Most Common Mistake Setting H-Limit Screw - Tech Tuesday #83

[@bikedawg]

Calvin is absolutely the BEST mechanic on KZbin!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[@Wiiwp35790]

If you're watching this, find the 16:07 vid with Calvin on rear derailleur adjustment. Excellent tutorial. Walks you thru the whole process. Thanks Calvin. You're awesome!

[@redetrigan]

The added graphics are super helpful

[@eliseorandy7190]

I know I'm kinda off topic but does anyone know of a good website to stream newly released series online ?

[@finnleykaiden467]

@Eliseo Randy i watch on flixzone. Just search on google for it =)

[@glenangelos6025]

I know most of this stuff but cant help getting a refresher before working on any bike especially from this guy Calvin,He is great!!

[@davefool6815]

I like this guy. He knows his shit. And is getting more confident and comical each video. I'm a fan dude.

[@dukesilvergold]

Everything Calvin said is spot on. What I learned through practice is that besides making sure H screw is “truly” set to align with the smallest cog without the interference of cable tension, you have to make sure there WILL be ENOUGH tension when you pull from the smallest to the second cog and back to 1. It is critical for this step to go as precise as possible. Therefore, after H is set, you need to taut the cable by pulling a bit and tightening the pinch bolt. However, it doesn’t need to be pulled extremely tight, you just need to have some space at the barrel adjuster to make it right. In another word, you need to be sure to be able to turn the barrel adjuster later counterclockwise a few turns to taut the cable to reach the cable tension necessary. It happens very often that when you want to step it down from the second to the smallest cog, the chain doesn’t move. Then you turn the barrel adjuster clockwise (even all the way in) trying to release more cable tension but still it won’t go. Sometimes it’s because you need a bit more from releasing H screw. Other times, there was not enough tension in the first place although you’re able to go from 1 to 2 without issue, it won’t spring back to 1 freely.

[@noneofyourbusinez]

Calvin My man!! Don't retire buddy, I look forward to every tech Tuesday!

[@ShermanSitter]

this guy is having a lot more fun this time than the last video I watched. I like it! :)

[@ShinobiDiabolik]

Happy 4-th of July! Back onto the subject. This is why when setting the derailleur, the limit screws are set without the cable, to allow the derailleur to move freely from one end point to the other end point, so we can limit the derailleurs real end positions. Only then the barrel adjusters are wind up all the way in, then you go 1.5 - 2 full revs out to give yourself some space for adjustment, shift to the smallest gear, while pulling the cable by hand and then attach it to the derailleur, and start the indexing process - setting the cable tension to be just the right one.

[@strokenumber3]

Calvin is the best, always clear and accurate advice.

[@nitrosite]

this. this video, I thought I knew a lot about bikes and i've tuned my derailer a whole bunch of times and it has been working perfect, but I went to check and low and behold my shifter cable was holding it in the lowest gear. I was always told to set the limit screws with the cable disconnected, and this is why, great video

[@clarencelaboranti4835]

I already knew all if this but man this video is extremely well made.

[@countertony]

I think that's the first time I've seen *how* the limit screw works to constrain the possible range of derailleur positions, as opposed to just what setting the screw is intended to achieve.

[@okhan21]

Same here. Very well explained and the graphics are very helpful

[@RGCastro7]

Excellent explanations and presentation. Thank you, Calvin and Park Tool!

[@v1d300]

Can't wait for this series. No matter how many times I index my gears I end up with skipping a few gears in between. Hope the series comes out soon.

[@okhan21]

Great video Calvin. Well explained as usual and the added graphics are very helpful in explaining exactly what the limit screws do. Thanks for your effort, much appreciated.

[@mauchu7]

Great demonstrations!

[@ZiggZagg11]

I love the Park Tool fireworks... :) and I look forward to more derailleur alignment videos...

[@ArthurFellig]

These videos are the best!

[@jeffbrunton3291]

Great video explanation, thanks

[@TivonSanders]

This 5 year old video just helped me figure out why my Alivio would not move closer to the 1st gear of my cassette, with adjusting my low limit screw. 😂🤦🏾 It was my cable tension (or lack thereof).

