Bicycle TutorBicycle Tutor

Show off your bike!

Welcome, Guest
You have to register before you can post on our site.

Username/Email:
  

Password
  





Search Forums

(Advanced Search)

Latest Threads
Strange Brake Wear?
Forum: Brakes & Levers
Last Post: garrett01
Yesterday, 06:46 PM
» Replies: 1
» Views: 1,344
Cleats
Forum: General Questions
Last Post: limey
11-25-2017, 05:40 PM
» Replies: 0
» Views: 572
Inexpensive bike support
Forum: Tools & Shop
Last Post: audrey27
10-27-2017, 09:57 PM
» Replies: 7
» Views: 5,025
Gloves?
Forum: Tools & Shop
Last Post: audrey27
10-27-2017, 09:54 PM
» Replies: 6
» Views: 3,418
Will this bike fit me?
Forum: General Questions
Last Post: amandasmile
10-20-2017, 07:55 AM
» Replies: 0
» Views: 1,876
Tire help
Forum: Wheels & Hubs
Last Post: RichieSteele
10-19-2017, 01:52 PM
» Replies: 0
» Views: 1,796
Fork lube (+ others)
Forum: Lubrication
Last Post: ishvii
10-19-2017, 07:11 AM
» Replies: 2
» Views: 1,789
New 3 speed hub with coas...
Forum: Brakes & Levers
Last Post: Furcursto
10-18-2017, 08:29 AM
» Replies: 1
» Views: 1,722
Problem with my Front Der...
Forum: Derailleurs & Shifters
Last Post: kazz
10-17-2017, 08:12 PM
» Replies: 1
» Views: 2,641
Shimano FH-1055 Rear hub ...
Forum: Wheels & Hubs
Last Post: flor1n
10-10-2017, 11:08 AM
» Replies: 0
» Views: 1,906
Unbend old bike
Forum: Frame & Forks
Last Post: dude
10-09-2017, 06:35 PM
» Replies: 0
» Views: 1,913
Front Derailleur/Shifter ...
Forum: Derailleurs & Shifters
Last Post: kazz
10-06-2017, 02:28 AM
» Replies: 0
» Views: 2,357
How to store spare tube/p...
Forum: Tires & Tubes
Last Post: josephturner
10-05-2017, 04:00 PM
» Replies: 5
» Views: 7,239
where to start?
Forum: Derailleurs & Shifters
Last Post: debrichard
10-03-2017, 04:30 PM
» Replies: 0
» Views: 2,504
My derailleur is out of p...
Forum: Derailleurs & Shifters
Last Post: sodej
09-29-2017, 07:02 PM
» Replies: 0
» Views: 2,403
Cleats
Forum: Bikes & Components
Last Post: limey
09-29-2017, 02:07 PM
» Replies: 2
» Views: 2,681
Rear shock question
Forum: General Questions
Last Post: lupacexi
09-27-2017, 01:07 PM
» Replies: 0
» Views: 2,434
Locked up Shimano SG-7C18
Forum: Derailleurs & Shifters
Last Post: Jakobberry
09-24-2017, 08:06 PM
» Replies: 0
» Views: 2,645
Crank Rookie
Forum: Cranks & Pedals
Last Post: painkiller
09-18-2017, 11:13 PM
» Replies: 5
» Views: 2,611
Thrift store find - pleas...
Forum: Show off your bike!
Last Post: dalrph94
09-13-2017, 11:35 PM
» Replies: 0
» Views: 2,612

 
  SRAM rear derailleur arm length
Posted by: jacke - 06-28-2017, 04:52 AM - Forum: Derailleurs & Shifters - No Replies

I am riding a Bianchi 928 with SRAM Red components.  I have a 10 speed 11x28 cassette.  I am replacing my rear derailleur since the guide pulley cogs are now worn to sharp points.  The present derailleur has a short arm.  SRAM seems to have 3 sizes of derailleur arms for a 10 speed cassette; short, medium, and long.  The 28 cog gear still works will with my short derailleur.  I heard that you need a longer arm if you have a bigger gear but I am not sure if that is true or not.  Is there any reason I should not replace my short arm derailleur with a medium length arm?  Are there advantages or disadvantages to either?


  Chain getting sucked in by fat tire
Posted by: Foozen - 06-25-2017, 05:55 PM - Forum: Chain, Chainrings & Sprockets - Replies (12)

Hi, my chain on a 2016 Specialized fatboy keeps getting sucked into the tire and comes off when I am in the top gear coasting. I have had multiple bike shops look at it and they say that those bike are not made to be in the top gear which sound ridiculous to me. It also been suggested that I change the front sprocket from a 28 to a 32. Also the chain measured fine. Any suggestions?


