I have an 18 speed roadmaster mountain bike with the twist shifters that need to be replaced. Will this work? It looks like there are only 6 gears.
1324299
well seeing as nobody else has answered your question properly...no. You have a 3x6 speed, so you'll need 3x6 shifters, unless you want an extra click in your shifters...you could also go and get a 7 speed rear cassette (which would also need a new rear wheel) and then, hey presto! more gears to play with! So, in short, this will not work properly.
1324300
Yes it will the front shifter will work as normal on the 3 main gears on the rear you will only use 6 of the 7 stated on the shifter god bless .
1454067
why would you want a 7 speed mega range freewheel on a 6 speed bike?the 7th oversized mega cog wont even be accesable with 6 speed shifters and derailleur,why not get a 6 speed mega freewheel(shimano MF-TZ20 tourney 14-34 tooth 6 speed),make sure your shifters and derailleur are mega compatable!!!!!!!
90541
It depends on your chain, the brand and and how old that 7 speed cassette is. The width of chains have changed over time and just installing new gears can be problematic as a consequence of both the change in chain link sizes as well as the consequent changes in derailleurs. Hard to say. It will probably work in a pinch but the only way to be sure that your entire drivetrain works in harmony, you kinda need a complete set (cassette, chain, chainrings and sometimes even derailleurs and shifters if you're changing component generations).
357783
Yeah, it will fit. You will need a 9 speed chain for sure. The front shifter on a 4300 is designed for an 8 speed, so you can tweek the derailleur until it just barely works, or buy a new 9 shifter too.
793462
if you have a 7 speed rear cand a 3 speed at the pedal this will work. I don't know anything and it was easy. Down load the instructions on adjusting the gears. It's like canything else,3 hours the vfirst time and 1 hour evetry time after that. it's easy and fun. save bucks too..good luck.619-540-7766/paul
793465
it depends if you have a 3 sprocket cassette on the front by the pedals and a 7 sprocket cassette on the rear wheel. if not then no these will not work. you also need to have shimano deraileurs. its the part that moves the chain to switch gears at the sprockets.
1899839
sure, the shifter will work the same with any size chainring, it is the derailleur that is specific to chainring size
1303830
So long as the derailleur is properly adjusted, yes it should work. The indexing is in the shifters themselves, not in the derailleur. This assumes you are using either a Shimano or a SRAM rear cassette. You may experience issues with a Campagnolo cassette.
362273
Quite certain the answer is Yes. 7 speed twist with a 7 speed derailleur. Etc, Etc.
2214914
If your going to just swap out the gear hub, you will need new spokes and have some one lace the new hub into the original rim , then just change the selector and everything should bolt onto your frame, I converted my 24 speed mountain bike to the 8 speed gear hub and enjoy it , I never changed gears on the front chain rings so no loss to me, I like simplicity
1336075
Yes it will. The pull ratio is not 1:1-- this has the same ratio as all older Shimano ders. The only problem you might have is if you run a slightly wider chain through it. I don't think it will jam up or anything crazy like that, but you might get a little rubbing on the cage as the chain deflection increases (i.e. while you're cross chained). Just run a 9-speed chain and you'll be completely okay. Again, not that the 8-speed chain is going to lead to a catastrophe. Shimano did change their pull ratio when they moved their mountain drive trains to 10-speed. This is a little annoying, but at least there are more modern 9-speed options available (10-speed road ders will still work on lower-speed mountain drivetrains, though. I'm running a 10-speed 105 der on a 7 speed drive train with an indexed shifter :) ).
1052619
Possibly. If your shifter has a "friction" mode, it will work with a 6 speed freewheel. In order to answer in more detail, we would need to know the brand, as suntour and shimano had different amounts of pull.
883646
It will work with Shimano 3x7 front derail. Definitely index shift. I have this shifter and it works As good as more expensive models.
207657
Any Shimano / microshift / sunnrace rear derailleur will be controlled by this shifter. If derailleur description says 7/8 or even 9 speed it will work. The "speed of derailleur" is really its range of movement, ie how many cogs wide it can span. 6/7/8 all use the same chain because spacing is the same. When I had mounted these A050 thumb / paddle shifters on my sons 8 spd roadbike, we could only use 7 cogs, so we adjusted High or Low limit screw to exclude top or bottom cog. If u have flatbar these are a great choice. If u have road style drop handlebars, consider the related Shimano A070 Brake Lever Shifters. Hope this helps - East Texas Rider Any Shimano / microshift / sunnrace rear derailleur will be controlled by this shifter. If derailleur description says 7/8 or even 9 speed it will work. The "speed of derailleur" is really its range of movement, ie how many cogs wide it can span. 6/7/8 all use the same chain because spacing is the same. When I had mounted these A050 thumb / paddle shifters on my sons 8 spd roadbike, we could only use 7 cogs, so we adjusted High or Low limit screw to exclude top or bottom cog. If u have flatbar these are a great choice. If u have road style drop handlebars, consider the related... » Read More Any Shimano / microshift / sunnrace rear derailleur will be controlled by this shifter. If derailleur description says 7/8 or even 9 speed it will work. The "speed of derailleur" is really its range of movement, ie how many cogs wide it can span. 6/7/8 all use the same chain because spacing is the same. When I had mounted these A050 thumb / paddle shifters on my sons 8 spd roadbike, we could only use 7 cogs, so we adjusted High or Low limit screw to exclude top or bottom cog. If u have flatbar these are a great choice. If u have road style drop handlebars, consider the related Shimano A070 Brake Lever Shifters. Hope this helps - East Texas Rider « Show Less
1550953
The clicks are spaced for Shimano gears of the 6-7-8 speeds era. I have this shifter fitted with a 6 speeds cassette and a old LX derailleur. You can also get infos at Sheldon Brown.
65579
it should work for any bicycle, but gear cassette should be 6 or 7 gears. it may be two wide of movement for say 5 gears cassette.
746707
I originally had the thumb shifters and converted to the Shimano St-A070 Road Shifters. So, I would guess it will work for you also. YouTube has some good videos to make adjustments once you have the new shifters installed.