I saw one extra grande fellow shear off his CenterLock brake disc mount, but that was a one-in-a-million case. The sprocket supplied with this hub has a chain guide plate attached, which will help keep a loose chain from coming off and potentially damaging the shifting parts. Following this, spot lubrication of internal moving parts is advisable so they are ready to go with the first pedal stroke: oil injected from outside can take a while to reach them. Anyone tried an Alfine 11 Di2 - Singletrack World Magazine 4 Howdy folks! But use it at your own risk, and please dont tell Shimano. JTek makes a bar-end shifter, probably the most reliable option for drop bars. Let's examine the top secret Honda bicycle gearboxes and find out how they all work. A customer asked if we could build his Ventana with the new Alfine 11 Di2 system and the new Gates CenterTrack belt drive. Bicycle Touring . New bicycle gearboxes are coming onto the market quicker than at any time in history. The clearances in all Shimano internal-gear hubs are tight; any shrapnel in the hub (particles bigger than ~0.25mm) will probably cause one or more gear trains to jam and/or be damaged. I know, another Priority bike. If the hub behaves oddly or makes noises in some gears and not others, the table above can help to identify which parts may be responsible. You can actually see how much forward movement there is in the hub when you step on the pedals from stationary. Drive Efficiency 5. As discussed in my belt drive deep-dive article, the chainrings and cogs are much more expensive than for chain drives. The Continuum Onyx has a very MTB-like riding position, which will suit some of you fine. Shimano Nexus/Alfine 3, 4-, 7-, 8-, and 11-Speed Technical Information I'm here to help you travel the world by bike! Other nifty details are the Plug by Supernova, which charges electronic devices but one of my favorite frame details is the special bracket for mounting the . While a rack is not included, there are well-placed mounts on the seatstays and an extra pair of eyelets on the rear dropout, so their own rack and most generic ones will mount easily. This is my guide to 2023s top belt-drive bicycles for commuting & urban riding, touring, mountain biking, and more. As the parts arrived, they realized that it would take . But the Clubs uses a 22-tooth rear cog whereas the Spades uses a slightly tougher 20-tooth cog. Some folk have suggested that there ought to be more gears yet with different clutching (because there are sixteen possible permutations of four clutches) but the two sun gears of the second stage cannot be usefully locked at the same time. Multiplying the ratios of all of the active stages together produces the final ratio. The four roller clutches, RC1 through RC4 from right to left, are easier to see in the cutaway view below. While Im a huge fan of Bromptons compactness and ride quality, one thing they unfortunately dont offer is a belt drive. lubricant - Mystery grease source - Alfine 11, Gates Belt drive Step 1 - Select Your Size: X-Large Not sure? I test-rode an older version of the enviolo CVT, back when it was branded NuVinci, and came away impressed. With shimano alfine di2 there's no front mech so the right-hand lever (st-s705-r) has a shift paddle but the left-hand lever (br-s705-l) handles braking duties only: James Costley-White/BikeRadar Some bikes may not be stiff enough to handle Gates. Alfine | Shimano Bike-us Sturmey Archer has manufactured IGH hubs for over a century, and Shimano is easily the biggest manufacturer of gear hubs on the planet. The reduction gear ratio is 0.527, the same in an Alfine or Nexus 8-speed hub, and the tooth counts (with the stepped planet gears, visible in the picture) are the same. Preload adjustable transarch Zoom suspension fork. But if you ride flatter trips and keep on top of the shift cable maintenance, Alfine hubs work out great. > ALFINE Di2 Internal Geared Hub for Disc Brake 11-speed VIEW PRODUCT. That would be a shame, though, since the belt drive + IGH set-up with fenders and included lighting is tailor-made for year-round urban riding. The cable approaches the pulley at the top with all cable-operated Alfine 11-speed hubs. Are derailleur and gearbox drivetrains the pinnacle of whats possible? If a Gates drive belt is overtightened, it can interfere with shifting, at least on the 8 speed hub. Price: AUD$2,999 So, whats the difference between the 8-speed and 11-speed Alfine hubs? But those who prefer a more stately, upright ride are out of luck. Its a shame since the grease inherent to chain drives calls for caution when carrying the folded bike by your side. Continue with Recommended Cookies. Whether its busy transit, a small home, or even airplane travel, there are cases where a folding bike makes sense. SG-S7051-11, SHIMANO ALFINE - DI2 Internal Geared Rear Hub - CENTER LOCK - Disc Brake - O.L.D. The unused gear is the direct drive gear. However, to do an accurate job, the right side of the axle needs to be clamped in a vise. In the US, its probably ok too as long as youre happy to ship your wheel to a gear hub specialist. If youre using the 8-speed hub in wet and gritty conditions, make sure to get the hub re-greased every year. Those have a better beam pattern that is sort of square, which makes it cover the ground more evenly and it reduces glare for oncoming riders. Theyre fairly quick to adjust, which will come in handy if you ever do switch between fixed and free gears. 