Above all, the optimality of repair and maintenance parts holds the key to it. The table of contents below is a clickable image map. Experienced commuters have a secret for troublefree riding day after day. The nexus 8speed system delivers a high level of design, quality and function. However, in wet climates we still recommend an initial weatherizationoverhaul at miles. Popular name manufacturer new releases price 09 price 90 discount.
Shimano nexusalfine 3, 4, 7, 8, 11 speed hub technical information. What rear hub to use with 8fun electric bike forums q. Shimano gear hub oil to service and maintain internal gears hubs to keep them running smoothly and reduce wear and miss shifting from dirt oil. The shimano nexus group combines the best features of your old 3 speed, and eliminates the worst, thanks to modern materials and technology. Many technical advances have been achieved, like incorporating shimano s unique gear change support mechanism that makes a real low effort shifting. Nexus also makes three speeds also and with sevens, eight and now elevens available the choices are all good. Just check out spottys builds, he sure put together some very fine 2 bikes there.
Below is the driver unit disassembled friction ring version. Now, the first thing you want to do is go up to the shifter on the handlebar and put it into second. Compatible with nexus 8 systems optical gear indicator precise, triggerstyle actuation item specifications color. I have a just over one year old halfords carrera subway 8, with shimano nexus hub gears. Shimano nexus 3 parts list exploded diagram and parts list for the shimano nexus 3speed coaster brake sg3c41 shimano nexus 3 owners manual owners manual for the shimano nexus inter3 coaster brake sg3c41. Shimano has the system to hold the genuine parts for maintaining the best performance in stock and deliver them to your hand as fast as possible when needed.
Out of sight and out of mind, internalgear ig hubs offer you a wide range of gears for tackling hilly terrain like a derailleur, but offer many benefits for city riders like ease of maintenance and the ability to shift while at a stop. The shifting mechanism is enclosed, keeping the shifting system lubricated for low maintenance. The rod shifts the internal gears, giving the bike effectively three different gear ratios. When we get one of these hubs from shimano, or on a built bike, they come packed full of 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. My experience as a bicycle mechanic in the netherlands. Well, shimano s eightspeed alfine hub, with trigger shifters and disk brake option, gives similar performance to the inter8 but with less of a weight penalty though more cost and would suit. The main details of this hub are described in us patent 5,322,487 1994. For optimal functionality and extension of maximum reliability. Also, for carrying out maintenance, the use of shimano internal geared hub grease or a lubrication kit is recommended. Shimano sg3c41 3speed internal gear hub with coaster back pedaling brake.
Internal geared hub coaster brake disc brake shimano. How to do an oil bath on a shimano alfine 8speed hub. Get the best deals on shimano rear internally geared bicycle hubs when you shop the largest online selection at. With most shimano internally geared hubs, grease is used to lubricate moving parts. The nexus 8speed transmission offers an excellent range of gears equivalent to an 14 cassette wide enough for most riders on most roads in britain.
Shimano internal gear hubs shimano makes several 8 speed internally geared rear hubs, and for 2011, they also have an alfine hub with 11 speeds. Buy rear internally geared bicycle hubs and get the best deals at the lowest prices on ebay. Internal gear hub maintenance bicycles stack exchange. Geds 12 reasons to consider nexus 8 hub gears on your next bike. City, sport shimano alfine sg500 2006 8 307% 1600 g city shimano nexus inter8. Includes revo twist grip shifter, cable and 19 tooth cog. Shimano internal hub maintenance oil kit hub accessories shop. Shimano nexus 3speed hub problems bicycles in newcastle. Buy internal hub maintenance oil kit at best price.
We believe in the power of cycling to create a better world as we move forward. Shimano nexus 7 speed internal rear hub wheel set comes with both front and rear wheel. Shimano rear internally geared bicycle hubs for sale in. I previously wrote about the problems with my shimano 3speed hub here and here. The comparable sram 3spd hub w coaster brake weighs in at 90g, or 3lbs. Ive had numerous problems with the chain and got my third chain a few months ago. Belt drive is ideal because its very low maintenance and it offers 34x the service life of a chain. Shimano nexus sgc60008c 8speed internally geared coaster brake. If seo wizardry works its magic, then you probably stumbled across this page because youre looking for information on the shimano nexus 3 sg3c40 internal geared hub. The nexus 8 speed takes an optional roller brake, and the alfine 8 speed and 11 speed hubs take a centerlock disc that works with most disc brake systems. As you are aware, consistent maintenance is critical to the bike performance.
Shimano nexus di2 sgc70505d internal gear disc hub 38 x 5 black 32h. I have also heard that internal gear hubs are generally maintenance free. The internal shift system consists of those parts of the bicycle which allow you to shift gears including the shifter, rear hub, and shift cable. To build closer relationships between people, nature, and bicycles. View shimanos manufacturing technologies, enthusiasm for design and craftsmanship, ir information, recruitment information, and social activities. Furthermore, we at shimano have enhanced the product lineup, which was developed to provide more comfort and pleasure for commuting and shopping closely related to everyday life. How to adjust a shimano 3speed hub gone outdoors your. Shimano 3s internal gear hub service part 1 youtube. I think someone on yacf was flogging the innards of a nexus. Ighs do need maintenance every now and then, though. If the special grease or lubrication kit is not used, problems may occur such as the gear shifting not working correctly. The nexus 3spd hub is relatively inexpensive, and will afford multiple gear choices on a bike that is unable to mount a standard derailleur. Bicycle internally geared hub shifters modern bike.
