Use of this site indicates your consent to the Terms of Use. Also there are very specific requirements about positioning of the nut on the cable. Do the Huichol of Mexico tie rope around the father's testicles during birth? After I find out this trick, I adjusted the gear cable myself, and havent had any problems since. The SG-S7000-8 on my wife's commuter was slipping on first and fifth gear. If you can select all of the gears (e.g. Thanks so much for putting this article out there. Very user friendly. I was having issues with my hub and you saved me a trip back to the shop. Good luck! all 8 on an 8-speed) accurately and theyre all different ratios, then its almost certainly adjusted properly. Indeed, it must be tightened at a very specific distance from the end cap on the cable housing (I think its 145mm for the Nexus/Alfine 8, and 184mm for the Alfine 11), which is why Shimano makes the highly-recommended TL-S700(-B) ruler: https://www.sjscycles.co.uk/tools/shimano-alfine-tls700-inner-cable-fixing-bolt-setting-tool-y13098024/ Im trying to adjust a Nexus 8-speed that was factory installed on a bike I purchased last year. Maybe its easier on more modern versions of the Nexus, but my 20 year old Gazelles 7-speed is truly, as someone remarked on YT, diabolical in its arcane contrivance. And how simple to adjust. Then fasten everything again. Refunds will be processed within 7 business days of receipt of the returned item. YEHHHH. No amount of adjustment would fix. I wonder if the Alfine has some sort of clutch to prevent damage from excessive torque. oh yea, I think this guy might have put on the dropout washers on wrong. I also needed to replace my carbon chain which was unusable with the teeth in tatters having been torn apart by the worn teeth on the rear sprocket. can you even fit them both switched over? Extra vertical space in shaded theorem if ended with displaymath or itemize. We see a lot of "ghost shifting" on vintage bikes with friction shifters because the flex of the frame under heavy load physically yanks the cable. Also it can freeze in the winter (still works, but need to change gears by hand on the lever on the hub) and this could also cause skipping because it would stick between gears. To put this into perspective, Ive had my Workcycles Omafiets for about nine months now, and cycled with it in some pretty awful weather. Finally, the gear cable must be well greased as any stickiness will cause the gears not to drop in properly and skip/crunch etc. Thanks. Privacy Statement - If you are certain you have matching hub and cassette (Sh*mano are notorious for changing parts through continuous improvement/ lock-in, but do change part numbers in the process) and haven't attached the parts to the hub upside-down or back-to-front etc., then the critical things are that the gear selector splines on the hub do not rotate independently of the cam and cable outer cannot move relative to the fixed part of the axle. (videos). The third one is fine so far (~15000km on it). Meaning of 'glass that's with canary lined'? Do NOT force-turn it (like some idiot did it on my bike, with a wrench, and ruined the shifter). Sorry to go off subject here, but where is that church? Have Shimano relaxed their tolerances on this hub/axle assembly? Broken bottom bracket? Also a cable outer full of gunge can prevent a linear extension/ retraction of inner for each click of the shifter in the relevant direction. As an aside the knurled adjustment has a click every quarter turn to make it even easier. and the gears change perfectly with no slipping. So for any reason you need to recable the Nexus be sure you follow the instructions precisely that come with the hub or shifter. Could one house of Congress completely shut down the other house by passing large amounts of frivolous bills? If this doesnt fix your problem, here is something else to look for if your nexus wont downshift. If you are thinking of returning a product to ElliptiGO for any reason, please keep the box and all original packing materials for the return shipment. Next time it goes into the LBS; ask if they can get the secret reverse gear working, too ? You also wouldn't want any friction between the metal parts by being too tight. Commuter bike for better performance: less weight, or internal gear-hub? Thanks. thanks andrea, trying your approach first and having other suggestions present in the back if the mind got settings right. Cookie Policy - Im definitely switching to hub gears for my next bike, derailleur gears are so faffy. I used to do this myself from age 13, until I got a transport Batavus with an incredibly difficult Shimano 7-gear hub. