View and download shimano nexus service instructions manual online. The shimano nexus 7 speed hub is available in either coaster brake or roller brake. Sg 7r46 sg 7c30 sg 7c18 for axle length 201 mm tl7s40b grease. Shimano parts the shimano nexus internal gear hub sgc6001 features 8 gears and a coaster brake. The golden wrench servicing of an internally geared hub. General information on installation and adjustment of newer shimano nexus 7speed hubs is in the dealers manual. We also hope everyone is taking this virus very seriously as the impacts to all of us are still somewhat unknown. Shimano nexus sg c60008 8speed rim brake internally geared hubshub includes 19t and 21t cog, 3 size. Im not sure if im imagining it, but it seems like my bike has lost a considerable amount. All the details are on the static shimano nexus inter8 hubstripping page.
Turn the brake arm unit upside down and hold the two bevelled surfaces of the hub axle on the sprocket side in a vice. Kontermutter einstellmutter 15 sg7r40 sg7r41 brim41r hinweis. Internal assembly axle length 182 mm internal assembly axle length 201 mm stop ring for carrier guide 2. Its not a pretty sight, but the full detail and nasty pictures is listed on another page. Nexus 7speed internal hub sg7r50 specifications are subject to change without notice. What is the difference between the standard sg8r20 and the premium inter8 sg8r25. When replacing parts, replace the whole internal assembly or. Home bicycle wheels rear hub nexus shimano internal. Nexus 7speed internal hub wcoaster brake shimano sg7c15. Products are not guaranteed against natural wear and deterioration from normal use and aging. Shimano nexus sgc60018v internal gear hub rim brake. Featuring the unique gear change support mechanism that makes a real low effort shifting. Shimano nexus sg 7c30 shimano nexus sg 7c26 shimano nexus sg 7c25 shimano nexus sg 7c22 shimano nexus sg 7c16 shimano nexus sg 7c15 shimano nexus sg c30007c shimano nexus sg c30007cdx shimano nexus sg c30007r shimano nexus sg 7r50 shimano.
Internal shifting rear hubs electric bikes in california. My bicycle is equipped with shimano nexus sg7c18 7speed coaster brake and in order to change a tube you need to remove both the chain and the internal nexus 7 hub cassette joint. Sg7r46 sg7c30 sg7c18 for axle length 201 mm tl7s40b grease for axle length internal assembly. My bicycle is equipped with shimano nexus sg 7c18 7speed coaster brake and in order to change a tube you need to remove both the chain and the internal nexus 7 hub cassette joint. The sprocket wheel on my shimano nexus 7sgr46 no longer.
Shimano nexus sg7c30 shimano nexus sg7c26 shimano nexus sg7c25 shimano nexus sg7c22 shimano nexus sg7c16 shimano nexus sg7c15 shimano nexus sgc30007c shimano nexus sgc30007cdx shimano nexus sgc30007r shimano nexus sg. Shimano nexus sg8r20 8speed internally geared hub with roller brake this hub was ridden less than one year in seattle. Shimano nexus sg7c18 right hand hub cone with seal modern bike. Shimano nexus sg7c18 right hand hub cone with seal.
The sprocket wheel on my shimano nexus 7sgr46 no longer rotates freely when freewheeling my bike. Shimano nexus service instructions manual pdf download. When necessary, i convert shimano s data into useful spoke calculation dimensions with some simple arithmetic, and factor in 3mm thick hub flanges an approximation. Shimano nexus sgc60008c 8speed internally geared coaster brake rear 36h hub 5. Shimano alfinenexus internal gear hub parts universal cycles. The most sold internal geared hub in the world is now online on hubstripping with a lot of top secret informations. Shimano nexus sg7c18 right hand hub cone with sea read more. Shimano alfine sgs501500 and nexus sg8r35 ring gear read more. How to fit gear cassette to a shimano nexus 7 nexus 8 hub. It is recommended to use genuine shimano parts only. Sg 7r46 sg 7c30 sg 7c18 for axle length 201 mm tl7s40b grease for axle length internal assembly. Shimano nexus sg3c40 and sg3c41 3speed coaster brake hub driver unit, does not fit 3speed roller brake hubs. This right hand cone can also be used on the following internal hub gears.
