The price of bicycle-specific ceramic bearings has been stupidly inflated. They’re amazing, and worth checking out as a first step. CeramicSpeed Titanium Pulley WheelsUpgrade your Shimano rear derailleur with CeramicSpeed Titanium Pulley Wheels for reduced friction and extended lifetime. That being said, I do use jockey pulleys with the ceramic bearings. 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. On my bike, however, even with the b-tension screw bottomed out, the upper pulley contacted the 28 in the big ring. Am I gonna experience more speed like they advertised? :thumbsup: Is it really worth it? But oversize pulley wheels actually offer enough of an advantage in wattage savings that it may be worth sacrificing style. You'll get new pulleys and crisper shifting for not a whole lot more than just the pulleys. Sure as hell just looked and felt like a plastic bushing. 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. “Ceramic bearings are beneficial in environments not requiring grease lubrication,” says Lew. Frictionfacts.com is the place to get numbers on this and other upgrades. Kogel has several versions of them. [zedzded] Bought a pair DA and both free spin differently. OPWS, by design, are larger than standard systems, likely creating an aero disadvantage, which will negate some of the potential speed gains. Come join the discussion about bike parts, components, deals, performance, modifications, classifieds, troubleshooting, maintenance, and more! If you have a 10 year old derailleur, I'd say just buy a whole new one. 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. Coated version for even longer lifetime. [, Re: Ceramic replacement pulleys. Anyone who believes there are no stupid questions never worked in a bike shop. The pulleys of choice for me was the Aluminum derailleur pulleys with ceramic bearings. JavaScript is disabled. 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… Kinda strange whatever the bearing is made of. This article is a short review of the CEMA Bearing Full Ceramic pulley wheels. 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. Are they worth it? Re: Ceramic replacement pulleys. 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. Are they worth it? View Details. Am I gonna feel the difference? Our pulley wheels are compatible with SRAM, Shimano and Campagnolo. 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. 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 an expensive solution to a nonexistent problem. $19.99. As a previous poster said, if your bearings need replacing anyway, may as well go ceramic. Before you criticize someone walk a mile in their shoes. The only load those pullies have on them is induced by the tension spring. HP gains are not of my concern with this mod but if it makes the engine more efficient and run better than why not. Compex Elite vs Performance - which one to get? That about the coast of a regular replacement. Are they worth it? If they still feel clean and smooth, no benefit to changing. [, Re: Ceramic replacement pulleys. That really can save you more than a watt. 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… Are they worth it? Are they worth it? The big idea here is to reduce friction in the drivetrain. So with the $15.00 purchase it gives more access to other reviews and articles? [shoki] [exxxviii] Are they worth it? As a bonus, CeramicSpeed's testing shows that these pulleys last anywhere from 3-5 times longer than stock. 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. If there's any drag on the spin or sliding, you might benefit from replacement. You probably have some play in the pivots after all those years. If you want to throw money away then send it to me. Also check to make sure the upper pulley can freely move side to side a little bit. This Ceramic Pulley Lagging is fabricated using high grade raw material and using latest technology. 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. No. I've had 105 derailleurs on many different bikes. Well I do like a stealth machine so that helps the decision factor. How long to recover from a calf heart attack. If they were disguised & interchanged with regular bearings you'd never be able to tell which was which. I kind of wish it were legal to staple people in the face. Am I gonna experience more speed like they advertised? Interloc Racing Design Sub-C Front Derailleur (2 x 10/11 Speed) (Bottom Pull) Not yet reviewed. CeramicSpeed ceramic Pulley Wheels offers smooth and precise shifting and less drag. Need a Doctor in the LA/SD area who specializes in Endurance Athletes... Platelet-Rich Plasma injections (PRP Injections), High Hamstring Tendinopathy Rehab Protocol. I have DA and Ultegra. You can get them for road and cross conditions so naturally I chose road for the smoothest friction. 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 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. But, full ceramic in the jockey wheels? 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. @1999-2020 Slowtwitch, Inc., and Slowtwitch.comReproduction of material from any Slowtwitch.com pagewithout written permission is strictly prohibited. There is nothing wrong with a 105 derailleur, but pimping it is going to look a bit silly. 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 bicycle-specific ceramic bearings worth it: probably not. [, Re: Ceramic replacement pulleys. Are bicycle-specific ceramic bearings worth it: probably not. Calf muscle pull or tear? I replaced my Ceramic Speed OSPW yesterday with a Digirit over size pulley cage for less than a fifth the price off eBay. That way when you criticize them you'll be a mile away & you'll have their shoes. 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. Machined from solid Delrin at our California machine shop, not molded, they are much harder and more precise than any competitor’s jockey wheels. Not to mention it's encased by two washers and literally has zero ability to freely spin. Used them on an ultegra derailleur. For less than $50. Ceramic, which is significantly harder, does not have this ability. I can do that. God is Great, Beer is Good, and People are Crazy! We have a customer who claimed he was four. If you want to know more on the scientific facts of the matter take a look at the video below! 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 better it rotates the fresher you will be at the end of a pedal. Not recovering IT Band Friction Syndrome!! In my opinion, the 105 and Ultegra work nearly the same. So it will be an in-depth look and feature comparison. So far so good after 1k miles. Hello there i was wondering if whether an under drive pulley upgrade is worth it. [. $51.99. The price of bicycle-specific ceramic bearings has been stupidly inflated. Putting them on the pulleys is a joke. 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. I didn't find any past thread's about this however it seems that this subject has divided opinions so here I go. Ceramic Speed is worth the money, but if on a budget, F1 Ceramic is similar (same grade, coated options) for much less. Am I gonna feel the difference? doesn't make you any faster but looks damn good on your bike. red aluminum jockey wheels will make more noise than the standard rubber/plastic ones. 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. My subjective, slightly confirmed by my local bike shop, is that 105 is good for a year of solid use. This is important to shifting. 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. [jeremyb] These are essential to improve conveyor belt performance by … It's October - go swim (monthly fish thread), For the Fish: Ankle Flexibility and Kick Free vs Back. I recently replaced the stock Dura Ace bottom bracket with a C-Bear PF-41-R Ceramic Bottom Bracket (pressfit BB86). Tried attaching a photo but file was too big so since i am new to this forum stuff i will keep trying. I do not notice any difference at all. Illiac Artery Endofibrosis - I've got it. I put an Ultegra on, and the shifting quality improved substantially. The pulley wheels are the fastest spinning bearings on your bike, making an upgrade to CeramicSpeed an effective way to save you precious energy. 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. In 105?? The question is: Is it really worth it? 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. Sports Hernia/Inguinal Disruption Surgery. These are machined smooth for easy cleaning and highly recommended for … 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 I will gladly carry the extra weight in my jersey pocket. 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. Ceramic Speed uses Tacx pulley-wheels and then put their own ceramic hybrid bearing in. I think I paid $15 for the pair. ceramic bearings in the pulleys can reduce rotational drag by 30%... A forum community dedicated to Road Bike owners and enthusiasts. 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. 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. 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