  Repairable Deore LX shifter?
Posted by: dude - 06-23-2017, 01:39 PM - Forum: Derailleurs & Shifters - No Replies

I have a Deore LX shifter like on this photo

The push button at the bottom doesn't catch the piece inside unless I press slightly up when I shift.

Is that fixable or do I have to change the part?

Thanks!


  Getting a new bike and needing some tool help
Posted by: FixitTom - 06-21-2017, 03:08 AM - Forum: Tools & Shop - Replies (1)

Hello Bicycle Tutor forum,

I am here today because I am looking for some information from you guys if possible. As you can see from the title I am in the process of getting a new bike and I would like to get some tools to fix it up when something goes wrong. Now, when it comes to anything mechanical, bikes, motorbikes, cars, etc I am terrible at fixing them but all I can remember as a child is going through bikes like they were nothing, so when I get my new bike I want to learn as I go.

The bike I have coming is a Specialized Epic FSR Expert Carbon and I don't expect anything to go wrong anytime soon. I assume when the bike gets here I will be in pieces so my first question, what tools will I need to first assemble the bike? Then as above, what tools should I purchase to maintain and fix my bike when needed?

I already have the garage space emptied and ready for tools and assembly, ready to get out on the road again. Really looking forward to speaking with you guys. if there is any other information you need, please let me know. All replies are greatly appreciated.

Thanks

[Image: e5a73c204e937b24aa7819b99aa37db4.jpg]


  Installing an IGH in a Trek District SSB
Posted by: mikkel - 06-20-2017, 04:21 PM - Forum: Wheels & Hubs - No Replies

I own a Trek District SSB, which uses Trek's proprietary belt drive system. I'd wanted a bike with an internal gear hub, but they only offered a 3-speed version as an upgrade, so I decided to buy the SSB and upgrade it myself to something a little beefier.

The SSB has the same frame as the IGH 3, so it already has the cable guides for the hub. I'm going to take my bike to a local community shop to do the conversion, so I should have people on hand to help me with any problems I run into. What I am looking for help with is my shopping list (although warnings and gotchas are welcome).

The IGH 3 claims to use a Shimano Nexus 3-speed hub in the specs, but shows a picture of a Shimano Alfine hub. Would this work, plus this shifter? Will I be able to swap the drivetrain components over from the SSB to the new hub, or do I need to order replacements for anything?

Thanks in advance.


  Head Stem Replacement
Posted by: mtcayman2700 - 06-17-2017, 08:39 PM - Forum: Headsets - No Replies

I am trying to remove the head stem on a Jamis X3.  The top screw will turn but, not release.  The head stem is not separating as seen on instructional videos.  What I am doing wrong?

Thanks,
Brian


  транспортерная лента
Posted by: Michaelheabs - 06-14-2017, 04:32 PM - Forum: Show off your bike! - No Replies

транспортерная лента
More info!

95qyqvo8BS

871w 1082


  Riding a Charity ride without paying??'s
Posted by: !TREK4ME! - 06-08-2017, 05:11 AM - Forum: Bicycle Culture - No Replies

Hey Guys,
I enjoy riding my bikes anywhere and everywhere I can, just like you guys, I'm sure yall do too. My question is that there seems to be pay rides all the time, but not much non pay rides. Why do people pay good money to do this? We can ride the roads, anytime and everywhere, without having to pay a fee to ride them. I know, most pay rides have support and sag vehicles, but I don't need it. I bring mostly what I need to repair problems and to eat and drink. Plus, there are usually stores along a route to refill water bottles, etc.
I have done plenty of centuries and ride just about every day I can. I relize that the bicycle is a very reliable means of transportation. Why do people pay good money to ride? Sure, it's nice to ride with other people. I enjoy this too, but must we pay to do that? A $40.00-$50.00 entry fee is crazy. I don't mind paying something, but those rates are too high... That's a tire that I might need on one of my bikes. I know, "Pay to Play", but I'm already having to do that with the bicycles and keeping them going. Maybe I'm just cheap, but I want to ride, and I like to ride, and that was kinda the reason I started riding again...it's cheap transportation with good benefits to your body(exercise). It's no wonder that most people in America are obese and we have the highest rate of Diabetes and Heart disease.
My local bike shops are charging people fees to be a member, so you can see the rides and times of local rides. If people don't pay the fee and don't become a member, then they don't ride. Didn't use to be this way, but this is what they are doing now. It doesn't help that the bike shops are all owned by one guy, his wife and his sons are running the other two(three bike shops in my city). They have no competition and run the city and the people the way they want too(corruption). They(bike shop owner, wife and son's) are real religious and really pour this on in front of everybody, but lie with just about every sentence that comes out of their mouths. They are Total Hypocrites !!!
Just Want to Ride...and not have to Pay for it !!!!!  


