The 5-speed IHG starts 1:1 in first gear and ends up with a 5th gear that is taller. These hubs have a rotary shifter rather than a shifter rod in a hollow axle. The smaller-diameter side faces inward. 0000001443 00000 n 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. If the bearing cup becomes pitted, you have two alternatives: replace the hub shell -- then it is usually most practical to replace the entire wheel. Comfy Bike Seat Unboxing & Review. Date Submitted: 01/03/2021 06:29 AM. 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. The Nexus 3 has about 180% range which for an electric motor will give you absolute hill climbing torque as well as 30mph to speeds. Even if you could find a source of parts, you might not get the correct generation of parts for the particular hub you have. You need two tools: an open end 10 mm wrench and you may also need a pair of pliers. Glenn's New Complete Bicycle Manual also has rebuilding information. The hub may still work after a fashion, so the rider continues to use it until the broken fragments of the pawls have gone on to destroy the gears and other parts, making the hub basically irreparable. The 5-speed is covered in the Nexus dealer's manual, linked below. The motor unit can install either of two ways. The photos below show the steps in installation of the cassette joint on an 8-speed hub. Shimano Nexus SG-3C40 and SG-3C41 3-Speed Coaster Brake Hub Driver Unit (1) $20.33 Was: $26.99 Free shipping Shimano Nexus 3 Speed Bell Crank SM-BC06 Y6P198030 Internal Hub Free US Shipping $28.77 Was: $119.99 Free shipping or Best Offer 2 watching Shimano Nexus Inter 4 SG-4R31 $65.00 Free shipping In this video, I'll 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). The tabs in the motor unit should be aligned as shown in the next picture. You may check your work using an anti-rotation washer: if the tab of the washer fits, the axle will fit. Usually 3-speeds have 1:1 in second gear. 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 See his Web page for advice. 0000002084 00000 n 0000002689 00000 n 5. Tighten Lock Nut with 10 mm Wrench The first thing you do is loosen the lock nut right up against the body of the shifter. With the 8-speed, however, the marks you need to line up are yellow, not red. - First gear isn't low enough, especially without a granny-gear chainring. 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 Front chainwheel (21 pages) Bicycle . You'll need to get the stuff shown above to set it up. The 8L and 8R may be useful with forward-facing dropouts if you would like to run the cable up a seatstay. 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. startxref 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. Cycling Equipment; Bicycle Tires, Tubes & Wheels; 0000008805 00000 n The ring clips come in rounded or squared spring wire, either will work. 2. Install it if necessary. Note: Do not damage the threads of the hub axle. I have been using IGH's for years. Only shift when coasting or you will eat your IGH. Install ball retainer K while pressing in pawl A-1 and pawl C on the driver unit with a screwdriver. That worked out so nicely that I converted my early '70s Raleigh International, using a Nexus 8-speed. Most Shimano 3-speeds use a bellcrank and pushrod for shifting, rather than a pulley concentric with the axle. You want to line that yellow between the two lines with the adjustment knob. Or you can leave the rotor off, install the supplied cover for the CenterLock fitting, and use a rim brake. Use a flat tipped screwdriver such as the SD-3 to turn the dial. Please make sure that there is adequate spacing. That makes it easy to clean the inside of the adjustment mark view window. Reached stage 2 in the late 1970s, stage 3 in the early 1980s, stage 4 in the mid 1980s, Stage 5 in the late 1980s and stage 6 by the early 1990s. Japan was the prototype for this sequence. Singapore has no important independent bicycle parts manufacturers, but Japanese parent companies, especially Shimano, own extensive production facilities there. It may not display this or other websites correctly. