Shimano Rsx Shifter
Valorie Carlee
I recently rebuilt my whole bike. It was in terrible condition. I also decided to get a new freewheel with more speeds. While i was doing some research and looking through shifters and freewheels, i found out that the twisting grip shifters were limited to only 6 and 7 speeds. I couldn't find any twisting shifter with more than 7 speeds. I personally find them so comfortable, convenient, easy and way faster to shift than the common trigger shifters. I finally decided to get rid of the old 6 speed freewheel and install a brand new 7 speed freewheel with a huge low gear for crawling.Why are trigger shifters so widely used? I don't see any advantage.
Update: Many people said that twisting grip get stiff over time and are difficult to twist. Yes they get a bit stiff over time, but from my experience they still aren't hard to twist at all
Modern grip shifters do exist, Sram makes a wide range of those, and in my experience, the cheapest option (the GX model) is very reliable and performs very well. For completeness sake, grip shifters have the following advantages:
I've owned/looked after a few bikes with twist shifters. They've always become stiff to the point of being hard to shift at all after a few years, even with new cables, and they're a pain to strip down compared to trigger shifters. I have successfully de- and re-greased some ancient SIS trigger shifters to good-as-new condition but never did so well with revoshift. Even before the deterioration one (paired with a 7-speed megarange cassette and appropriate derailleur from new) struggled to get into the big sprocket: it needed considerable grip strength to do so. For some bizarre reason they put them on kids' bikes. I guess they're fairly intuitive, but the grip required is often too great.
The exception seems to be the rental bikes round here that use 3-speed Nexus hub gear with a grip shifter. That works fairly well, though it twists the opposite way to the last one I had, which still confuses me sometimes.
I've had twist shifters on a couple of bikes, and I prefer trigger shifters because I like to keep the skin on my fingers - too often I would have to grip them tight when adding tension to the cable, and would almost get proto-blisters in my purlicue. They also mean that I'm effectively letting go of control of that side of the handlebar, as my hand is controlling the twisting of the shifter and it's difficult to apply much steering control while doing that twisting motion, again mainly when adding tension to the cable; with trigger shifters I can brake with both hands, change gear with both hands, while still having enough purchase on the handlebars to steer.
As a famous marketer once said, there are more cockroaches than humans. So there are more trigger shifters than twisting grips.In fact, two of the most expensive shifting systems, Pinion and Rolhoff, both uses twist shifters (as far as I know, there were some experimental trigger shifters being developed and funded on Kickstarter for Pinion).
My guess, and this is just a guess, is because they were invented first and just became established as the norm.I also prefer grip shifters. Probably because I come from a BMX background they feel more comfortable to me. Sometimes on a rough trail my thumb will slip off with trigger style shifters, with the grip shift, my hands are always on them already.I have an old hard tail Trek that I bought new as a teenager...in 1999...that has SRAM grip shifters. I've probably put a few thousand miles on that bike over the years, and I still put it in the mix to this day. I've NEVER had a problem with them. They still work perfectly. I'm kind of surprised really, considering how long I've had them. They've never become stiff, and mud has never affected them.It all comes down to personal preference, but I've wondered the same thing as you in the past.
Differently, trigger shifter is more "one up" or "one down", the cyclist knows the current gear only approximately (assuming that the gear indicator does not have any labels either) so unlikely to complain if the gear does not shift where expected and one needs to click the shifter once more up or down.
I prefer grip shifters that allow me to select the gear I want with a single movement, especially the planned starting gear before stopping, and shift precisely over multiple gears when starting or finishing the uphill (that may be both steep and vert short, like a ramp of the underground street passage).
Unfortunately, none of my newer bikes has them - uncommon. I do not remember having any single problem with the twist shifters I used before. Hence I needed to think up a different reason, why the component I would strongly prefer is not easily available on the market.
Trigger shifters are very cheap and easy to use. They can be used during a harsh winter when you have so thick gloves on that your effective finger size is multiplied by a factor of 2-3 as thick gloves don't make operation difficult. They aren't (usually) coupled to the brake lever so you can choose your brake lever and shifter separately. They allow you to downshift multiple gears at a time. They probably work more reliably on a slightly out-of-adjustment drivetrain as downshifting involves a small amount of "overshifting" and then releasing the overshifted cable to fall back to its rest position. In contrast, grip shifters don't overshift. Thus, they are more likely to function less well on a drivetrain and cable system that's a bit out of adjustment: perhaps the rear derailleur hanger isn't straight, perhaps the rear derailleur bushings have worn, perhaps the cable has more friction than when new, perhaps the bottom bracket cable guide is full of dirt, etc.
