Sprocket and sprocket circlip are installed before the cassette joint parts. The cassette joint is installed either of two ways, so the red dots line up. Adjustment is made with the shifter in 4th gear for the 4, 7- and 8-speed hubs, 6th gear for the 11-speed hub. Singletracks Merch | When a Sturmey-Archer hub gives problems, it can almost always be repaired, usually without needing any parts replacement. 0000001443 00000 n Shimano Nexus Inter 3 hub laced with spokes and mounted on a bicycle. This means the bike will stay in lower, easier pedaling gears longer as the bike picks up speed. Of course, I am old and weak and feel no need to go faster than 20 mph. You will see there are two lines in the window of the shifter and there is a piece inside that has a little yellow indicator. Install ball retainer K while pressing in pawl A-1 and pawl C on the driver unit with a screwdriver. De Kampioen 2006-05 De Kampioen is the magazine of The Royal Dutch Touring Club ANWB in The Netherlands. Install the ball retainer P (3/16"X13). Next to this is the "cassette joint bracket" which is stationary. I usually get a separate larger cog/sprocket anyway. Front chainwheel (21 pages) Bicycle . MANUALS & TECHNICAL DOCUMENTS if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[728,90],'sheldonbrown_com-large-leaderboard-2','ezslot_4',822,'0','0'])};__ez_fad_position('div-gpt-ad-sheldonbrown_com-large-leaderboard-2-0'); Last Updated: MTB Podcast | 0000000016 00000 n TL-LR10 for Centerlock), which in sum isn't exactly cheap. Shimano has reconsidered, however, and now makes available an optional set of anti-rotation washers that work with vertical dropouts. associate to purchase and make bargains to download and install shimano nexus 7 correspondingly simple! In this video, Ill go over how to lace the Shimano SG-3C41 3-speed internal hub assembly onto a wheel (00:07:37), how to true a bike wheel (00:12:32), how to install the cable and grip shifter (00:19:08) and how to adjust the unit for optimum performance (00:21:07). COMPONENT If you leave off the Rollerbrake , you can get the spacing down to about 124 mm. Japan was the prototype for this sequence. Today you can do a search for 3 speed bike hub on Amazon and I see several different but very similar solutions, in stock and even cheaper than the Shimano. The cable engages the pulley at the top instead of the bottom with these hubs, and the cassette joint looks like the one in the picture below. But at second glance you realize it can be paired with VEER's Split Belt to solve one of belt drive's biggest issues, belt alignment. The 1936 Sturmey-Archer AW hub became the standard of the industry for the next 60 years or more. Aaron's Bicycle Repair, in Seattle, Washington, USA, can rebuild these hubs. With these hubs, the orientation of the axle does not affect shifting, and oil lubrication is possible by removing the bellcrank and pushrod, then squirting oil into the hollow end of the axle. Something went "crack!" The photos below show the steps in installation of the cassette joint on an 8-speed hub. Installation instructions for this hub. UM User's Manual SI Service Instructions EV Exploded View QM Quick Manual SM Service Manual Currently available manuals and technical documents from Shimano are posted on this site. The 6R and 6L also may be used on the "wrong" sides of the hub for the best cable alignment with some bicycles. You may check your work using an anti-rotation washer: if the tab of the washer fits, the axle will fit. 31 17 18 Internal Hub Grease 19 (For coaster brake also) 1 16 . Both the pulley and the bracket have index marks, and gear adjustment is correct when the marks on the two parts align with the shifter in 4th gear (6th gear on the 11-speed). SG-3D55. A larger sprocket requires a longer chain. 6 33 0000101942 00000 n The Nexus 3-Speed Twist Shifter is another outstanding addition to the Shimano family of products. (Thanks to Aaron Goss for this info!). The Shimano Nexus SG-C3000-7R 7-Speed comes with 2 cogs (19t/21t), 3 size chainstay clamps, 3 sets of non-turn washers, hub nuts, and cassette joint (axel). With most of the hubs which use a cassette joint, the cable is tightest in top gear; the 11-speed hubs and the SG-7000 and SM-7000 8-speed Alfine hubs pull the cable tightest in the lowest gear. NEXUS 3-speed Hub w/Coaster Brake SG-3C41 Inter-3 Hub Left Side Non-turn Washer Spec. Now youre done. 0000002641 00000 n 0000003845 00000 n I dont know what youve decided, but if you are still weighing options the Shimano 5e manual has a chart showing the e-bike 5 speed ratio vs the 8-speed. Torque on the axle from the gear train is relatively low, and so the bellcrank-shifting hubs use only one non-turn washer, at the left side. I'd dig around in all the parts to see if they were put in a safe place. Looks like this right now (no mounting hardware, cog or shift mechanism.). The circlip can be pried off with a thin flat-blade screwdriver, and the sprocket can then be lifted off. The cartridge design made it easier to replace the entire internal mechanism at once -- the usual repair. Add to another list Rider questions Rating Review Reviews Also see our article about derailerless drivetrains. #13 and #14 spoke compatible; FIND A DEALER. They love that stuff. After re-installing the cog, it is a good idea to seat the circlip . Got this Nexus 3 speed with Alex Xrims 303 front and rear aluminum wheels. With any of these brakes, a front brake also should be installed -- see my article about braking and turning. 