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); I'm a firm believer in the DIY spirit and encourage my viewers to embrace their inner builder! The dropouts of an older three-speed bicycle will need to be widened to fit these hubs. k(3001(&U6CVF!i50'n`#u)/oatu\F@ )X&@ V Information on how to maintain and rebuild Nexus 3-speed hubs is in PDF documents linked below, now accessible only on the Internet Archive. The following are instructions for the 7-speed hub. It could be that you have a kink or rough spot in your shift cable housing. (B) Right-hand lock nut A 38 0 obj <>stream Save money. The shifter, cable, and "cow bell" parts can also come in a kit, and sometimes I have opted for the integral shifter. . Hi Akash, during the pandemic there was definitely a shortage of options as people were buying them up to upgrade their bikes. Loosen that and it allows the adjustment knob to be free. Next, remove the left hand cone. Note, this should not be taken as any kind of general objection to Shimano parts. Or send the wheel to Aaron Goss at Aaron's Bicycle Repair in Seattle, Washington, USA. ;-). The most counter-clockwise setting will delay shifting. This is the first video in a series of gravel bike upgrades to the Retrospec Harper Coaster single speed bike. 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. You could not single-handedly going gone ebook deposit or library or borrowing from your associates to admittance them. The Rollerbrake also is somewhat prone to overheat, though the newer high-power model is less so, with its finned heat sink. Coaster-brake models were the 3SC TC-100, 3SC TC 200 and the cartridge model 3CC. <]/Prev 250097>> Installation instructions for this hub. Any good bicycle mechanic will be able to do this, or you can do it yourself. As mentioned, the two regular over-run ratchets are still in place. 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. Major bicycle producing countries still stuck in stage 1 include India and South Korea. THIS WEBSITE USES COOKIES TO IMPROVE YOUR USER EXPERIENCE. 0000032359 00000 n Color: Silver. The AW hub never gave me any trouble,. I have a very nice 1970's Raleigh Competition racing frame which I converted into a Nexus 7-speed: Sheldon Brown's Nexus Raleigh Competition. The Nexus hubs were not originally intended for use with bikes that have vertical dropouts. Note, only the eccentric bottom bracket, not the chain tensioner or rear derailer, will work with the coaster brake version of the Nexus hub, because backpedaling places the lower run of the chain under high tension. It weighs 1220 grams stripped in its basic version (without built-in brake). 0000001183 00000 n Do not lubricate the cassette joint. HOME 4. Attachments 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. The following are instructions for the 4- and 7-speed hubs. For either purpose, the low gear is still not low enough for anything but tiny inclines. The driver cap snaps on, concave side down. 0000096302 00000 n Install the ball retainer P (3/16"X13). Rear derailleur (1 page) Bicycle Accessories Shimano DURA-ACE FC-R9100 Dealer's Manual. Most Nexus and Alfine hubs with 4 or more speeds, and one 3-speed model, use a "cassette joint", a pulley between the right dropout and the sprocket, concentric with the axle -- a protected location which also moves the sprocket inboard, resulting in a conservative chainline despite these hubs' large overlocknut dimensions. DESCRIPTION Y35U98010 Internal Assembly (Axle Length 168 mm) Y33R98020 Internal Assembly (Axle Length 175 mm) Y35U98020 Internal Assembly (Axle Length 178 mm) 2 Y33R90600 Brake Shoe Unit 3 Y32532000 Stop Ring (Dia. 31 17 18 Internal Hub Grease 19 (For coaster brake also) 1 16 . 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. Shifter and cable included. It is usually possible to spread the rear triangle of a steel (Cromoly) frame to the needed width. (Thanks to Aaron Goss for this info!). 0000085256 00000 n Today, were going to work on internal multi speed hubs. Newer, similar models are the F, FA and G type and the cartridge type, which had a pressed-in right-side ball cup instead of a threaded ball cup. Most sprockets made for this system are "dished" so you can adjust the chainline by flipping the sprocket over. For a better experience, please enable JavaScript in your browser before proceeding. SG-3R75-A. 0000005348 00000 n This will be even more of an issue if you have one of the original 8GB Nexus 7's, which doesn't give you much wiggle room for storage space. Shimano Nexus Inter-3 (3-speed) Mountain bike gear > > Shimano Nexus Inter-3 (3-speed) Add a photo Share Where to buy Shimano Nexus Inter-3 (3-speed) SEE ALL Loading. Shimano sells cable-operated shifters for these hubs only for flat handlebars, but aftermarket (JTek, Microshift) shifters and a Hubbub adapter are available to fit drop bars. The Rollerbrake is a separate module, and when you buy the hub it is not even installed. Hold the two bevelled surfaces of the hub axle on the driver side in a vice. Driver Vice 4. 