Shimano 7speed hubs have a overlocknut spacing from 127 to mm, as sold. Also, for carrying out maintenance, the use of shimano internal geared hub grease or a lubrication kit is recommended. Do shimano nexus hubs lose efficiency as they get older. C6000 series the nexus 8speed system delivers a high level of design, quality and function. The final step of combining all the components is discussed here. I made all the details correct, but have problems with all the mates to make it work. I ride a 5 year old commuter bike with a shimano nexus 8 internal hub gear, thats done about 20,000km. View and download shimano sg7c26 technical service instruction online. The table of contents below is a clickable image map.
Shimano parts the shimano nexus internal gear hub sgc6001 features 8 gears and is suitable for the use with rim vbrakes. The formula is to divide spacing by two, add or subtract the overall offset, then subtract half of our assumed 3mm flange thickness. Buy shimano rear internally geared bicycle hubs and get the best deals at the lowest prices on ebay. Shimano alfine sgs501500 and nexus sg8r35 ring gear 1. If someone wants to give it a go be my guest files. Shimano nexus sg 8r20 8speed internally geared hub with roller brake this hub was ridden less than one year in seattle. Owners manual for the shimano sg7c16 and sg7c18 nexus inter7 hubs shimano sg7c26 nexus inter7 coaster brake hub. Shimano nexus sgc6010 universal bicycle hub kit isgnexus8vkitz. Here are some pictures of a typical failure we see with shimano nexus and alfine 8 speed hubs. Shimano nexus 7 hub cassette joint 39 and lock ring. Nexus 7speed internal hub wcoaster brake shimano sg7c16.
Nexus sg 3r40 sg 3r45 sg 3r75 sg 3r75a sg 3r75b sg 3d55 sg 3c41 sl3s35e sl3s41e sl3s42e smbc03 smbc04 smbc06. Technical information about shimano nexus 7speed internalgear hubs. Shimano alfine, shimano nexus inter8 or sram imotion9. Entretien des moyeux shimano nexus reglage des vitesses, montage raccord cassette, etc. The series is primarily aimed at the comfort market such as urban commuters and tourers, and as such is not made to withstand the rigours of offroad or mountain biking. If the wheel becomes stiff and difficult to turn, lubricate it with grease. And this post is mostly about hubs, about whether getting a shimano nexus hub serviced is a good idea, and whether a premium redline nexus hub is actually any better. Shimano nexus is a brand of bicycle components which includes products such as epicyclical gear hubs, cranksets, shifters, brake levers, hub brakes, hub dynamos, and a cpu for automatically changing gears. You are covered by the ebay money back guarantee if you receive an item that is not as described in the listing. Shimano sg7c26 technical service instruction pdf download. The 7r40, sg7c26, and sg7c18 look very similar but have a twopart driver unit.
Shimano nexus 7 hub sg7c18 lock ring problem ambience. With the bike on a workstand, the rear wheel rotates when i turn the pedals backwards. Shimano nexus sg7c25 gear hub files 3d cad model library. Shimano nexus sgc60008c 8speed internally geared coaster brake rear 36h hub. Sg 7c15 nexus 7speed internal hub wcoaster brake inter7 hub. Did you know that your inter8 loves to bathe in oil. My bicycle is equipped with shimano nexus sg7c18 7speed coaster brake and in. Hold the two bevelled surfaces of the hub axle on the brake arm side in a vice and remove.
