(Note: in at least one dealer manual, DM-S7051-02-ENG-1.pdf, labels for inner and outer locknuts are switched.) The cartridge design made it easier to replace the entire internal mechanism at once -- the usual repair. I have been using IGH's for years. A 3-speed hub will work better for you if you change the sprocket or chainwheel to lower all the gears, so you use the top gear on level terrain. A reader, Albert van Dalen, suggests a simpler solution: drilling an oil hole in the hub shell and covering it with duct tape. The Nexus hubs were not originally intended for use with bikes that have vertical dropouts. THIS WEBSITE USES COOKIES TO IMPROVE YOUR USER EXPERIENCE. 0000003845 00000 n The Nexus 3-speed bellcrank is aligned in second gear. 0000005727 00000 n We and our partners use cookies to Store and/or access information on a device. This is an very . > Please make sure that there is adequate spacing. SG-3C41. - Durability As with most other internal gear systems, Shimano uses tab washers that engage the dropout slots to keep the axle from turning. The tabs in the motor unit should be aligned as shown in the next picture. Support Us | Some of these hubs have a coaster brake, and others accept the Shimano Rollerbrake, a kind of drum brake. Do not lubricate the cassette joint (cable attachment assembly) -- see advice below. Wheel Set - Comes with both front and rear wheel. Singapore is also in the game, for parts but not for complete bikes. 0000007582 00000 n My review: Shimano has a special tool to align them, but this can also be achieved with careful clockwise rotation of the two notches in the ring shown in gray, using an adjustable pin spanner. You need two tools: an open end 10 mm wrench and you may also need a pair of pliers. 0000006205 00000 n Easy disc brake rotor installation with spline mount and lock ring; Stiff and lightweight 15 mm E-THRU skewer system; . Only shift when coasting or you will eat your IGH. The 8-speed adds lower gears for hills, with its 1:1 ratio at 4th gear. We and our partners use cookies to Store and/or access information on a device. Aaron's Bicycle Repair, in Seattle, Washington, USA, can rebuild these hubs. (B) Right-hand lock nut A I have drilled and tapped a Nexus 8-speed for a Sturmey-Archer oil cap. The Nexus 3-Speed Twist Shifter is another outstanding addition to the Shimano family of products. 0000085256 00000 n Coaster-brake models were the 3SC TC-100, 3SC TC 200 and the cartridge model 3CC. Average star voting: 5 ( 27446 reviews) If there is no photo then it didn't happen, so I will include some builds. 0000005348 00000 n Got this Nexus 3 speed with Alex Xrims 303 front and rear aluminum wheels. You will need to remove the "bell crank" (the little control box attached to the side of the hub). The fixing ring turns clockwise to lock, same as with the others. After re-installing the cog, it is a good idea to seat the circlip . Remove the cable if needed before installing the cassette joint. NEW zigmaverse.com, US $39.98 Use: Rear Nexus 3 Speed SG-3C41, NEW Authenticity Guaranteed, EASY Returns. 1. The yellow line on the paddle should be between the two yellow arrows. [Insert name here] establishes partnerships in [Other Developing Country], builds factories, teaches them how to improve their quality. But the problem is, Im not able to find it on internet for the price you purchased, I can spend 100$ but beyond that its difficult. 0000001183 00000 n The 5-speed is covered in the Nexus dealer's manual, linked below. 0000008907 00000 n Alfine hubs have the Shimano CenterLock fitting, which accepts a proprietary Shimano disc brake rotor. Widgets, Explore Front chainwheel (21 pages) Bicycle . Manage Settings Manage Settings During the Thanksgiving break, I made my first visit to the Bicycle Exchange (hallowed be its memory) in Cambridge, Massachusetts, returning with a Raleigh-pattern rim and 40 spokes to lace to a Sturmey-Archer AW hub which I had salvaged from a trash pile. Gates carbon-fiber belt drive also is available for some Nexus and Alfine hubs. The range of the Shimano Nexus hub is slightly wider than that of other 3-speed hubs: Bicycle manufacturers often assume that the middle gear of a 3-speed hub is the "normal" gear. For on-road (cruiser) bikes, this hub is nearly perfect, as weight & stopping considerations are a lot less pressing. Use this position if the rider prefers to spin at higher cadences. Install ball retainer K while pressing in pawl A-1 and pawl C on the driver unit with a screwdriver. 