These hubs have a rotary shifter rather than a shifter rod in a hollow axle. As with most other internal gear systems, Shimano uses tab washers that engage the dropout slots to keep the axle from turning. After re-installing the cog, it is a good idea to seat the circlip . trailer Shop for Shimano Nexus 3 Speed at Walmart.com. 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. Please suggest me if there is another hub I can find or where I can find the Shimano nexus hub. Loosen that and it allows the adjustment knob to be free. If there is no photo then it didn't happen, so I will include some builds. Mountain Bike Deals, Copyright 2023 Blue Spruce Ventures LLC | You need two tools: an open end 10 mm wrench and you may also need a pair of pliers. The circlip snaps on, also most easily by levering it into position with a flat-blade screwdriver. This is the first video in a series of gravel bike upgrades to the Retrospec Harper Coaster single speed bike. The consent submitted will only be used for data processing originating from this website. There should be a rubber sealing ring just inside the indentation in the inner face of the motor unit. 9 mm) 4 Y33R90700 Carrier Unit 5 Y33R90800 Ring Gear Unit Ideally, the frame should have a dropout spacing of 127 to 135 mm to fit one of the Nexus hubs. IMBA Epics | Singapore has no important independent bicycle parts manufacturers, but Japanese parent companies, especially Shimano, own extensive production facilities there. 0000056509 00000 n 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. As mentioned, the two regular over-run ratchets are still in place. 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. Note: Do not damage the threads of the hub axle. %PDF-1.4 % 0000001443 00000 n > After-market non-turn washers are available, and various color codes are confusing, but I like the OEM steel (yellow) washer which takes-up less threads on the short axles; (like to have room for attaching rack or fender). File only the lower edge of the dropout slots, to avoid disturbing wheel alignment. 0000006049 00000 n Best of luck! BUT: installing the cassette joint is difficult, maybe impossible, with the cable in place. Best Bike Trails | The Nexus 3-speed bellcrank is aligned in second gear. This is especially the case if a hub has a coaster brake, due to the heat this brake generates. It may not display this or other websites correctly. Please make sure that there is adequate spacing. #1 out of 0 Brand: Shimano I Have One! Your direction, destination, time, speed, but it's not a freebie, you have to pedal for it. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Another anti-rotation washer chart, archived from the Shimano site, may be easier to read. Widgets, Explore 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. 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. Next, remove the left hand cone. MODEL NO: HB-TC500-15: SERIES: CUES U6000 Series 10-speed: Color|1 Hub shell: Black: For a better experience, please enable JavaScript in your browser before proceeding. ;-). Usually 3-speeds have 1:1 in second gear. 0000002689 00000 n Hub is already built into the rear wheel. Wheel Set - Comes with both front and rear wheel. Relubrication using oil and waterproof grease is highly recommended to keep water out of the mechanism. PRODUCT The 8L and 8R may be useful with forward-facing dropouts if you would like to run the cable up a seatstay. A coaster brake can easily skid the rear wheel, but is hard to control and overheats on long downhill runs. It is usually possible to spread the rear triangle of a steel (Cromoly) frame to the needed width. SHIMANO CODE NO. Note, this should not be taken as any kind of general objection to Shimano parts. About Us | Product information Technical Details Additional Information Feedback Would you like to tell us about a lower price? xref 6 33 This means the bike will stay in lower, easier pedaling gears longer as the bike picks up speed. > Or send the wheel to Aaron Goss at Aaron's Bicycle Repair in Seattle, Washington, USA. NEW zigmaverse.com, US $39.98 Use: Rear Nexus 3 Speed SG-3C41, NEW Authenticity Guaranteed, EASY Returns. <]/Prev 250097>> With any of these brakes, a front brake also should be installed -- see my article about braking and turning. COMPONENT For off-road use, multiple chainrings are recommended for versatility and increased climbing power, especially if being fitted to a vintage klunker. With a reliable, internal 3-speed mechanism, the SHIMANO NEXUS SG-3C41 hub has an integral coaster brake. We and our partners use cookies to Store and/or access information on a device. Alfine is a high-end product line with 8 and 11-speed hubs. Not sure if Nexus uses an odd 3/8-24tpi thread axle/nut (not 26?). Removing and replacing the internals of the Nexus and Alfine hubs is not as difficult as you might think, because of their modular construction. In some cases, it is possible to convert an existing bicycle to the use of a Nexus hub. 0000007582 00000 n Glenn's New Complete Bicycle Manual also has rebuilding information. You will need to remove the "bell crank" (the little control box attached to the side of the hub). Looks like this right now (no mounting hardware, cog or shift mechanism.). 0000032627 00000 n 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. 3. SG-3C41, SHIMANO NEXUS - Internal Geared Rear Hub - Coaster Brake - O.L.D. More information about oil lubrication is in the main file about internal-gear hubs. File only the lower edge of the dropout slots, to avoid disturbing wheel alignment. I have also owned and used 7 speeds and 8 speeds. See his Web page for advice. That makes it easy to clean the inside of the adjustment mark view window. It should also not be taken as a general indictment of Shimano's internal-gear hubs. SG-3R75-B. In the case of steel (Cromoly) frames, it is usually possible to spread the rear triangle to the needed width. 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. startxref See anti-rotation washer chart. Cable-operated and hydraulic disc brakes are available. Of course, I am old and weak and feel no need to go faster than 20 mph. 0000101942 00000 n You'll need to get the stuff shown above to set it up. 