goes over a bump, the ball bearing (which is harder than the steel race that contains it) strikes the inner surface of the race. 17116 Bob's Gap Rd, Valyermo, CA 93563-0056661.944.5239slowman-AT-slowtwitch-DOT-com. $51.99. Not worth it. In this video you will hear some alternative information on ceramic bearings. Official Giant Trinity Advanced Owners Thread, New Giant Trinity Advanced Hydration and Bento, 2016 Giant Trinity Advanced Pro Cable Issues, Official 12th Annual 2018/19 Slowtwitch 100/100 Run Challenge Thread, 2018/19 100 Runs in 100 Days Airing of the Grievances Thread, 100 Runs 100 Days 2017-2018 Challenge Thread: Dec 15-Mar 23. Fifth the price off eBay the stock Dura Ace BB when my ceramic Speed ’ s FAQ says the is! 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Beer is good, and more were legal to staple people in Dura-Ace... Are widely used in bulk material handling applications, reliable performance and longer service life is,!