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. Various Nexus 3-speed models have overlocknut dimensions between 127 and 135 mm. When you get the yellow right between the two lines, go ahead and put the lock nut right up against the body of the shifter, and tighten it with the 10 mm wrench, so that adjustment stays nice and firm. 0000002084 00000 n 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. 0000002641 00000 n Set the drive unit while align the shallow side of groove of driver unit and wider portion of swelling on the clutch unit. Note: the cassette joint can be removed with the cable attached to it. Although this may not be the most affordable internal gear hub, it is very reliable, durable, and has an excellent gearing ratio. The current (2017) generation of Shimano 3-speed internal-gear hubs is available with a coaster brake or with an optional external Rollerbrake or disc brake. This is the first video in a series of gravel bike upgrades to the Retrospec Harper Coaster single speed bike. The shifter, cable, and "cow bell" parts can also come in a kit, and sometimes I have opted for the integral shifter. Sturmey Archer has a heavy duty 5 speed with coaster brake. Some 8- and 11- speed models have electrical shifting. The next country in this sequence was Taiwan, which hit stage 3 in the mid-late 1990s and is currently in stage 5. Rotate the motor unit clockwise to engage it with the axle assembly, and install locknut B, which secures the motor unit. With a reliable, internal 3-speed mechanism, the SHIMANO NEXUS SG-3C41 hub has an integral coaster brake. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. This is the Shimano shifter. On the right side of the hub, just outboard of the sprocket, there is the "cassette joint pulley" which the cable turns as the gears are changed. It may not display this or other websites correctly. It weighs 1220 grams stripped in its basic version (without built-in brake). Information on how to maintain and rebuild Nexus 3-speed hubs is in PDF documents linked below, now accessible only on the Internet Archive. However, while it is lighter than other quality geared hubs, it still adds a bit of weight to the wheel. Most other Nexus hubs are similar to the ones described. Usually 3-speeds have 1:1 in second gear. PRODUCT Here's how it goes: While Japan was in stage 1, in 1957, Shimano introduced the "333" 3-speed hub. Product info Add a review 1 Singletracks members own this. Shop for Shimano Nexus 3 Speed at Walmart.com. Thank for helping in finding the Shimano nexus 3 gear hub. Singletracks Merch | MODEL NO: HB-TC500-15: SERIES: CUES U6000 Series 10-speed: Color|1 Hub shell: Black: In some cases, it is possible to convert an existing bicycle to the use of a Nexus hub. Just lined up 2nd gear and away she went, shifting faster, crisper and better than the Nexus twist shifter. HTR@+8sP3f9R Q%Cl(g1vLrr3^kovWmu e%jm@/ Do not lubricate the cassette joint. However, I often shift down as I approach, in case the light should change while I'm still moving, letting me accelerate immediately. Register today and take advantage of membership benefits. 0000103562 00000 n startxref My Ariel Rider C class has the Shimano Nexus 7 speed. 0000008805 00000 n The cassette joint fixing ring is installed so the yellow dots line up. Copyright 2012-2022 EBR Electric Bike Review, Inc. Also operating under the name EBR. TL-LR10 for Centerlock), which in sum isn't exactly cheap. Date Submitted: 01/03/2021 06:29 AM. With the exception of the early 3-speeds, Shimano internal-gear hubs provide reasonable service if not abused. See anti-rotation washer chart. Stage 5: Increasing quality and pricing make [insert name here]'s products un-competitive with lower-wage developing [Other Developing Country]'s output. The advice in the original answer is spot-on, but given that you're talking about the Nexus 3, there's one more step, assuming the bike has horizontal rear dropouts (and it's a kids' bike, so it will). Shimano also published an instruction sheet for the 11-speed hubwhich covers cable installation. 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. Your direction, destination, time, speed, but it's not a freebie, you have to pedal for it. That makes it collect dirt and stick. The two parts easily pop apart for cleaning. No need to remove the little screws. Just gently pull. Stage 3: [insert name here]'s improved product quality is noticed, [insert name here]'s reputation rises. Japan was the prototype for this sequence. inside the 333 hub, and I felt odd, uneven resistance when pedaling. 