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! Even if you could find a source of parts, you might not get the correct generation of parts for the particular hub you have. A disc brake requires the bicycle frame to have h a special fitting for the caliper assembly. #13 and #14 spoke compatible; FIND A DEALER. password. A Rollerbrake is easier to control but also may overheat, imposes a light but constant drag. 0000006205 00000 n Major Western European countries hit stage 6 in the late '70s, just as Japan was moving into stage 3. Either way is OK: you will rotate the axle when installing the wheel so the electrical connection faces forward. You may check your work using an anti-rotation washer: if the tab of the washer fits, the axle will fit. 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. Except with vertical dropouts, the tab should preferably face the closed end of the dropout slot, for better engagement. 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. Quality control and design improve, often benefiting from the advice of partners in more developed countries. Comfy Bike Seat Unboxing & Review. The Rollerbrake is a separate module, and when you buy the hub it is not even installed. 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. Over the years when the 333 hub and its successors were in production, Shimano made a number of revisions to the design in an attempt to make them more reliable. With the 8-speed, however, the marks you need to line up are yellow, not red. Place the motor unit over the end of the axle so that marks on it line up with marks on a spacer inboard of locknut B, as shown in the image below. Shimano Nexus 3, 4, 5, 7 and 8-speed hubs are currently in production as of 2022. The motor unit can install either of two ways. 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/37mQsbT, Related Videos:Harper Coaster Unboxing https://www.diwhy.life/retrospec-harper-bike-review/Build a Bicycle Wheel https://youtu.be/XUqul03hbZ8Other Links:Lacing a 36 Spoke Hub to a 32 Spoke Wheel http://bit.ly/3u3g5Is. Be careful not to install it upside-down. Sometimes it happens that wheels are sold without a cog, dust cover, ring, or any mounting parts. If you leave off the Rollerbrake , you can get the spacing down to about 124 mm. This is an very . Shimano Nexus 3-Speed Hub Installation by walker hicks | Feb 16, 2021 | 0 comments Shimano Nexus 3 Speed Hub Install on Retrospec Fixie Watch on This is the first video in a series of gravel bike upgrades to the Retrospec Harper Coaster single speed bike. You must log in or register to reply here. The cassette joint is installed either of two ways, so the red dots line up. The shifter, cable, and "cow bell" parts can also come in a kit, and sometimes I have opted for the integral shifter. 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. Replacing that and going with loose gradual housing curves should do the trick. > HOME Sometimes you will need a wrench to move it. The cartridge design made it easier to replace the entire internal mechanism at once -- the usual repair. That worked out so nicely that I converted my early '70s Raleigh International, using a Nexus 8-speed. I installed this IGH on my Sun Kiss build and was very happy with the final results, although it took some work and a lot of head banging to get there. For a better experience, please enable JavaScript in your browser before proceeding. > He has tools to extract the bearing race, resurface it and replace it. 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. %%EOF For fast, positive shifting, try the only all-new design in three speeds: SRAM's iM3. Mechanical problems can result from "preventive maintenance" including re-lubrication with incorrect grease. Remove the cable if needed before installing the cassette joint. Shimano Nexus 3-Speed Hub Installation - DIWHY.LIFE. Stage 3: [insert name here]'s improved product quality is noticed, [insert name here]'s reputation rises. It was in many ways an innovative design, and managed to avoid infringing on Sturmey-Archer's patents, but it had problems. SG-3C41. 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. The Nexus 3-speed bellcrank is aligned in second gear. Or you can leave the rotor off, install the supplied cover for the CenterLock fitting, and use a rim brake. The sprocket is held in position by a spring circlip (snap ring). 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. Product quality is noticed, [ insert name here ] 's improved product quality is noticed, [ name... Set - Comes with both front and rear wheel is difficult, maybe impossible, with the,! Hubs have a rotary shifter rather than a shifter rod in a hollow axle adjustment mark view.! The two regular over-run ratchets are still in place you leave off the Rollerbrake, you to... Shimano Nexus hub it 's not a freebie, you can leave rotor. 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More information about oil lubrication is in the main file about internal-gear hubs will stay in lower, pedaling. Either way is OK: you will rotate the axle when installing the wheel to Aaron Goss at Aaron Bicycle! Some builds $ 39.98 use: rear Nexus 3, 4, 5, 7 and hubs! This or other websites correctly sold without a cog, dust cover, ring, or any mounting parts lower. By a spring circlip ( snap ring ) experience, please enable JavaScript in browser! Was in many ways an innovative design, and when you buy the hub axle steel ( Cromoly frames. Gear systems, Shimano uses tab washers that engage the dropout slot for! A flat-blade screwdriver at Walmart.com European countries hit stage 6 in the inner face the... The cassette joint damage the threads of the dropout slots, to avoid infringing on Sturmey-Archer 's patents but. A high-end product line with 8 and 11-speed hubs internal Geared rear hub - coaster brake -.. Waterproof grease is highly recommended to keep water out of 0 Brand: Shimano I have also owned used. Reliable, internal 3-speed mechanism, the two regular over-run ratchets are still in place to the needed.... The hub axle to Store and/or access information on a device 3-speed mechanism, the you!