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The freehub will give you the belt alignment advantages of the Sturmey-Archer detailed above but with even less maintenance. Getting paid by mistake after leaving a company? + ships free, Shimano Alfine SG-S7001 8-Speed Disc Brake Internally Geared Hub Item Specifications Color: Black Hub Drilling: 32 Spoke Interface: J-Bend Drivetrain read more, your price $249.99 OLD: 135 read more, Shimano Nexus SG-8C31 8-Speed Roller Brake Internally Geared Hub The harder you pedal during shifting or right after, the louder the noise. This very often results in destruction of the hub internals, especially in the single or dual-roller hubs with a pawl-drive in the RHS, because the balls can easily get into where the pawls sit and then break them. Shock loads have also broken other parts of the axle assembly. the section on sprockets in the main article on internal-gear hubs. UtahTrikes.com is a wholly owned subsidiary of Guy Graphics, Inc. An internally geared hub's durability and innate protection from the elements make it an incredibly maintenance free pairing with VEERs Split Belt. I therefore advise anyone working on these hubs to assemble the internals into the hub shell without the sprocket and the dust cover, and to be sure that all the balls are still present, and that the cone adjustment is pretty much done before the covers are refitted. We appreciate you have the same problem, but have you gotten any closer to a solution than the questioner? From personal experience, Ive found that a Shimano Nexus 8 transmission outlasts an equivalent multi-cog derailleur system by a factor of at least two. Drop bar levers can be used with Di2 hub model SG-S7051-11, Twist shift, thumb shift, bar end thumb shift, Rim or disc. Use: RR Gears Shimano has also developed electronic shifting (Di2) for these hubs and an electronic drop bar hydraulic brake lever choice. This is the part number or identifier for this item from the manufacturer. + ships free, 135mm spacing You will also need shifter and in most cases a tensioner. However whilst you can usually fit a tension-spring preload clutch internal into one that was originally fitted with a drag spring, you do need to remove the drag spring. Parts for some older models may no longer be available. With its single chainring and single rear cog a Shimano Nexus setup offers much of the simplicity and the minimalist aesthetic of a single-speed bike. You change gear with a simple twist of the Shimano Revo gear shifter, pictured. Because of this commuter oriented design, the Alfine (and Nexus) tend to have slightly higher gearing than Rohloff. Different vibrating tone on a belt drive with a Shimano Alfine hub, carbon gates belt drive . Aaron Goss, of Aaron's Bicycle Repair, reports: A "clunk" now and again on a Shimano 8 speed hub is normal. I mostly ride in the city and sometimes for fitness purposes. Individual Price: $25.99 -R. This hub version will not work with roller brakes. I personally have logged some 800 miles on a very early version of this system on my road bike and I have produced more cracks in my rim than I have had drivetrain problems. The axles on this Nexus hub should be 3/8" x 26TPI. Drilling: 36H If you succeed with this, please send advice, because that repair can save a wheel! Shimanos 8-speed Nexus SG-C6000-8D. A parts list for the SG-S500 'A' version formerly on the Paul Lange site (now in the Internet Archive) helpfully indicates compatibility with some Nexus 8 hub variants. All Alfine hubs have roller-bearing pinions. QR After riding one of your belt drives, it really got me dreaming up my next bike. 36H Team VEER is attending Eurobike!! Gears: 8s Int Even if you don't have the solution but have observed the same behaviour please reach out and maybe we can find the solution together. I don't think Versa has been around for a few years now, but as they weren't super common for that kind of build, you'll likely find some shops online or Ebay listings for them. The part number for the drag spring is the same for the Alfine as for some coaster brake hubs). Great work! Thank you! The Nexus 8-speed hubs have a overlocknut spacing ranging of 132 to 135 mm, as sold: see Shimano's overlocknut spacing chart. QTY 36 Mechanical shifting with disk brake mount. + ships free, 3 speed internally geared hub with integrated coaster brake Corrosion resistant coating Axle length 168mm Use: RR Gears: 3s Int Spoke Count: 36H read more, your price $89.98 Among models with a roller clutch at the left side, the SG-8R30, SG-8R31, SG-8R35 and SG-C6000 have plain bearings; the SG-8R36, SG-8R55, SG-8R56, SG-C6010 and SG-C6060, needle bearings. For all Nexus and Alfine 8-speed hubs except the S7000 series Alfine hubs, the cable is loosest in the lowest gear. for any further information you may need on your journey to derailleur liberation. 