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. For additional help, you can reach us by email at [emailprotected] and phone 888.796.8227. My advice is if you have a Cube Hyde Race and your rear sprocket is black and plastic looking you should check the teeth and see if they are worn, like mine were, and if so replace it with a better quality rear sprocket. The new one has been trouble free for almost 3 years now. I am get hold of the cable arm and wiggle the whole cassette slightly which I think is wrong. Shimano Nexus 8 internal hub skip/clacking noise when under torque, Mystery grease source - Alfine 11, Gates Belt drive, Shimano bottom bracket. Welcome to SE - I'd normally suggest new users read the, Thanks for your help. New chain, skipping off small sprocket in front when under load, carbon gates belt drive . Why was Max Verstappen not required to start on his Q2 tyres in the Hungary GP? As a result, during your rides, your cable was "stretching" into the inside of the housing, leading to a misalignment of the gear cable. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I took the wheel off thinking I would need to take it to repair shop, but then discovered the binding was no longer happening. Really useful and bike now fixed! This will expose the chain, and (for our purposes) the relevant part of the rear hub. Maybe its because its second hand and its worn from time to time the cable does not recover its position when switching to a lower gear, which means the end of the cable shows at the shifter. My problem is solved now and it was solved after I instructed my mechanic to tighten the belt more (the Gates app showed me it was at the lower end of the spec). clunk/slip after shifting Nexus 8 (SG-8R31) IGH - suggestions. Why would the second dot in the window be missing, and how can I get it back? Excellent. Anyway, heres what you need to do to address this problem if you have a similar Shimano Nexus hub. This happening in gear (i.e. Advertising - Pulling on the cable with the shift lever works against that spring to pull it into higher gears. There is a simple finger turnable lock ring that holds the cable cassette on the hub. The Alfine is extremely susceptible to misalignment in the setup. the hub. my situation doesnt allow me to just go to the next bike dealer. There is a spring inside the hub that wants to put it into 1st gear. Top marks to Madisons, toothere was a time when questions to Sh*mano were self-evidently directed to /dev/null. Disclaimer: I have no experience of Alfine, only Nexus so cannot directly answer your questions. The solution to this is to alter your riding style: shift yourself into a nice low gear when at a stop light or beginning an ascent. An important thing: At least on the Shimano Alfine (so it might also be true for the Nexus), the barrel adjuster (knurl) contains a spring: You must first pull the adjuster outward, before turning it one way or the other by a quarter turn. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Alfine owner here whose hub is slipping after having changed gear. Can you get some other gears by holding the twist-grip shifter somewhere inbetween `clicks? Thanks for info I actually sent a video of the issue to Madisons (Shimano UK) and they told me that what they saw was ok so I had the confidence to complete the rebuild (included all new brake levers and cabling too). How does JWST position itself to see resolve exact target? You can sometimes see the bike flexing down at the bottom bracket when mashing up a hill, especially on older bikes with thin tubing like Reynolds 531. The cable is not routed around the cassette joint properly. My local bike shop took two days to service the bike, and the problem of slipping gears reappeared after a couple of days. My guess is that grease works fine because it wont pick up grit or grime like an exposed chain would. Nor do I. Youll need a tool to spread the rear fork, (I used a claw hammer before I got one, lol). Hello, i believe that i noticed you visited my web site thus i got here to return the favor?.I am trying to to find issues to improve my site!I assume its ok to make use of some of your ideas!! There are two sets of yellow markers that need to be aligned. Gradually increase your gearing until you hit your desired speed. Pingback: The Skipping/Pedal Problem | bonjour bicycle, On my Nexus 8 I only now seem to get two gears 1 and 4 any explanations? https://www.sheldonbrown.com/nexus-mech.html. I had the classic 8-speed backpedal clutch-slip blues, but instead of taking it apart, I took the wheel off the frame. I sent it straight back. I think Ill repair my bike myself again. Im a dummy. In addition to an incorrect cable routing, you are looking at the wrong points for the adjustment. Any thoughts? It must be sufficiently tightened so it does not slip. Mark, thanks a lot for this very helpful reply. I used these guys (https://hollandbikeshop.com/) as could not get parts from UK, a bit pricey and annoyed as hell but sorted everything out. Copyright 2021 MH Sub I, LLC dba Internet Brands. If so, you can expect the worst performance from your parts: learn to love low gears and learn when to coddle your parts and when it's ok to put down the watts. rev2022.8.1.42699. Change), You are commenting using your Facebook account. Since then. On the 7-speed, it is the grooves machined into the surface of the metal cassette joint components which need to be aligned. I bought a Cube Hyde pro with a Nexus 8 speed hub and the gears started to slip, it was infuriating. I own a Batavus Lento fantastic Dutch bike however, adjusting the nexus