Live better The 11-speed is oil-lubricated. (Note: in at least one dealer manual, DM-S7051-02-ENG-1.pdf, labels for inner and outer locknuts are switched.) 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, California Transparency in Supply Chain Act. 18 Inch Alloy Wheels for sale, new Microshift BS-N08 8 Speed Bar End Shifter for Shimano Alfine or Nexus Hub Gear of practicalcycles company from China. Hold the left hand cone, and then remove the lock nut for left hand cone. 0000101707 00000 n 0000085010 00000 n The Nexus 3-speed bellcrank is aligned in second gear. Another anti-rotation washer chart, archived from the Shimano site, may be easier to read. 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. The 5-speed IHG starts 1:1 in first gear and ends up with a 5th gear that is taller. It could be that you have a kink or rough spot in your shift cable housing. Your direction, destination, time, speed, but it's not a freebie, you have to pedal for it. Hold the two bevelled surfaces of the hub axle on the driver side in a vice. Nexus 3, 4, 7- and 8-speed internal gear systems may incorporate all-weather braking systems. The smaller-diameter side faces inward. Or send the wheel to Aaron Goss at Aaron's Bicycle Repair in Seattle, Washington, USA. 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. The combination of design and metallurgy of the Shimano 333 hub was probably adequate for the needs of the Japanese market, but when sold in the U.S., the hub acquired a reputation for unreliability. . 3. The 333 hub was much more complicated internally than the Sturmey-Archer AW. document.write(document.lastModified) The photos below show the steps in installation of the cassette joint on an 8-speed hub. You need two tools: an open end 10 mm wrench and you may also need a pair of pliers. Register today and take advantage of membership benefits. 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. When a Sturmey-Archer hub gives problems, it can almost always be repaired, usually without needing any parts replacement. Older bicycles are typically narrower than that. 0000056270 00000 n That makes it easy to clean the inside of the adjustment mark view window. Installation instructions for this hub. Japan was the prototype for this sequence. The most counter-clockwise setting will delay shifting. The cassette joint fixing ring is installed so the yellow dots line up. Product info Add a review 1 Singletracks members own this. Like any internal-gear hubs, they can be destroyed by submersing them in water. 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). 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 8-speed adds lower gears for hills, with its 1:1 ratio at 4th gear. The low and middle gears are then better for acceleration and climbing, too. DISCONTINUED PRODUCTS, SHIMANO SERVICE CENTER | MANUALS & TECHNICAL DOCUMENTS | DISCONTINUED PRODUCTS, Privacy Policy | Cookies Preferences | Terms of Use | Legal info. It is usually possible to spread the rear triangle of a steel (Cromoly) frame to the needed width. (The bigger part is downside.) Internal-gear hubs always require some system to prevent the axle from rotating, as it is used as part of the gear train. Japanese bicycles have not been imported to the U.S. in significant number since then, though high-end, high-value Japanese-made parts are still somewhat available. Priority Current Shimano 5 speed - First impressions. By changing the sprocket, you can raise or lower all of the gears at once. Sometimes it happens that wheels are sold without a cog, dust cover, ring, or any mounting parts. Other than that, installation is similar to that of other cassette joints. Cassette joint parts are the same for the 4- and 7-speed hubs; different for the 5 and 8-speed hubs; different again for the 11-speed hubs. A larger sprocket requires a longer chain. Most Shimano 3-speeds use a bellcrank and pushrod for shifting, rather than a pulley concentric with the axle. 0000000016 00000 n I like the 23-tooth from Shimano (Japan), and the 24-tooth from Sturmey Archer (England); a member makes a shimano-compatible 11-tooth, for 3/16 skip-tooth chains. > COMPONENT The diameter of the hub was smaller, and so stresses on the internal parts were higher. The consent submitted will only be used for data processing originating from this website. Before installing the anchor bolt (which Shimano calls the "inner cable fixing bolt unit"), set the shifter in the loosest cable position. Copyright 2012-2022 EBR Electric Bike Review, Inc. Also operating under the name EBR. For a better experience, please enable JavaScript in your browser before proceeding. The cartridge design made it easier to replace the entire internal mechanism at once -- the usual repair. File only the bottom of the slots, so you can be sure that the axle sits straight. Guarantee Pay secure BEST PRICE GUARANTEE The best-selling product NEXUS 3 SPEED COASTER HUB PARTS SHIMANO SG-3C41. HTR@+8sP3f9R Q%Cl(g1vLrr3^kovWmu e%jm@/ (Thanks to Aaron Goss for this info!). Stage 2: Developing country of [insert name here] decides to move into higher-quality, higher-value production. In some cases, it is possible to convert an existing bicycle to the use of a Nexus hub. Stage 4: [insert name here]'s high wages and shifting exchange rates begin to erode the competitive pricing advantage formerly enjoyed. This is the Shimano shifter. The next country in this sequence was Taiwan, which hit stage 3 in the mid-late 1990s and is currently in stage 5. Fichtel & Sachs in Germany (now a part of SRAM) has also made reliable internal-gear hubs since early in the 20th Century. > See this document describing differences. You need to select washers for your particular frame. Continue with Recommended Cookies, This article gathers information common to many models of Shimano internal-gear hubs. (The Columbia's original rim had 36 spokes). The metallurgy of Japanese steel at that time was not up to the standards of British steelmaking, so the parts were weaker. 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. Shimano is the #1 brand in cycling parts, especially shifters, derailleurs, sprockets and brakes. When an older Shimano 3-speed hub fails, it is most often because one of the under-engineered pawls has shattered. 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. 0000008907 00000 n