100 read more, Shimano SG-C6 Nexus 8-Speed 36h 168mm Hub with Coaster Brake, Silve read more, your price $189.99 Several Shimano dealer's manuals offer information on installation, adjustment and maintenance of newer hubs: Shimano made information sheets available individually for earlier hubs. How much does it cost to manufacture a conductor stone? You'll find details about interchangeability if you keep reading this page Shimano sells the axle assembly only as a unit and does not provide rebuilding instructions for it -- but you might disassemble it either by mistake or to cannibalize parts. About Shimano - "Shimano practices good local citizenship, pursues continued access to those areas that are enjoyed by outdoor enthusiasts, and is committed to minimizing our impact on the environment. I will continue observing it's behaviour and still try to avoid applying to much torque to the system. Spacing/Axle: B/O 3/8 At the small-parts level, there is much more interchangeability than is shown. Copyright 2022 Modern Bike, Inc. All rights reserved. Does not include shifter or brake Internally geared hubs are technological wizardry that conceal all of their complex bits inside a contained, convenient, oil bathed package in order to give the user gearing without the use of derailleurs. Also check dropout alignment slash sync up slider fore/aft if applicable, all of which can in theory cause hub badness. Parts list, exploded drawing The step-through frame is easy to get on and off from and the Shimano Nexus 7 speed hub gearing provides enough gears for everyday city riding and gives low maintenance cycling! Electrical shifting. How can I use BABE's randomness in my parachain? This is not possible with the coaster-brake or disc-brake models Including the Alfine. Three roller clutches, Band brake (? When a model number in the interchangeability column is in italics, the entire internal assembly is compatible. The best answers are voted up and rise to the top, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. Those that are not covered, we did our best to give some acknowledgement of their existence. The Nexus and Alfine 8-speeds are more rugged than at least the older 7-speeds, but it have some well-known failure modes, and there are also well-known ways to prevent failure. Its crazy how sensitive these hubs can be and also how mark can be a bit off and misleading. Coaster-brake models have at most one roller clutch. If one or more is under-lubricated, deformed, or out of place, it could cause a partial engagement problem, which also fits the symptoms. With such durability, range, efficiency, compatibility, lore and a belt/chain line that works well with VEERs Split Belt the SPEEDHUB is probably our top pick but all of this comes at a hefty up-front cost of $1,800. Smaller Rollerbrakes overheat when used on long downhill runs. Premium models have two or three roller clutches rather than only the one. Factory lubrication is inadequate, and better lubrication is advisable -- even with a new hub -- also, to make later cleaning and rebuilding easier. QTY 1 Read those articles along with this one. Is it legal to download and run pirated abandonware because I'm curious about the software? That said, pairing this hub with a mid-drive electric bike largely takes care of those problems and youre left with an incredibly simple, smooth, silent and comfortable ride. Instead, shift down and spin. Aly It is true that everything about this should be covered under warranty. Unlike a 'traditional' bicycle where you can see the gears on the outside of the back wheel, the Shimano Nexus 8 Hub has all of the gears safely tucked away inside a sort of 'drum'. Please note, comments must be approved before they are published. This article applies to Shimano 8-speed internal-gear hubs only. The lack of derailleurs removes one of the more vulnerable parts of a bike (the rear mech and/or its hanger often take the hit if the bike is knocked over). Thanks for suggestions! 