[@mnw1871]

This info isn't just for novices. I've seen more than a couple of bike techs make indexing adjustments without loosening the pinch-bolt, and setting the limits without the cable. This process makes it simpler, quicker and about as fool-proof as you can get.

[@JBLewis]

Great info, and great graphics in the videos! I'm looking forward to the new series!

[@MikeRyan77]

I am looking forward to this new series of videos. You always produce quality content. Thanks

[@cooperk4]

Wow, fantastic explanation, kudos

[@bobbyhempel1513]

I always set my limit screws with the cable detached from the derailleur.

[@benpatterson8924]

Thats a really great video! Well done guys!

[@niineisra]

Accidentally watch this vid just after I adjusted my rear derrailleur. I think I made this mistake. Gonna check it again.

[@michaelfabian2401]

Man I LOVE these helpful ass videos... Park Tool y'all are the BEST!!

[@kinc128]

Never seen a video showing it this clearly this quick. You guys really nailed it with the orange and blue markers. Keep it up!

[@that70sschwinn]

Great demonstration..

[@RoofRack2]

Superb graphics.

[@lilwillie428]

This was really helpful thanks.

[@PortalDazzel]

SO GOOD!

[@AbasAhmad]

Thankyou SO MUCH!

[@philiphamer4764]

Just a question, is there a standard place to have your limit screw set on the derailleur before fixing the cable and then adjusting it.

[@Fleischmann773]

Great vid, never thought about that!

[@geekmystique]

intense intro dude

[@leepl555]

I bet Calvin Jones' blue eyes are trademarked by Park Tool's blue.

[@ShermanSitter]

haha! Park Tool blue contact lenses! :)

[@ShermanSitter]

maybe one side is a magnifying glass?

[@NopeNope78]

So we first need to turn the barrel clockwise BEFORE adjusting the H limit screw?

[@Bangkokian007]

Great explanation Calvin, thanks. Also, what is the part number for the 'Park Tool' blue contact lenses you are wearing? :-)

[@jeffbrunton3291]

Does this also apply to the front?

[@RixterNow]

Another good video. BTW, is there a more precise way of indexing your gears than just eyeballing and listening? I'm surprised Park doesn't have a tool for that.

[@ShermanSitter]

that's a good question. I've never had an issue with the listening and feeling methods (how fast and clean the shifts are), but I eagerly await the response from the youtube community. :) I must confess, I haven't used the eyeballing method. I figure if its close the listening and feel will get you closer to the truth than your eyes, especially since those can be done under pressure of pedaling on the road.

[@richardcarr6493]

thanks that helped lots

[@chrisoattsjr]

Standard or metric nuts and bolts ?

[@alexr5819]

How can you do this with a Di2 system? Do you set the rear derailleur trim as far to the right as it goes?

[@yongling9825]

No, Di2 rear derailleurs still have limit screws.

[@GokkunGuru]

Would it be better to set the H limit with no cable and no chain to remove any and all tension possible?

[@parktool]

The chain is needed, because it is the dropping on to the smallest sprocket, and how it runs on that sprocket, that should determine the H-limit setting. Having the pulley exactly under the sprocket not the point.

[@ERIN478]

Thanks!

[@Himanshu_hdas]

Hi sir, my front shifter is too herd to shift how can i solve it..... front shifter is from shimano and derailleur is also from shimano tourney tz.......make a video.....plz

[@stevedion1753]

Couldn’t you mess up though if you kept turning your barrel adjuster clockwise, then tightening your H-screw more and more?

[@fallopianfungi5128]

I bought my first mtb after years of not riding (last rode as a kid on a bmx). I'm loving it, but I had never owned a bike with gears and when I got home realised the front gears wernt working. Turned out to be a cable problem. So I replaced the cables to my shimano shifters. Was proud of my self, first thing i ever fixed on a bike ha. Shifts up and down no problem! But now I have the problem where my chain is rubbing my derailieur (only when in low or high gears) and no matter how many hours I spend fiddling with the H and L screws I can't seem to get it lined up right at all. Now I'm thinking I need a new bottom bracket but tempted to just take it to a bike shop but really wanna fix it my self! Anyone got any advice ? I'd appreciate it alottt

[@yiyoink]

Shimano 105 shifters on SRAM Force mech? Weirdd. Was this compatible for only 10 speed systems?