0000006049 00000 n hb``c``d``` Turn it clockwise to lock it. With a reliable, internal 3-speed mechanism, the SHIMANO NEXUS SG-3C41 hub has an integral coaster brake. 0000056270 00000 n That makes it easy to clean the inside of the adjustment mark view window. 1. The photo below shows cassette joint parts for a 5 or 8-speed hub, from left to right, the driver cap, cassette joint and cassette joint fixing ring. Remove the hub shell. Save money. To replenish oil between rebuilds, you must either unscrew the left bearing cone (which requires removing the wheel from the bicycle) or else add an oiling port, such as a Sturmey-Archer oil cap. The axle flats and washer tab are not in line with each other, as with Sturmey-Archer and Sachs/SRAM hubs, and so you may have to file the dropout slots of an older bicycle to fit a Nexus hub. Installation of this hub is already complicated enough! Other versions include coaster, roller or disk brake. Now, the first thing you want to do is go up to the shifter on the handlebar and put it into second gear, the middle gear. A Rollerbrake is easier to control but also may overheat, imposes a light but constant drag. Stage 2: Developing country of [insert name here] decides to move into higher-quality, higher-value production. 30T (as delivered), 27T and 24T. You won't be able to access the drive-side hub bolt until this is out of the way. I have also owned and used 7 speeds and 8 speeds. We use cookies to ensure that we give you the best experience on our website. password. Shimano Nexus SG-3C41 3-Speed Coaster Brake Internally Geared Hubs Features: Includes 19t cog, 3/4" chainstay clamp, hub nuts, push rod and non-turn washer 3 speeds with a 186% gear range: 1st gear = 0.733, 2nd gear = 1.00 (direct drive), 3rd gear = 1.36 3-Speed Nexus Shifter not included Got this Nexus 3 speed with Alex Xrims 303 front and rear aluminum wheels. Cycling Equipment; Bicycle Tires, Tubes & Wheels; If you unscrew everything that is screwed onto the left end of the axle, the whole mechanism can be pulled out of the right side as a unit. Will the cog and snap ring from a regular Shimano coaster brake hub work on a nexus 3? 9 mm) 4 Y33R90700 Carrier Unit 5 Y33R90800 Ring Gear Unit See the separate articles on this site about disc brakes, coaster brakes and Rollerbrakes. The Rollerbrake also is somewhat prone to overheat, though the newer high-power model is less so, with its finned heat sink. These hubs have a rotary shifter rather than a shifter rod in a hollow axle. Most sprockets made for this system are "dished" so you can adjust the chainline by flipping the sprocket over. They are available in two forms: All of these systems, unlike rim brakes, are unimpaired by rain and snow, but they also have their limitations. Usually 3-speeds have 1:1 in second gear. Manage Settings Best MTB Gear | (Most frames can flex about .5" to fit) Ideally, the frame should have a dropout spacing of 127 to 135 mm to fit one of the Nexus hubs. In addition to juhist's answer: Re-greasing the hub is possible, but messy. Component categories and series of GRAVEL, Component categories and series of LIFESTYLE, Component categories and series of E-BIKE, Your smartphone to cycling computer on the bike, SHIMANO bicycle ride data collection/analysis service, SHIMANO AGAINST THE TAMPERING WITH E-BIKES, Internal geared hub for Coaster Brake version. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Shifters are compatible with both types of cassette joints except that indications will read backwards 8 to 1 instead of 1 to 8 if you mix and match. Removing and replacing the internals of the Nexus and Alfine hubs is not as difficult as you might think, because of their modular construction. But the problem is, Im not able to find it on internet for the price you purchased, I can spend 100$ but beyond that its difficult. When the 16GB Nexus 7 gets to about 3GB of storage space left, it begins to slow down. The best information available on these hubs -- including comparative parts lists -- is in Sutherland's Handbook of Coaster Brakes and Internally-Geared Hubs, which is now online on this site. Stage 6: [Insert name here] can no longer manufacture bicycle parts at a competitive price, more and more manufacturing for export is shifted to [Other Developing Country]. Before installing the anchor bolt (which Shimano calls the "inner cable fixing bolt unit"), set the shifter in the loosest cable position. Hold the two bevelled surfaces of the hub axle on the driver side in a vice. When a Sturmey-Archer AW hub gives trouble (which it rarely does) it is usually due to lack of lubrication, and one or two of the gears stop functioning reliably. - First gear isn't low enough, especially without a granny-gear chainring. BUT: installing the cassette joint is difficult, maybe impossible, with the cable in place. the section on sprockets in the main article on internal-gear hubs. See our Rollerbrake page for information on installing and removing the Rollerbrake. k(3001(&U6CVF!i50'n`#u)/oatu\F@ )X&@ V - Mediocre power coaster brake US $399.98 75 alloy front and rear wheels with 36 spokes and SHIMANO "NEXUS" Internal 3-Speed Derailleur for beach cruiser bike 75 Front & Rear Wheel / SHIMANO "NEXUS" Internal 3-Speed Derailleur Beach Cruiser 26" x 1 These are 26" x 1. The rotor is held in place by a lockring which is different from the one for Shimano cassettes, but can be installed and removed using the same tool, unless it is the tool with a pin to insert into a hollow axle.