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Unlike with 11 speed MTB, here the biggest sprocket can be removed. The smallest sprocket must never be removed since it is profiled to accept the lockring holding the cassette in place. When removing sprockets, if it is not the largest one, expect shifting between the two adjacent sprockets left to be a bit sluggish, since sprocket teeth are profiled to allow faster shifting, but removing one sprocket messes up that pattern.Ĩ, 9 and 10 speed cassettes can be used if one sprocket is removed.ġ1 speed MTB cassette should also fit with just one sprocket removed, but here, along with the smallest, the biggest sprocket also mustn’t be removed – it is specially designed to take up less space on the freehub body.ġ1 speed road cassette – two sprockets need to be removed. Freewheel rear hub with threads,Īnd freewheel sprockets that are screwed onto it.ħ speed freehubs accept 7 speed cassettes.Ĭassettes with more sprockets can also be fitted onto 7 speed freehubs, but some sprockets need to be removed. Stated compatibilities also go for SRAM (and most other manufacturers’) cassettes with the same numbers of sprockets – they’re compatible with Shimano, except the SRAM XD cassettes.Īll the current (since the year 1990) freewheel hubs are compatible with all the 6 and 7 speed freewheel sprockets. It is important to note that there are three major rear freehub standards – a) Shimano standard supported by most other manufacturers (SRAM as the biggest one), b) Campagnolo standard and c) SRAM XD standard that accepts cassettes with the smallest sprocket of only 10 teeth.Ĭampagnolo uses different spline design, so Campagnolo cassettes can only fit Campagnolo freehubs, while Shimano cassettes will only fit Shimano compatible freehubs. Please take the 5 minutes needed to read the compatibility articles use instructions.Ĭompatibility categories will be sorted by number of rear sprockets. For other important facts about rear hubs, read the following articles:īefore you start, to avoid any misunderstanding: To keep things simple, let's look at just 29ers.Note: this article explains compatibility in terms of rear sprocket mounting and proper gear shifting. Know that this value does depend on wheel size. Here's a simple way to think about gear-inch combinations: For one revolution of the pedal, your bike will travel a certain number of inches. What are the gear-inch comparisons?Using a gear-inch chart is one way to compare gear ratios without riding the bike. This issue becomes more of a consideration when riding longer distances too. Since the amount of oxygen is reduced, riders find that an easier gear combination accommodates the ability to produce power for longer periods of time without tiring as quickly. If you're concerned with optimizing performance and don't want to give up gears on the climbs or descents, then 2x10 is likely the better choice for you.īenefit of 2x10 gearing on long climbs: Many cyclists want lower granny gears for long climbs, particularly when training and racing at altitude. However, if you like long rides that include climbs at altitude or steep sections along with descents that include fire, dirt and asphalt road sections, 1x11 gearing will give you less options climbing and descending. More: 11 Climbing Tips for Cyclists Do you like long, steep climbs or do ride often at altitude?If you ride long climbs (particularly at altitudes of more than 9,000 feet) with no fire roads or asphalt, 1x11 may be an option if you are a strong rider.
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How strong of a rider are you?The choice of 1x11 works well for strong cyclists that enjoy rides or races with longer climbs with limited roads (fire, dirt and asphalt.) These rides generally have technical singletrack descents that don't require a lot of pedaling.īenefits: Strong riders can find a gear combination, front and rear, that will for allow a good cadence on long hills that are too steep. The lack of shifting from big ring to small ring will also eliminate the chance that you'll drop your chain, which will make your overall experience on the bike much less technical.īenefits to 1x11 gearing: Reduced weight, a simpler mechanical system and a lower chance of mechanical issues. You also won't need a front derailleur and you'll have one less chainring, which will make your bike considerably lighter.
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Since the front derailleur is eliminated, there's no need for a shifter on the left side of the handlebar. Do you value simplicity and weight savings?When riders make the switch to 1x11 gearing, one of the things they enjoy most is the simplicity.