[@parktool]

+Yo-yo these shots are using two different bikes. You are correct in thinking SRAM and Shimano components aren't compatible.

[@josereneducharme142]

The problem with your Tech Tuesdays is that I do my bike wrecking wrenching on Mondays.

[@Mighty_Duckie]

So which is correct? Limit screw is to prevent the over shifting and cable to control the shifting.

[@MichaelAJantz]

Set limit screws first: pre-cable install into R-mech, could we not?

[@Al-HasanKMalik-mt7gp]

The Derailleur Refused To Shift To The Smallest Cog I Tried To Loosen The H Screw And Loosen The Barrel Adjuster And It Didn't Work , It Only Worked When I Loosened The L Screw , Why ??

[@reluba]

Can anyone help me with this issue I have with my front derailleur? My chain rubs the cage of the derailleur when I'm on the big plate and starting with the 8th cog ( 9th and 10th also). I try to adjust the limit of the derailleur with the H screw but it doesn't move outer than that. I have full Shimano 105 for the record. It doesn't bother me that much because I only use the last 3 gears while descending hills (which are not very common where I live), but I want to know that I can access the full capacity of my bike :) I googled the issue, but didn't find a good fix. Hope anybody can pinpoint me in the right direction. Thanks and have fun on your rides!

[@parktool]

Sounds like if you add some tension to the system with a barrel adjuster at the shifter or at a stop it will solve your issue. Have you checked out our front derailleur adjustment video?

[@reluba]

@@parktool I watched the video now. Very well explained. Thanks, I'll see what I can do!

[@nestoras_k]

Heeeey!!! can you send me a pk 2?😂

[@gus7610]

It's frustrating when you need to carry on your bike to a bike repair store when you notice that trying to adjust by yourself the shifts of your bike only causes more problems...

[@jaimemiranda8265]

well, that kinda solve that problem..

[@CandyLemon36]

This content is truly impressive. A book I read with a similar angle had a transformative impact on me. "A Life Unplugged: Reclaiming Reality in a Digital Age" by Theodore Blaze

[@hawkli3690]

I stripped my H-limit screw hole

[@albertbatfinder5240]

It’s just not fair to be working in a clean, well-lit, fully-equipped yet spacious workshop, with a grime-free bike mounted on a sturdy ParkTool workstand. Heck, where is the challenge in that?

[@SnootchieBootchies27]

Yup. Always set limit screws with no cable attached and you won't make this mistake.

[@robotturkey2929]

I'm still waiting to see the skinny fat bike roll.

[@davidprock904]

I turned all my barrel adjusters to where they are fully tight and hard to loosen, Removed both limiter screws. It took me like 7 hours to get it flawless, and actually better shifting than I have literally ever had, I think I almost got the adjustment process down to a science. I live around people who love to .... choice words... fool around, and now it's harder for them to do so. At he end of the 7 hours, I have now thought of a took I could make to bring the time down to a few minutes with my setup, all adjusters fully tighten and limiter screws completely removed. Anyone else interested in this ?

[@chrisduke3251]

Yeah, good info, but no fix. Start with the cable removed in the smallest gear. Adjuster turned all the way in, then back out a couple turns. When set to perfect alignment, then connect cable. Go threw gears, and adjust barrel so that it shifts smoothly. At this point, check your H & L to see that they are contacting the limiting surface when everything is running beautifully. Done deal.

[@jeffbrunton3291]

Calvin, you look like you are going to garrotte someone when holding the loose cable. That's for Halloween, not Independence Day....

[@fiddleronthebike]

"the most common mistake"??? Sorry guys, but do you think most cyclists are complete idiots?????

[@NukaCub]

fiddler on the bike ... yes ;)