brakes at the rear end are the easiest maintenance issue. Shimano specify the length in mm and you should stick to that. im sitting pretty much at the end of the road in the pampa in Nothing too serious just that they wouldnt engage in the gear I wanted, or would jump from one to another. Once theyre lined up, youre all set. One can be adjusted using the gear barrel adjuster. The colored washers are definitely in the correct position (that's the one thing I made sure to document before disassembling the rear wheel). It sounds crazy - I know. I think with all the reports out there I stand a good chance in the small claims court. But apart from mending one puncture (a hawthorn spike went straight through my rear tyre), pumping up the tyres every month or so, and wiping down the frame and wheels with a cloth, what I am about to describe is the only bit of servicing Ive had to do. Now shifting seems smooth for gears 1-6, however it feels like I hit a hard limit and even with a lot of effort, can not move the shifter above 6, thus cant get it to indicated 7th or 8th gear. Connect and share knowledge within a single location that is structured and easy to search. The Alfine one works ok. Process is basically identical, with 4th being the reference gear, except that the the two marks on the hub are red. The other thing that can go wrong is the position of the nut on the inner cable beyond the outer. Love this bike. But your bike dealer should be able to fix/diagnose this within seconds. On my Nexus the two markers are perfectly aligned, but its in fifth gear, not fourth gear, and the second line doesnt even appear in the box when its in fourth gear. I have sent it back twice, and still no good. Do Not Sell My Personal Information -. Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. It was ok for a couple of rides and then started popping again. Ive been having some issues with my Nexus 8, and was able to get it almost perfectly adjusted once, following the above steps. First make sure everything is assembled as it should be (adjuster barrel not completely detached from the shifter, no kinks in cable, end of cable attached to hub and wrapped around cam correctly, etc.). Sheldon Brown's extremely helpful web site indicates how you can achieve this. Theres no difficulty in shifting however, shifts are smooth. It also does skip when misaligned as mentioned in the other answer and yes it's tricky to get right and tends to misalign over time. Never go to an LBS who isnt uses to speed hubs. Ive been running a 2nd hand nexus 7 with an electric motor (mid mount). Mine has a simple detachable rear section, that pulls off smoothly. Hi: I have asked Tredz for a refund or replacement bike but so far they have refused. All rights reserved. The Rohloff one works. Now my Marin cycles cross trainer is running like new. Super great! In my case, the problem re-occurred a couple weeks later. My tip? The second possibility requires no explanation. so once more hail to you This was really helpful. Have I stuffed it? https://backwardincompatible.com/post/186916671580/shimano-alfine-sg-s7000-8-loose-spring-on-the, credit to Andrew Kashutin for identifying it. The item may be tried on for fit, but not used. If yes, demonstrate it in front of the dealer. Change). I followed your steps this morning (more or less, my chain case is different) on my WorkCycles Oma and it worked. Now the bike is back to shifting perfectly through all 8 gears. I think you must be the bike equivalent of the plain English,campaign. Thanks. There are two yellow marks on the underside of the hub that must align perfectly in 4th gear (for 7 and 8 speed Shimano IGHs). Its St Marys, the parish church of Horsham. You can download the specific instruction sheet for yours from the Sh!m*no web site. Here's what I think happened: you got your new bike, but the work of bedding in the cables wasn't done to completion. Are you a heavy rider who likes to stay in a high gear? Does the Alfine feel noticeably less lossy compared to the Nexus? Just adjusted the gears on my brand-new Gazelle Cabby, thanks! Downshifting did not work; resetting the return spring worked perfectly. Am I better buying new? (LogOut/ The best answers are voted up and rise to the top, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. Tacoed wheel? Thanks very much again. However, since then, I have taken the wheel off (unrelated to hub adjustment) and also had the bearings replaced at a shop. On the bottom of p. 21 of that guide there is a specific picture showing correct and incorrect cable routing. need to have lower gears to get up steeper hills. Cyclocross and Gravelbiking (Recreational), Long Distance Competition/Ultracycling, Randonneuring and Endurance Cycling, Track Cycling: Velodrome Racing and Training Area, Classic Hybrid ? I have a Trek with a earlier Shimano 7 speed I bought about 15 years ago although not rode hard as bought after I retied to use local, the tips have use full to help maintain my bike. > Rotating the knurl will allow you to line up the yellow markings. Fill in your details below or click an icon to log in: You are commenting using your WordPress.com account. In the 8 speed I THINK it's 4th gear that should make them aligned. I am frequently wrong. I was able to fix my gears in a snap! If you find that you frequently have to readjust the shifter cable your issue may be that the nut on the cable that attached to the hub is slipping. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. What would realistically happen after a gravity magic spell is cast? Thank you so much for writing this up. To see if this is your problem, find some instructions on how to remove the rear wheel (e.g., to fix a flat), the first step of which is to unattach the cable. If the spring is not pulling, there is no way the cable can push it into lower gears, so it pushes out of the shifter instead. Change), You are commenting using your Twitter account. I forgot to switch my gear to 4 and took the wheel apart from the bike, now I dont know how to put it back:( We have bikes with the Nexus 7 hub, with a lever-operated rear roller brake. Is "wait" an exclamation in this context? Thank you, problem solved! Thats about it. I butchered the old rear sprocket off my BMC and replaced the nearly new but badly worn one on the Cube and it has been fine since (a further 800 miles so far). Very useful article. No, skipping under load is absolutely not normal. Only on steel bikes! Is it legal to download and run pirated abandonware because I'm curious about the software? I bought a nice belt-drive bike with an Alfine 8 hub. My gear was slipping very badly. Appraisals. You will also need to tension the belt to the appropriate tension as mentioned in my comment and here: https://www.montaguebikes.com/folding-bikes-blog/2016/03/adjusting-belt-tension-with-eccentric-bb/. If you are an expert bike mechanic, then this probably isnt the post for you, as I expect you know all this already. Temple Cycles - Classic Stylish Steel bikes UK, Gearhubs demystified and other cool stuff, file:///C:/Users/Production/Downloads/DM-SG0004-00-ENG.pdf, https://www.koga-signature.com/docs/mnce-manual.pdf, Sturmey Archer X-RF8 (w) IGH shift from gear 1 to 2 not engaging. Have a question. Could be defective or improperly adjusted/assembled. Then I squirted a mixture of WD40 and spray cooking oil (olive oil) into the space behind the belt drive gear. Classic and Vintage Bicycles: Whats it Worth? Can Shimano fix this? As its working properly, Ill just leave well-enough alone. To learn more, see our tips on writing great answers. (Hope that it will work longer than it did for you. The yellow LINES above the yellow dots (closer to the chain) are what should be aligned. All you need to do is replace the end of the chain case (slot it in at the bottom first, then click the top bit in) and youre ready to go. Would a spear ever out perform a bow when wielded by an insanely powerful person? How tall/heavy/strong are you ? it should include the adjustments to synchronize the shifter and the Shiftee, the hub. Discovered after about a further 6 weeks of testing the Cube that the rear sprocket was the fault and cause of the slipping. Eventually, I took it to the (Linus) dealer and they replaced the entire hub (for free). In case anyone else has a similar problem of not being able to shift into 7th or 8th gear on an 8-speed Nexus hub I solved this thanks partly to info here. Should I just leave it alone the way it is? Thanks for contributing an answer to Bicycles Stack Exchange! Thanks to you its now running smoothly again. I have tried the same procedure but it seems the knurl is jammed and I am worried that if I force it I may bust something any ideas? If the cassette arm just wont go at a good angle, you probably have the wrong washer. Regards, Chris Davies. easy walking distance from home or a bike shop. I also have a belt drive bike with a Alfine 8 hub (Cube Hyde Race). Wow, thats very easy adjustment! This video shows how to adjust the Shimano Alfine hub on the ElliptiGO 8-speed elliptical bicycle. After the cable is unattached, use the allen wrench in the hole to move against the spring back and forth through the full range of motion. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); ElliptiGO World HQ | Solana Beach, CA 92075. That said, it's still easier than replacing entire chain sets. The first thing to do is to set your gear adjuster in number 4 it is marked with a small dot on the display, for clarity (mine is an eight speed, with a coaster brake but the same principle applies for other Shimano hub gears; select the marked gear). My chain was greased too I didnt need to clean it for well over a year, because its well protected inside the chain case. This solved my problem. A little more fiddly but more precise. Nowadays its easy again. thank you very much for the info. Im already planning to convert it to chainring gears and some dropbars. Ive been adjusting by aligning the painted yellow dots rather than those in the window, but cant seem to get it quite right. And, well, this isn't really part of the answer: But ever since I got a second bike with a Rohloff hub I would never get an Alfine one anymore. If you want to eliminate clunky and uncertain gear