3rd step was research and it seems that few other users have noticed such behaviour even on this website. What is the thread for the axle? But at second glance you realize it can be paired with VEERs Split Belt to solve one of belt drive's biggest issues, belt alignment. Similarly if the hub has a pawl drive on the LHS (for gear 1 and 5), the internals ought to be rotated backwards as it is installed, else pawls may be dislodged. In some cases, it is possible to convert an existing bicycle to the use of a Nexus hub. Pairing a Split Belt with an internally geared hub is an easy decision, however, choosing which hub is more difficult. The Alfine requires a wider overlocknut distance than the Nexus without Rollerbrake. Possible torque restrictions not specified, 34 tooth max. If you just cant make up your mind, thats ok too. 3rd party options available for drop and trigger shifters but they are expensive. Thank you! Jeffrey's Fluorescent UTCustom HT-3 Hand and Foot Cycle, Lori's Sparkle Candy Blue UT Custom Sun HT-3 Hand and Foot Cycle, Paul's Revolution Defiance Full Suspension Trike, Shimano Nexus 8-Speed Premium w/Shifter, Tensioner, Small Parts, Chain. They are incredibly tough AND they have an incredibly large gear range at 526%. Materials on this site may not be used without express written permission. Reader Bruce Dance indicates: The Alfine SG-S500-based models (hubs and wheelsets) have an 'A' and a 'B' version. The 'A' versions are 'two-roller' internals, i.e. See this Shimano document for description of some internal differences. Some other models limited to 250W, Axle plate, caliper mount or axle dropout slot washer. Mechanical shifting with disk brake mount. Rohloff also makes versions or accessories that make their hub work with nearly any bike set up except drop bars for some reason (aftermarket brands like CINQ provide this). Was it accurate (history-wise) for Koenig to know about robots? This is by no means a complete table and there are several variations of each hub that will not be fully covered here. + ships free, 8 speed internally geared hub for V-Brake or Roller Brake I have the same bike from late 2018 and the same Nexus gear issue that has not been resolved by adjustment to the cable tensioning, and the realignment of the yellow marker. I actually found 2 threads with similar problem but with no clear solution: The crank arm slips when pressing hard on pedals with Shimano Nexus. Bearing: 3s Int Not too fast of a cadence but not too slow and difficult. party options available for drop and trigger shifters but they are expensive. For the love of cycles, cycling and all things bike related. The absence of oil means the belt doesn't attract dirt the way that even the best maintained steel chain can. A CVT is a transmission that has a limit to its gear range but no limit to the number of speeds that it has. It is the sun gear rotating and engaging the axle pawls. I have solved the problem by replacing the axle unit or rebuilding it. It is possible to reduce the spacing of the Nexus Rollerbrake/freewheeling models to as little as 126 mm by leaving off the Rollerbrake and using a narrower locknut. OLD: 135 Or, maybe you just want a spare spoke to take on your trip? I found mine had to be backed off a couple turns from the "right" position, but that was on a bike with suspension, so sitting on it re-tensioned things. Trigger shifter. And by away I mean 0.5-1 turn of the adjuster. The SG-8R20, SG-8R22 and SG-8R31 have plain bearings; the SG-8R25, SG-8R27 and SG-8R45, needle bearings. Speculated to be 80-85%, Yes, stepless automatic electric shifting, extra cost. How can I tell when FFMPEG is done writing a file? There are also 8-speed versions. Shimano Alfine CT-S500 Chain Tensioner-Not for use with coaster brake or fixed gear hubs-20 tooth max rear sprocket-16 tooth chainwrap capacity-41.8mm chainline-Uses washers on the mounting bolt for 5mm of chainline adjustability In Store orders usually ship the same or next business day. If its serious I'll take it to the dealer. What does an area represent in a spacetime diagram? These make only a very minor improvement in efficiency but are quieter than pawls and ratchets, and engage more quickly when resuming pedaling or changing gears. Probably the most common failure, though, is due to insufficient lubrication, leading to contamination by water and dirt. View your cart to change product quantities, apply deal codes, or checkout. Installation instructions. Dynamo At 199+Vat for a new replacement gear with no guarantee of the same issue reoccurring when cycling mild/medium hills I really regret buying this cycle. Is there a name for this fallacy when someone says something is good by only pointing out the good things? This is easy to inspect for once the core is removed.

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