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Thread: Ask the experts
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07-01-2020, 10:41 AM #1176
Go to a shop that has a rear derailer hanger tool. It goes on to the hanger and has a bar that measures the distance from the hanger to the rim. I recently spent two hours thinking I had a hanger straight, and not picking up every gear clean. Guy bent it back with one of these tools in about 45 seconds and it has been perfect since. I now have a back up hanger for each bike. I wasted two hours trying to get that freakin thing right and for the cost of a six pack, they fixed it in an instant.
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07-01-2020, 11:48 AM #1177
the screw inside my front brake lever gradually works its way forward like this over time, which brings the lever very close to my knuckles. is this just a result of me riding the brakes like a bitch? something wrong? my "fix" so far was to take a pair of needle nose pliars and pinch the end and twist it the other way, but that takes forever, and eventually it works its way forward again.
easy fix? shop? Im gunna die? my shop has a long-ass wait so I'm inclined toward DIY if it's feasible. fwiw I screwed it back in place and the brake works fine (the brake seems to work fine even when the lever is close to the bar, but I feel like if I just let the screw go then eventually I won't have enough range to activate the brake... also it's annoying/uncomfortable). tektro hd m275 brakes fwiw, which are otherwise great.
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07-01-2020, 11:50 AM #1178
Try loctite blue first.
Then red.
Then, as a last resort, green. (Not actually recommended)Forum Cross Pollinator, gratuitously strident
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07-01-2020, 12:01 PM #1179
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07-01-2020, 12:22 PM #1180Registered User
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- Aug 2008
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- Central VT
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- 4,808
It’s a standard GX 11 speed so I don’t believe I can modify it or replace any cogs. I may be wrong but don’t think it’s possible. Having an XD driver limits cassette options but e13 and Garbaruk make good, but pricey, wide range options as long as my X1
derailleur can handle the 46t bail out gear. Still cheaper than a new new wide range 12 speed set up.
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07-01-2020, 12:55 PM #1181
e13 also has a 9-42 version if you don't want to risk the derailleur not clearing a 46t gear. Would need to pair with a smaller chainring to gain any more low-end though
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07-01-2020, 02:56 PM #1182Registered User
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- Mar 2008
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- northern BC
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- 31,081
ya and so what if its not a bent der, what if it still skips cuz the whole drive train is fucked, the bike store missed out on $$/ business and the endloser is unhappy cuz the bike ain't fixed ?
A shop has to make money for the owner and provide great service to the customer, SO the bike should go in a shop stand with the customer watching/inputing to pinpoint what is fucked, fill out a work order, get a phone # maybe attempt to upsell the customer some shit and put the bike in the to-be-fixed rack cuz there are paying customers 2+ weeks ahead of this one
the shop that doesn't do this ^^ all properly won't be in business for very long ... then you got NO bike shop
My buddy told me the shop wants 67$ for a tuneup which will be weeks away so do I want to make 67$ and BTW there is lots of business to be had cuz bike stores are going crazy rihgt now ? So I replaced her cable & housing/ tweeked her der hanger which will probably get me a nice bottle of wine
On the test ride I decided I had over formed that hanger with the vice grips so I threw it on the ground and stepped on the der ... perfect form !Lee Lau - xxx-er is the laziest Asian canuck I know
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07-01-2020, 03:13 PM #1183
A non-mechanically inclined but cheap as shit buddy asked me to look at his drivetrain yesterday after it developed some random chain slap. The clutch on his Shimano XT M8100 derailleur seems to be fucked, I haven't opened it to check but the switch has very little resistance and feels like it's not connected to anything (unlike on my derailleur where flipping the switch requires some force and I can clearly feel something moving in the clutch assembly). I also don't feel any difference in tension between the on/off position.
I found a number of vids on clutch rebuilds and it seems like the parts are cheap. Worth a rebuild it or should I tell him to just buy a new derailleur and endure the bitching??
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07-01-2020, 03:27 PM #1184
The clutch requires frequent service, and Shimano nexus specific grease. If the clutch seized and the derailleur was forced down it would have snapped off the plastic bracket that hold the tensioner bolt. This has been a common problem on the 8100's. They have only been on the market less than a year (actually officially since June 14th 2019) so it should be cover under warranty, problem is there are none in stock for warranty replacement.