changes, the two yellow markings have to line up (they represent the fixed part of the hub itself, and the rotating adjusting section, that actually shifts the gears inside the hub but thats not too important). I have previously owned a BMC with 8 speed Alfine with carbon belt and it was fine for the 3 years and 14,000 miles I rode on it so knew the Alfine system quite well. Perhaps your bike shop didn't prime you for what the hub is actually capable of. Help! The bright yellow or red paint which is used to highlight those might not be precisely centred over them. Great article for hub newbies. I too, consider myself reasonably adept at things menchanical. The markings on the bottom are easier to see than the window at the top, but require a work stand or flipping the bike upside down. worked immediately and simple. What is the behaviour when other gears are selected (Nexus are not supposed to have `neutral gears like old Sturmey Archer hubs)? Is this always in one of the lower gears? It is bitter experience of such a scenario which has made me dubious vis-a-vis the Nexus/rollerbrake combo for anything other than localised urban usage i.e. The Official Bike Forums Cafe Press Store, Adaptive Cycling: Handcycles, Amputee Adaptation, Visual Impairment, and Other Needs. My dealer thinks this is normal. Don't think the people in the bike shop ever regreased it either. Diff-in-diff parallel trends with a positive outcome. I know next to nothing. Recently it stopped going above gear 4. Never tried it. It is best to do the adjustment with the cable released in first gear; then shift back to fourth to check. Thanks, Mark. The new back wheel is behaving better but it still slips/skips under load. If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance. I have an Alfine 11 (so very similar) and I had the hub replaced 2 times on warranty because of this skipping problem. You can check the tension in the belt using this Gates app for your phone: I never greased the gear cable on my hub, that was never a problem for me. But Ive since oiled by chain with standard lube (just because I dont have any grease!). Contact Us - By logging into your account, you agree to our. That sounds like the chain slipping over the rear sprocket oh wait you have a belt drive. Tightening this into proper position fixed the problem. After a month of banging my head against this it turned out to be not the oil or the grease or the bearings or the cable (all which I replaced). The problem results from the gear cable stretching with use, meaning that it is no longer pulling the parts of the hub gear into the proper position for smooth gear changes. After finding this diagram the fix took all of 10 seconds, then re-adjusting the proper alignment of yellow marks took another 30 seconds. sounds like it's not setup correctly. In your picture you can barely see the 2nd yellow line. (LogOut/ thanx a lot for that precise description. https://www.sjscycles.co.uk/tools/shimano-alfine-tls700b-inner-cable-fixing-bolt-setting-tool-y72a06000/. Thanks for writing this down so clearly, really useful! You could be simply mashing too hard and pulling the cable - even a millimeter would throw the planetary gears out of alignment and cause problems. Over 12 months the rear hub got slower and slower to change gears. The problem has nothing to do with yellow marker alignment or belt tension, otherwise cube would not have replaced the hub and internals twice! it was the stupid return spring on the small clutch. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. . Done! Why would space traders pick up and offload their goods from an orbiting platform rather than direct to the planet? In which case, time for a new cable! It lies on the cable coming out of the gear shifter. Hopefully, your fix is permanent. the yellow dot on the outside is no longer visible in the window. The cassette is not a tight fit despite attaching it correctly. The yellow dots are only there for installation. If not; it sounds like your gear cable inner has been set ~5mm too short, youve got two identical first and no top gear! I can clarify this if you think it may be the problem). I have experienced exactly the same problem ie popping/skipping under load. In my case, something was binding around 4th gear, and the mechanism would actually get stuck there. When I tried to downshift my Nexus I found the cable casing would pop out of the adjustment knurl and no shifting would happen. The second time Cube replaced the whole hub. But that's my case :). It has hub brakes and if there is any operation involving removing the rear wheel, for instance replacing the tire, getting the wheel off by undoing brake and gear cables etc is nightmarish, and gets worse when they all have to be put together again. No chain cleaning, no brake maintenance nothing else. Wiggling side-to-side does not effect the selection mechanism muchmy plastic lock ring once became completely detached for a year (including a ride to the South of France and back) without any noticeable detrimental effects!

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shimano alfine 8 adjustment