The swap went perfectly. I was able to set up the GX AXS shifter and derailleur on my bike without any issues. I pulled the old parts off and replaced them with new ones. It shifted perfectly in the repair stand. Repair stand shifting rarely reflects real-world, less-than-optimal conditions, however. So some real-world testing was needed.
Hi, Is your sram axs still working well and at what mileage ? The "slaming/pops" is due this mix or also of typical sram setup? Last but not least, any needed consideration for my 2x xtr m9100 and not typical 1x m9100 ? Thanks in advance and cheers.
Did you consider changing the guide pulleys to Shimano ones?
Would this make a difference as the guide pulley on the Shimano 12-speed derailleurs have 13 teeth compared to the 12-tooth SRAM guide pulley.
Been riding gx axs with slx cassette on my orbea rise. Probably around 400mi and so far no issue. So i can say this combo is pretty good. Shifting can be loud when changing gears under heavy load like when it uphill. id say if youre thinking about it give it a try.
If I look at the micro shift settings in the SRAM app, I need 9 microshift on the 51T, 14 microshift on the 45 to 11, and 16 microshift on the 10T. Basically, the Shimano cassette is 0.5mm wider than the SRAM and on the limits that is noticeable.
After that a C-shaped lockring needs to be removed, and I used a small straight blade screw driver to accomplish this. Once done, the lever body can be removed from the base. Flipping the lever body upside down revealed the ratchet grooves which engage against the pawl. There is a spring which fits into the lever body.
The spring had evidence of prior lubrication, now dry, so after cleaning I added a small bit of grease to the spring. The ratcheting pawl on this shifter was a tiny alloy piece perched atop an equally tiny spring (2nd photo from last). And, the overhaul revealed that these shifter bases are the same for right and left hand. A small plug blocks the 2 way cable routing so that each shifter base can be set up properly on the right and left and side of the handlebar (last photo above), depending on the direction of the spring. There are also several washers in the base of the shifter, which I cleaned and re-installed.
Agreed. These shifters ratchet in both directions and feature a clutch spring, which is incorporated in to the shifter lever. Plus, they are not only very well engineered, but oh so unusual appearing. A fun looking and long lasting component.
Integrated Mountain bike shifter adapters for TRP brakes are now available for Shimano I-Spec B, I-Spec II, and Sram MatchMaker. Adapters will mount your shifter or dropper lever directly to your TRP brakes to keep your cockpit nice and tidy.
Thanks for both of your feedback, I dont think I used the correct barb. I pushed the one for the BH90 hose into the existing one and now that I understand they are different diameter I imagine that might not be providing a proper seal. I think I will go ahead and run the new hoses with new barbs and olives and try to give it a good bleed again.
Long story short, I forgot to tell the ex-pro mechanic about the squishy brakes but he noticed it on the post bearing replacement test ride. And he fixed it. And forget to tell me he fixed it. But he obviously fixed it because the brakes were back to normal.
I havent seen any leaking, I only replaced the barb on the lever end. I imagine I havent been able to put enough pressure in the line to really cause a leak, but its possible there is some leaking slowly, I will check when I get home. I dont believe I cross threaded anything.
Thanks for your experience with a similar situation. I just ran over to my LBS and spoke to a mechanic for about 10 minutes and he seemed to think that it might kind of work but probably not very well because the RS505 caliper is designed for the BH59 hose. This sort of matches up with the chart because it doesnt show any applications of the RS505 with the BH90 hose. I am enouraged to see that the RS505 shifter does work with the R7070 caliper when the BH90 is used, and therefore these two systems should have the right cylinder ratios.
Interesting. My 2015 Domane came with that exact gear and from the beginning there was zero squish. So I thought it was normal to be able to do an endo if the front lever was pulled hard. They only got squishy when the pads needed to be replaced, or perhaps before the annual bleeding.
c80f0f1006