There are still some SLX M7100 available. For $75 I'd buy a SLX and have the shop warranty (backorder the XT) the old one.
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07-01-2020, 04:04 PM #1185
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07-02-2020, 01:16 PM #1186
I owned a bike shop. If a customer thought his der hanger was bent I would throw it on the stand, pull the der, and check the hanger. Total time about 4 minutes. Doing easy stuff like that for free gains customers and reputation. Plus, you have the oppotunity to sell a der hanger if bent, or a tune if not.
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07-02-2020, 01:33 PM #1187Registered User
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- Mar 2008
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- northern BC
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key word owned
Lee Lau - xxx-er is the laziest Asian canuck I know
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07-02-2020, 03:24 PM #1188
Thats the bike shop spiral. You have to recognize your clientele. Things that dont cost you and hain customers are things like that. A couple minutes goes a long way. Chances are they circle around the shop or block and come back and by a t shirt or something while the hanger is getting checked.
Another good one is to send back ,potential customers, warrantee stuff. Its ez to include it in the bike shops warrantee return shipments when those shipments happen. Costs zero and gains customers.
Shops with new bikes that are 2 and 3 years old stock are a sure sign of failure. Give a deal. Get them off the floor. Gain some degree of customer loyalty. Those same shops that nickle and dime and never give a deal get tighter and tighter as their customer base drops. Its like dominoes. A vicious cycle. Its a taxing and tiring business. I have empathy for shop owners and shop rats but the bottom line is happy customer, happy business.
Another mistake i see shops making is not stocking parts. You have to know your market and stock the right stuff. Especially now as bike sales are going crazy and distributords are low on stock. Invest in your business now with your added income. Buy additional stock on things that are guaranteed to sell. Make that added income work for you and multiply profit and keep the customer flow so they dont have to go online
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07-02-2020, 07:34 PM #1189
For brake bleed kits (for Shimano) what does the black device do - I get what all the other pieces are for.
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07-02-2020, 07:57 PM #1190
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07-02-2020, 10:32 PM #1191
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07-02-2020, 10:40 PM #1192
The speed clamp? I've never used one but maybe for holding the brake lever depressed?
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07-02-2020, 10:46 PM #1193
speed clamp - ok Thanks! that may help. I see this "Shimano professional brake bleed kit" for sale many places but nowhere I could find names the parts included - nor does any youtube or website instructions show this device being used. Even now googling "brake bleed speed clamp" doesn't turn up anything. Guess it's probably not a necessary piece.
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07-03-2020, 10:18 AM #1194
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07-03-2020, 11:44 AM #1195
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07-03-2020, 03:28 PM #1196
Zip tie
Sent from my iPhone using TGR ForumsHowever many are in a shit ton.
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07-03-2020, 05:10 PM #1197
Or any rubber band, you would just have to disasssemble one end of the shock to slip it on. But a zip tie is easier.
Forum Cross Pollinator, gratuitously strident
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07-03-2020, 06:48 PM #1198
Measure the bottom bracket height unsagged and then sagged. Use calculus to determine the leverage ratio of your suspension at your desired sagged percentage, then divide the difference in your bottom bracket heights by that leverage ratio to determine the amount your shock has moved. Divide that number by your shock stroke to determine your sag.
Or just use a zip tie like a quitter.
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07-05-2020, 06:06 PM #1199Registered User
- Join Date
- Mar 2011
- Location
- LA
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- 293
Though it was working fine, I thought I'd "service" my no-name floor pump after 20 years of use, so I dipped the plunger in a bit of STP oil treatment. Mistake! Now the plunger just slides down the bore w/o compressing any air into the hose. I cleaned it off and tried some sticky, stringy wheel bearing grease but same result. So, until I can source a Birzman Fatty stateside, what can I do to get this working again? Soaking it in some power steering fluid with leak-stopping seal swelling additive is my best guess. I'd really rather not have to rely on the old small-bore Silca. FWIW, it's ot the o-ring style plunger, but rather the type that has the concave side facing down to compress.
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07-05-2020, 06:41 PM #1200Registered User
- Join Date
- Mar 2008
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- northern BC
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- 31,081
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