Great savings free delivery collection on many items. I recently had the shifter mechanism replaced for my nexus 3speed and still i cannot get first gear. With a flatblade screw driver, carefully pull out the small spring assembly. Page 1 si7bf0b service instructions page 2 the dh3nb1qr and dh3rb1qr hub dynamos are for use will damage the unit surfaces. We inspire all people to enjoy our products in their everyday lives and where they take them.
The cable activates a lever arm, which pushes a rod into the hub. This is the most common 3speed internal gear coaster hub on new bikes. Another way to tell that this is shimano is that the cable chord goes straight into the adjustment knob, which goes straight into the body of the shifter. Do not use them with any other roughly 1 minute after stopping the bicycle, the energy saving bicycles. For carrying out maintenance, the use of shimano internal geared hub. In this video i will be showing you how to adjust the gears on the shimano nexus 3 system properly. Being of a tight fisted nature, i didnt shell out sixty notes for shimano blue oil, but used some hypoid gear oil i had laying around. Maintenance is very easy as the oil can be replaced without even removing the wheel from the bicycle. The series features, for example, low maintenance by the internal geared hub and easy pedaling even while the light is on by the builtin hub dynamo. Today, were going to work on internal multi speed hubs. Shimano nexus sg8r20 8speed internally geared hub with roller brake. Shimano alfine inter 11 internal gear hub article index. Place righthand dust cap c onto the driver on the right side of the hub body. Shimano nexus 8 hub gear problems cyclechat cycling forum.
How to convert a shimano alfine 8 speed internal gear hub to oil. The gear changes are more consistent and there is not longer any play in the. However, here in minnesota, extreme temperatures can change the way grease acts, especially when youre dealing with gears only a few millimeters in diameter. If the wheel becomes stiff and difficult to turn, lubricate it. Much of the maintenance of the shimano alfine inter 11 can be done by the user. 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. Shimano nexus 3speed coaster brake internal gear hub sg. Another article on this site covers maintenance issues that apply generally to 4, 7, 8 and 11speed shimano internal gear hubs antirotation washers. The old sturmey 3 speed hubs with s2s are also a good upgrade possibility. Shimano bicycle internally geared hub parts modern bike.
Upgrade your ride with this easy to install, smooth, and durable shimano 7 speed wheel set. In addition, do not use any hub dynamos other than function is activated and the liquid crystal display turns off. The nexus 8speed system delivers a high level of design, quality and. Shimano nexus 8 premium hub problem ridemonkey forums. My bike a kettler spirit came with a shimano nexus 8 hub, one of the current sgr831 models, and i had been very happy with that. If shimano grease or a shimano lubrication kit is not used, problems such as a malfunction in gear shifting may occur. Because the nexusalfine hub is so well designed it will work with the gripshit, but you get worse shifting with more pawl skipping and slipping out of gear at intersections right out the door.
This article applies to shimano 8speed internal gear hubs only. Gear range nexus is a family of parts, of which the nexus inter 8 eight speed hub is one. For moredetailed advice on installation of sprockets and setting the gear range, see the section on sprockets in the main article on internalgear hubs. Nexus is a family of parts, but the most exciting part is the series of multispeed hubs 3, 7, 8 and 11speed versions. There is so much information about the shimano nexus inter8 hub that the. Universal cycles shimano alfinenexus internal gear hub. The purpose of the hub is to provide consistent shifting with fewer maintenance issues. Place the righthand dust cap brighthand dust cap c onto the driver on the right. Shimano nexus sg8r20 8speed internally geared hub with roller brake this hub was ridden less than one year in seattle. Also, for carrying out maintenance, the use of shimano internal geared hub. Shimano nexusalfine 3, 4, 7, 8, and 11speed technical. Gear hub label sale 2 brand rohloff 2 shimano 9 colour black 4 greysilver 4 sort. The reason its not more widespread in the bike industry is that belts cannot be used with derailleurs. Shimano alfine di2 sgs505 8speed internally geared rear hub disc brake slv 32h.
Shimano nexus and alfine eight speed internalgear hubs. Like other internal speed hubs, one gear is neutral, as if the bike were a onespeed. Im willing to bet you are in the same boat i was you own a bike with a 3c40 hub, but cannot find a lick of reliable information out there, even on shimanos own. More expensivequality internal gear hubs cost a lot of money.
As it turns out, i dropped a few right side bearings into the driver unit, then all the. Shimano rear internally geared bicycle hubs for sale. There is no standard shimano manual giving names to all these parts. The shimano 3speed hub replaces the derailleur commonly found on geared bikes. 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. I bought it on the promise of it being low maintenance but its been anything but.
Neither the shop nor shimano used enough grease and oil for nw weather. Shimano nexus 7 and 8 require a different approach which will be discussed in a future video. You change gear with a simple twist of the shimano revo gear shifter, pictured. The nexus hubs are the best choice for retrofit application with a wide gear range. However, while it is lighter than other quality geared hubs, it still adds a bit of weight to the wheel. Buy internal hub maintenance oil kit at best price order shimano hub accessories at bikediscount now. Shimano nexus inter 3 internal gear hub sg3r40 36 hole roller brake bike.
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