Shimano rear internally geared bicycle hubs for sale ebay. Shimano nexus 3 parts list exploded diagram and parts list for the shimano nexus 3speed coaster brake sg3c41. Shimano sg7c16 and sg7c18 owners manual vancruisers. Owners manual for the shimano sg7c16 and sg7c18 nexus inter7 hubs. There is no standard shimano manual giving names to all these parts. Its a bit technical but if thats what you want, there you go. Fusionner pdf combiner en ligne vos fichiers pdf gratuitement frfusionnerpdf. The table links to current shimano documents, but also to documents generated outside shimano, or which shimano no longer offers. Shimano internal gear hub service aarons bicycle repair. When necessary, i convert shimanos data into useful spoke calculation dimensions with some simple arithmetic, and factor in 3mm thick hub flanges an approximation. Service manuals for modern shimano internal gear hubs. Shimano nexus sg5r35 cj8s40 cassette joint fixing ring. Once this happens, it puts stress on the larger part of the axle which can crack and then stress the twin tang on the opposite side of the axle.
Nexus sg7c18, coaster brake, find documentation with this search. Sg4c35 shimano nexus 4speed hub wcoaster brake inter4 hub. My bike a kettler spirit came with a shimano nexus 8 hub, one of the current sg r831 models, and i had been very happy with that. Sg 7r46 shimano nexus 7speed hub whipower roller brake inter7 hub brim41r interm brake. Shimano nexus inter7 mm rear hub dimensions freespoke. Parts list, exploded drawing same, on alternate site.
Nexus 7speed internal hub wcoaster brake sg7c30 shimano. Universal cycles shimano alfinenexus internal gear hub. Turn the brake arm unit upside down and hold the two bevelled surfaces of. Hold the two bevelled surfaces of the hub axle on the brake arm side in a vice and remove the dust cap with a screwdriver. If shimano grease or a shimano lubrication kit is not used, problems such as a malfunction in gear shifting may occur. Wouter pasman has posted an article in pdf format on the web describing the workings of the nexus 7speed. The lowest gear for both the nexus and alfine is the exactly the same 0. The tang on one side of the axle has a tendency to break off. Nexus 7speed internal hub wcoaster brake sg7c30 specifications are subject to change without notice. Do not use them with any other roughly 1 minute after stopping the bicycle, the energy saving bicycles. For use with shimano nexus sg7c18 internal hub gears. Shimano nexus sg5r35 cj8s40 cassette joint fixing ring y33z98020. Shimano nexus 8speed hub service manual sheldon brown.
If parts such as bolts and nuts become loose or damaged, the bicycle may suddenly fall over, which may cause serious injury. Nexus 7speed internal hub wcoaster brake sg 7c30 specifications are subject to change without notice. Many technical advances have been achieved, like incorporating shimano s unique gear change support mechanism that makes a real low effort shifting. Shimano nexus inter 8 hub excluding auxiliary components. Dismantling it after failure it was evident that it had let water inside and there was lots of corrosion. Overlocknut spacing can be reduced somewhat by using. Nexus 7speed internal hub sg 7r50 specifications are subject to change without notice. In addition, if adjustments are not carried out correctly, problems may occur, and the bicycle may suddenly fall over, which may cause serious injury. My first shimano hub gear only lasted two years before failing catastrophically. I purchased a shimano sg7r40 hub, and installed it on one of my own bicycles, an.
They can tell you if the hub is still viable hub, and if so, what maintenance needs to be done. Neither the shop nor shimano used enough grease and oil for nw weather. Shimano nexus sg7c25 gear hub shimano nexus sg7c25 gear hub loading. Upgrade your ride with this easy to install, smooth, and durable shimano 7 speed wheel set. Either way, i would take it to a certified shimano dealer to have a look over. If you are interested to learn more about the internal workings of your nexus hub, may i suggest starting here. Shimano nexus 7 speed internal rear hub wheel set comes with both front and rear wheel. Shimano internal unit nexus inter 7 sg 7c15 7c16 7c18 first we need to remove the external components turn shift mechanism locking left and assembly slides right off shimano gear hub shimano sg 4r31 4 sd. In addition, do not use any hub dynamos other than function is activated and the liquid crystal display turns off.
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