0000056509 00000 n MODEL NO: HB-TC500-15: SERIES: CUES U6000 Series 10-speed: Color|1 Hub shell: Black: 120/127.4 mm - 3-speed. Gear Adjustment-all cable-operated Nexus and Alfine 4-, 7-, 8- and 11-speeds: Adjustment is made with the shifter in 4th gear for the 4, 7- and 8-speed hubs, 6th gear for the 11-speed hub. I've had no reason to disassemble, clean and re-lube the gear set within the hub as the miles I have on the bike do not merit that kind of service, yet. The motor unit for a hub with electrical shifting is installed with both the hub and the motor unit in first-gear position. I like the Nexus 8-speed a lot better than the 7-speed version. 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. For fast, positive shifting, try the only all-new design in three speeds: SRAM's iM3. 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. Coaster-brakes, however, cannot be oil-lubricated; they must be lubricated with a special high-temperature grease. SHIMANO CODE NO. PRODUCT Various Nexus 3-speed models have overlocknut dimensions between 127 and 135 mm. The cassette joint is installed either of two ways, so the red dots line up. 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. 0000006787 00000 n The fixing ring turns clockwise to lock, same as with the others. Shimano has reconsidered, however, and now makes available an optional set of anti-rotation washers that work with vertical dropouts. NEXUS INTER3, SHIMANO SERVICE CENTERS The Alfine 11-speed is oil-lubricated, but the other Nexus and Alfine hubs are packed with a special grease as sold. Just lined up 2nd gear and away she went, shifting faster, crisper and better than the Nexus twist shifter. [Insert name here] establishes partnerships in [Other Developing Country], builds factories, teaches them how to improve their quality. Before installing the anchor bolt (which Shimano calls the "inner cable fixing bolt unit"), set the shifter in the loosest cable position. They fudge a bit, lowering the gears in order to keep the top gear from being completely useless, but then the middle gear is too low for level-ground riding. Following behind Taiwan is mainland China, currently (2006) in stage 3. document.write(document.lastModified) Usually I get my parts by dismantling complete bikes so small parts come along with. 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. In some cases, it is possible to convert an existing bicycle to the use of a Nexus hub. The labels are corrected in the image below.). Some of our partners may process your data as a part of their legitimate business interest without asking for consent. SG-3C41. More expensive rohloff leaks. The Nexus 3-speed bellcrank is aligned in second gear. 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: As with most other internal gear systems, Shimano uses tab washers that engage the dropout slots to keep the axle from turning. Information about specific models is in the articles about. #1 out of 0 Brand: Shimano I Have One! Older bicycles are typically narrower than that. SG-3C41, SHIMANO NEXUS - Internal Geared Rear Hub - Coaster Brake - O.L.D. Some hubs use electrical ("Di2") shifting, with a motor unit between the right-side dropout and sprocket. We and our partners use cookies to Store and/or access information on a device. Use this position if the rider prefers to spin at higher cadences. Sometimes it happens that wheels are sold without a cog, dust cover, ring, or any mounting parts. Relubrication using oil and waterproof grease is highly recommended to keep water out of the mechanism. Instructions for the 8-speed hub are very similar and begin. Shimano Nexus 3, 4, 5, 7 and 8-speed hubs are presently in production as of 2014. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. It may not display this or other websites correctly. Stage 4: [insert name here]'s high wages and shifting exchange rates begin to erode the competitive pricing advantage formerly enjoyed. Some high-end production for the domestic market may continue. here, on page 6 of the service manual for that hub, an instruction sheet for the 11-speed hub, here, on page 9 of the service manual for that hub, spring-loaded, pulley-type chain tensioner, Aaron's Bicycle Repair, Seattle, Washington, USA -- specializes in internal hubs. > Alfine hubs have the Shimano CenterLock fitting, which accepts a proprietary Shimano disc brake rotor. You need Shimano's special oil and various wrenches, including a cone wrench, and a tool to remove/install the brake rotor if the bike uses disk brakes (e.g. The 5-speed IHG starts 1:1 in first gear and ends up with a 5th gear that is taller.
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