'Rofan' (see Alfine 11 reliability thread) has reported that the shift control sleeve inside the hub is lighter built and longer than the equivalent eight-speed versions and this presumably makes it more likely to give trouble through wear or high shift load. But its still not uncommon to hear of people having problems with them. Electrically-shifted hubs have a blue line around the hub shell. I will answer all of this and much more in this in-depth Shimano Alfine resource. The SHIMANO ALFINE S7051 hub offers a wide 409% gear range actuated by SHIMANO DI2 electronic shifting and an improved internal structure for better gear engagement. That said, go for the Clubs if youre in a hiller areaor better yet, use the gear-inches calculator linked above to compare to a bike youre already familiar with. The Alfine gear hubs both weigh around 1700 grams (3.75lb) while regular rear bike hubs are often under 500 grams (1.1lb). In comparison, with the exception of the first gear (which is an unusually large gear step of 29%), the Alfine 11 averages a much smaller 13.5%. Shimano ALFINE Di2 SG-S7051 11-speed Center-Lock Internal Geared Hub As a result, you get a significant reduction in drivetrain maintenance, and with fewer components exposed to the elements a reduction in running costs too. Hit the town in style, with ALFINE a high-grade groupset built for the sophisticated urban rider. Ultimately, the Alfine hubs are optimised for urban use, which usually means getting around town on flatter terrain. So, they started with his Ventana 29er hardtail mountain bike and added a Gates Belt Drive and Shimano Alfine Di2 11-speed. This is because you can damage your hub by putting high loads into the internal components before the shift is 100% complete. This is because theyre cheaper, quieter and employ trigger or neat drop bar shifters. just for a light touring/general day to day bike any thoughts appreciated. It uses simple track ends to position the rear axle for belt tension. Were going to look at some outstanding options that are not only good deals (at their price point) but also fun, useful, and well thought out. The overall range of the 11-speed hub is 408%. Unfortunately neither is included, so account for them in your budget, but Priority sells both at reasonable prices. Theres also the BMC Alpenchallenge 02 One if you prefer something on the athletic, aggressive side. ALFINE Di2 Internal Geared Hub for Disc Brake 8-speed VIEW PRODUCT. Some hubs have been almost completely dry when opened up for inspection. Thats nothing in the big picture, but if youre in urgent need (perhaps for upcoming travel) then you may need to pick an alternative. The Ridgeback Panorama is a British-designed, Reynolds 725 cromoly-framed, disc brake-equipped, classic touring bike with a durable selection of 39sp drivetrain components from both road- and mountain-biking ranges. Personally, I prefer more upright and swept-back handlebars for city riding. By the way, according to Shimano, its not pronounced Al-fine or Al-feen. But among all of them, the Ace is the only belt-drive option besides a couple of folding bikes that well look at below. > While its light and presumably goes a long way to dampen vibrations, its not as tough or durable as the frames high-quality steel. More importantly, the few others that come close in specs are nowhere near the value of the Continuum Onyx. Copyright 2023 Two Wheels Better. FEATURES Improved internal structure for better gear engagement Smooth shifting performance Improved performance for both E-BIKE and non-E-BIKE usage View More FIND A DEALER PRODUCT SPECIFICATIONS View More TECHNOLOGIES REPLACEMENT PARTS Right hand cone removal tool Right hand cone installation tool Right hand dust cap A installation tool Their Cooper (step-over) and Carmen (mixte) are the most affordable quality belt-drive bikes aroundand their classic urban bike looks don't hurt. Any bike shop can service them if or when they start feeling a little crunchy, but its too bad Priority didnt opt for sealed bearings all the way around. by John Allen, The Shimano Alfine 11-Speed Internal-Gear Hub. so that the 'flat road, no wind' gear is about 70-80% of top gear, (see advice here) then gears 7, 8, 9 (which are relatively efficient) are likely to be the most used gears. When your climbing gear is too high, youll be working much harder than necessary, which results in more muscle fatigue, and frankly, makes hills much less enjoyable. Mystery grease source - Alfine 11, Gates Belt drive, Shimano bottom bracket. The Tern Verge S8i offers an 8-speed belt drive and dynamo-powered lights for $2099. Some listings are outdated, but its a fantastic starting point nonetheless. As with the rest of the Priority line, the Ace uses horizontal sliding dropouts for belt tension adjustment. The cable shift control is very sensitive to variations in build tolerance and adjustment. Equipment . When S2 or S3 are not locked, they turn (usually backwards) on the axle, not introducing an appreciable parasitic drag. He draws on three decades of cycling and scooter experience to help you find the right ride, incorporate it into daily life, and safely enjoy the journey. Figured I'd like to try Di2 Alfine, so bought all the kit. Its