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 Shimano Nexus Inter 3 hub laced with spokes and mounted on a bicycle. SHIMANO Nexus 3 Speed Mounting Hardware, Silver $6.99 SHIMANO Nexus Inter-3 SG-3C41 Push Rod for 168mm Axle $9.00 Customers also search Page 1 of 1 3 speed bike shifter nexus shifter 3 speed shimano shifter shimano nexus 3 twist shifter grips shimano derailleur gear 6 speed bicycle shifter bike shifter parts Product Description That makes it easy to clean the inside of the adjustment mark view window. He has tools to extract the bearing race, resurface it and replace it. File only the lower edge of the dropout slots, to avoid disturbing wheel alignment. Sometimes it happens that wheels are sold without a cog, dust cover, ring, or any mounting parts. Instructions for the 8-speed hub are very similar and begin. Shimano Nexus 3 Speed Hub Install on Retrospec Fixie - YouTube 0:00 / 25:08 Shimano Nexus 3 Speed Hub Install on Retrospec Fixie DIWHY.LIFE 5.27K subscribers Subscribe 48K views 1. Today, were going to work on internal multi speed hubs. Glenn's New Complete Bicycle Manual also has rebuilding information. The failure of a 333 hub launched my wheelbuilding career. 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. Because the shifter mechanism is between the right-side dropout and the sprocket, the chainline is desirably narrow in spite of the large overlocknut spacing of these hubs. Coaster Brake. The consent submitted will only be used for data processing originating from this website. This means the bike will stay in lower, easier pedaling gears longer as the bike picks up speed. There should be a rubber sealing ring just inside the indentation in the inner face of the motor unit. For a better experience, please enable JavaScript in your browser before proceeding. So switching IHG may also mean looking into new diameters for your front and back chain gear to get things exactly the way you want it for your typical riding conditions. It works! Alfine is a high-end product line with 8 and 11-speed hubs. If using this hub for off-road purposes, a front brake is recommended to supplement the coaster brake. The first thing you do is loosen the lock nut right up against the body of the shifter. 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. Plus, the bars look cleaner and the shifter on the downtube is old school. The rotor diameter is 180mm, not the usual 185mm, raising issues of compatibility with non-Shimano caliper assemblies. The 333 hub was much more complicated internally than the Sturmey-Archer AW. Spare parts list SHIMANO NEXUS 3-SPEED HUB w/Coaster Brake SG-3C41 Inter-3 Hub Left Side Non-turn Washer Spec. Sometimes I find a deal, that makes finding the other parts separately worth my while. The consent submitted will only be used for data processing originating from this website. The 8-speed adds lower gears for hills, with it's 1:1 ratio at 4th gear. Internal Geared Hub. The following are instructions for the 7-speed hub. The 5-speed IHG starts 1:1 in first gear and ends up with a 5th gear that is taller. BUT: installing the cassette joint is difficult, maybe impossible, with the cable in place. 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). Shopping List:Retrospec Harper Bike - http://bit.ly/3pqgfWTNexus 3-Speed - https://amzn.to/3s0cyJ0Spoke Wrench - https://amzn.to/3u3diisWheel Truing Stand - https://amzn.to/37jrgTNBike Repair Stand - https://amzn.to/37mQsbTRelated Videos:Harper Coaster Unboxing - https://bit.ly/retrospec_harperBuild a Bicycle Wheel - https://youtu.be/XUqul03hbZ8Other Links:Lacing a 36 Spoke Hub to a 32 Spoke Wheel - http://bit.ly/3u3g5Is COMPONENT . The legend for the drawing in the manual reads: (A) Right-hand lock nut B The cassette joint is installed either of two ways, so the red dots line up. The Nexus 3spd hub is relatively inexpensive, and will afford multiple gear choices on a bike that is unable to mount a standard derailleur. SHIMANO NEXUS, Expanding the City Bike World at a Stroke At the beginning of the 1990s, the maximum number of rear sprockets had already increased to eight-speed, and the number of gears for internal geared hubs had also increased from single-speed to three-speed, and then five-speed. I find that shifting is very quick and easy, and I love being able to shift at an intersection while at a standstill. Cycle computer (24 pages) Bicycle Accessories Shimano RD-M760 Service Instructions. Cable-operated and hydraulic disc brakes are available. (Earlier Nexus hubs only used an anti-rotation washer on the right side, but newer models use a pair of them, each a mirror image of the other.). 0000096065 00000 n