Results 4,526 to 4,550 of 13303
Thread: Ask the experts
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05-14-2021, 09:45 AM #4526
Yes, recommended to replace 11 and 12 speed chains at .5%. Doesn't mean that is the issue of your problem though and I doubt you'd notice shifting issues at less than .75% wear.
I have found that contrary to many comments on chain rings wearing out on 12 speeds when I do this they last a very long time. The 12 speed cassettes are very expensive, I'll go with changing my chain at .5% even if it "might be fine".
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05-14-2021, 12:17 PM #4527Registered User
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05-14-2021, 04:38 PM #4528
I doubt that it really makes much difference here, but if you have a choice a Calcium Sulfonate grease is more resistant to washout than more common lithium grease. Shimano ‘Special Grease’ and Motorex bike grease (just rebranded Motorex industrial grease) are Calcium Sulfonate. Tractor Supply has ‘Travellers Marine and Off-Road Grease’ which is a Calcium Sulfonate grease.
You’re probably only going to find NLGI 2 grease at the hardware store, which is the ‘standard’ thickness. Lower number is thinner, higher is thicker.
ETA: Calcium Sulfonate grease should be suitable pretty much anywhere on a bike except plastic. For plastic you should use a Silicone grease to avoid degrading it. Shimano SP41 grease for cables/housing is Silicone based with Teflon. Superlube also makes a Silicone grease with Teflon, but it’s not their standard grease, has to specifically say Silicone.
(sorry, went down a rabbit hole learning about grease a few weeks back)
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05-14-2021, 07:41 PM #4529
Ok so I checked the chain before riding with a ruler. Probably within 1/64th.
Rode 20 miles today and shifting was hit or miss. Lots of miss. A few times the main paddle on the shifter would get stuck in when shifting to bigger rings. Click 2 or 3 times on the other paddle to go down to smaller cogs and nothing happens. Chain stayed in the same gear.
Has the shifter randomly gone bad or can a bad rear derailleur make the shifter itself act weird?
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05-14-2021, 07:51 PM #4530Registered User
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sounds like the shifter is fucked to me
Lee Lau - xxx-er is the laziest Asian canuck I know
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05-14-2021, 08:05 PM #4531
Possibly just fucked/dirty? (raced in the mud a couple weeks ago)
Also maybe rear mech is slow from pivot points getting dirty? Guess I'll clean everything and if that doesn't work get a new shifter.
https://www.pinkbike.com/forum/listc...hreadid=199397
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05-14-2021, 08:10 PM #4532Registered User
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all the der does is move the chain over the cogs, all the shifter does is hold the cable in the right place so the der can do its thing, a bent der hanger can mess up exact shifting but thats no what this sounds like ... it sounds like a shifter probelm
Lee Lau - xxx-er is the laziest Asian canuck I know
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05-14-2021, 08:17 PM #4533
This shift lever not returning properly was (is?) a fairly common issue with Shimano road shifters. Spraying with solvent to clear out the hardened grease and then re-lubing usually worked. I personally used Slick Honey grease on all the places I could reach, and then dripped Tri-Flow into the spots I couldn’t.
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05-14-2021, 08:19 PM #4534
Hmmmm, comp cyclist reviews for the XT shifter point to the fact that there have been MANY failures with these shifters. Springs breaking. It was the very end of my ride 100yds from the truck that the main shift lever stopped returning. Good timing I guess? I'll open it up, but probably just gonna order a new one ASAP and hope it arrives soon.
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05-14-2021, 08:21 PM #4535Registered User
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Was just thinking that you were in the mud in Missouri, no?
New cables and housing before you take apart the shifter.
Sent from my SM-N975U using Tapatalk
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05-14-2021, 08:23 PM #4536
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05-15-2021, 08:55 AM #4537Registered User
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shifter fucked means its the shifter not shifting
before replacing i would lube all pivots on der/ lube cable/ lube the shifter
i usually don't lube shifters cuz lube can attract dirt but it sounds already fuckedLee Lau - xxx-er is the laziest Asian canuck I know
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05-15-2021, 11:17 AM #4538
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05-17-2021, 08:11 AM #4539
Well it looks like the wife's Guide R's are having the piston swelling/sticky lever issue. Any reason I shouldn't just order a new set of Shimanos?
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05-17-2021, 08:21 AM #4540
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05-17-2021, 08:24 AM #4541
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05-17-2021, 08:26 AM #4542
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05-17-2021, 09:06 AM #4543
We keep rebuild kits in stock, it's pretty straightforward to replace the MC piston and seals and that fixes it, plus you get a fresh bleed. However that does cost money. We charge $60 total per brake but I wouldn't be surprised for it to be more elsewhere.
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05-17-2021, 09:28 AM #4544
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05-17-2021, 09:36 AM #4545
My LBS has basically told me to pound sand for the sticky sram issue. Another shop also told my buddy they won’t repair them and instead just ordered a new set ( at full price).
So I guess it depends where you go but it’s nice that there are still some shops doing this!
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05-17-2021, 09:55 AM #4546
What pivot bearing grease does everyone prefer?
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05-17-2021, 10:02 AM #4547
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05-17-2021, 10:25 AM #4548
Kind of strange. it's not hard to do, the parts aren't expensive, and your brake will work like new afterward.
The guides on my hardtail were 5 years old when I had to rebuild the front and it works great. According to strava I got those brakes in june 2015 and have done 8500mi since. If I rode/cared about that bike anymore I'd rebuild the rear lever and maybe the calipers.
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05-17-2021, 10:59 AM #4549
I think they are just so swamped with covid they don’t even have the interest to look at if they have the parts, can warranty them. In all honesty have had some terrible service over the year since covid.
In good news my Magura’s showed up last week so once I get some down time from work I’ll be throwing those on. I’ll probably rebuild the sram for a backup/ buddy set, not worth selling with all the shortages.
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05-18-2021, 04:46 PM #4550
Grips for big hands...whatcha got?
Specifically...I've been using ODI Rogues for the last couple years because they are nice and thick. Recently put on some ODI Elite Flows - I love the lower-profile, less-squishy, more-direct feel. But they are noticeably smaller diameter, and made me hands a bit achey. My hands were wondering "why such a thin shaft" and "missing the usual meat..."
So: does anyone have recs for a lower-profile, less-squishy, more-direct BUT larger diameter than Elite Flows? Basically Elite Flow but larger diameter.
These Ergon GA2 FATs seem like they would work: https://ergonbike.shop/products/ergon-ga2-fat-1Last edited by meter-man; 05-18-2021 at 08:34 PM.
sproing!
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