the sort of thing that requires serious thought on parts and is worth waiting a while for. Shimano Alfine 11sp internal hub. The hub is adjusted the same as any cup-and-cone hub. But more than any, the Continuum Onyx jumps out as a remarkable value for commuters, and also holds a well-deserved place on my best value commuter bikes list. SHIMANO ALFINE S7050/S705 Series | SHIMANO BIKE COMPONENT SHIMANO ALFINE DI2 Internal Geared Hub Disc Brake 11-speed The grease helps to keep water and grit out of the hub, and will vastly improve the life of the hub. Shimano oil is expensive. Prioritys Turi is another belt-drive bike with a more classic, upright design for just $899. I see just one caveat and one minor design issue worth noting. What's The Best Touring Bike? (Updated 2023 Edition) Under very low loads, the parasitic losses from the overrun roller clutches may be more apparent than the gear train (meshing + bearing) losses. Creme Cycles is unfamiliar in North America, but with eye-catching style and the specs to back it up, their Ristretto Lightning is a terrific high-end choice. 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. The rotor diameter is 180mm, not the usual 185mm, raising issues of compatibility with . If you've learned a thing or two from me, consider supporting my independent resources, Bikepacking . Shimano Alfine Di2 - First pictures - BikeRadar ton Full Member anyone tried one? This can happen even if the sun-locking pawls are fully extended (in new hubs or hubs where there are burrs on the pawls) but it certainly will happen if the sun-locking pawls are not fully extended. My pride and joy is an Alfine 11 drop bar cross bike with Gates centertrack belt drive. The sliding, horizontal dropouts are a good choice for belt tensioning, since eccentric bottom brackets (the main alternative) can be a little prone to squeaking. PRIORITY APOLLO GRAVEL - Priority Bicycles There are disadvantages, though. The Alfine 11-speed hub operates inside an oil bath. Also consider: The Cube Travel EXC is a slightly more upright equivalent, with a comparable price, better headlight, and rack included. The Ace of Clubs and Ace of Spades both use a 50-tooth chainring. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Shimano trigger shifters. Both are sporty hybrids with commuters in mind, and they include the all the same conveniences. CroMo has a better strength-to-weight ratio than other types of steel used in frames, and butting refers to optimizing the thickness and contour of the tubes to trim weight a little further. They are press fit in with splines, so it would be amazing if one did break free. Other nice features include the ability to shift gears while stationary and the rear wheel can also be built stronger thanks to the shorter spokes and even spoke tension. Ill circle back to why in a moment, but first, some important details. Numerous users have reported skipping in some gears. Regarding gear shifting, its best practice to ease your pedal power momentarily when you change gears. How Do Shimano Alfine Hubs Feel In Comparison To Rohloff Hubs? With an ultra-low gear ratio (1.2:1), a 100kg/220lb rider can stand on the pedals and put 143Nm into an Alfine hub, which is more than the maximum input torque that Rohloff allows (130Nm) and thats a hub rated for tandem use. In addition, theyve been tested to be around 4% more efficient than the Alfine hubs across the gear range. With a good handle on both gear systems, Ill be drawing comparisons between these hubs throughout this presentation. As it is, the hub uses a single gear train in gears 1, 7, 8, 9, thus these are likely the most efficient gears. SHIMANO BIKE-US However, Id like to have seen a known, name-brand headlight like the Busch & Mueller IQ-XS. I have never seen one come loose. Gates and Shimano worked with multiple custom bike builders to show off the clean, quiet and slick compatibility of these two leading technologies. Priority Bicycles already dominates the great-value belt-drive bikes niche, which you might have figured from their strong showing here. Thats still compact, to be sure, but harder to stow under a train seat or behind a door. Gear Steps 3. Both Shimano Alfine hubs achieve around 90% drive efficiency on average. A Gates belt drive system is used in conjunction with a Shimano Alfine 8-speed rear hub to provide a wide spread of gears. For someone who rides a bit more seriously, the 11-speed version offers smaller and more predictable gear steps, along with a wider gear range. Lubrication System 4. Take advantage of the clever look and the large transmission range of this hub shift system with eleven gears, which gives your wheels real "back wind". jb has also posted diagrams which show the drive path through the hub in the various gears. PRODUCT Storing the bicycle under shelter, but where temperature is near that outdoors, can reduce leakage. Additionally, should you crash or drop your bike, there is no rear derailleur (or hanger) to put out of alignment, or worse destroy. A bike with smaller gear steps is particularly nice at higher speeds, as you can better fine-tune your gears to achieve the cadence (crank revolutions per minute) youre most comfortable riding. A "snapping" (ratcheting) belt can feel exactly like a hub skipping on a test ride.
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