  Broken Saddle Bar/Spring
Posted by: Eugbug - 06-04-2017, 08:16 PM - Forum: Saddles & Seatposts - No Replies

So this is the second time this happened. The bar broke on the other side, but I replaced the section (lost somewhere on the road) and welded with stainless steel rods. Hasn't broken after 3 years and several thousand miles of bumps.
These bars are about 8 mm diameter. Is it normal for this happen after miles of travel (about 7000 miles) due to metal fatigue? Should I moan to Giant/Velo Saddles about their crappy steel, or move on and forget about it? I had the seat moved a good bit back on the clamps to increase the seat to pedal distance (bike slightly undersized) so bars may have been over cantilevered and result was probably partially my own fault.

[Image: WP_20170604_001_zpsl0eiwjiz.jpg]

[Image: WP_20170604_004_zpstct5fyvr.jpg]


  Brake boss sizes???
Posted by: RustyChayne - 05-19-2017, 10:53 PM - Forum: Brakes & Levers - Replies (5)

I replaced a cheapo suspension fork with a Nashbar chromoly rigid fork and really like the way it feels. Continuing with the upgrades I thought I'd replace the C-Star V brakes with some quality Shimano Deore V brakes BUT this wasn't as easy as I suspected. While my brake bosses are apparently the correct diameter the shouldered portion near the attachment point on the fork is too long or perhaps more precisely the Shimano brake arm is too shallow. Either way they don't fit. The brake arms will not go on the boss far enough before bottoming out to allow the spring tail to go into the hole. I'm aware that there are both 10mm and 8mm bosses but can't seem to find any info or various sizes with regards to the length of the shoulder. There are obviously bosses made that these Shimano brakes will fit unless Shimano is sell these things and people are just putting them in their assorted parts boxes like I did. Does Shimano manufacture a unique brake boss just for their V brakes? The bike world and it's non standardization is maddening sometimes. Any help is greatly appreciated  


  Road Bike Rear Derailleur Problem
Posted by: Lighttower - 05-18-2017, 10:39 AM - Forum: Derailleurs & Shifters - Replies (5)

Yesterday 5 meters away from my destination my rear derailleur suddenly "snapped". I though at first that the cable broke, but no. I flipped the bike around and started shifting and it looks like it kinda "works" but it suddenly doesn't want to shift into the lowest gear (the biggest gearsprocket). I rode back home just fine, but I am a little bit worried and I am not sure what happened.

It is a Shimano RD 2300, I tried to find a replacement but I think it is pretty much sold out. I tried to look for other Shimano 2x8 rear derailleurs, and I found these:
RD 2400 and RD 3000

-

My questions: Should I go to my local bike shop and ask them what my problem is and get it fixed? Which will probably cost 100€ or more.
Should I buy one of these rear derailleurs and try to replace my old one myself?
Should I buy a new "groupset" and upgrade to 2x9 or even higher?
Should I just simply buy a new bike? The old one has around 10000-15000 km which isn't that much, but I would need to slowly replace the brakes, the front shifter, the crankset and bottom bracket and the cables. I just bought new rims and a cassette.


  42 chainring
Posted by: limey - 05-04-2017, 02:57 PM - Forum: Chain, Chainrings & Sprockets - No Replies

I fitted a black 105 5800 compact chainring set (50/33) when I built my new bike. I prefer the 50 chainring cos, on our flat terrain, I can push it, but I can't push a 52 0r 53.  However, I would like to change the 33 inner ring for a 42.  I have found some rings with the same PCD, but they all seem to have some qualifications which I don't entirely follow.  Is there a straight forward way to do what I want?


  Magura Clara disc brake spongy after bleeding... Videos showing piston action
Posted by: rhubear - 05-03-2017, 11:02 PM - Forum: Brakes & Levers - Replies (1)

This bicycle bought 2nd hand, no idea of its history.

This particular caliper is front brake (Magura Louise brake handle!)

Managed to figure out how to bleed both brakes...  One Clara brake handle, one Louise! Connect syringe with Magura oil on caliper. Open reservoir on handle, fill reservoir with syringe (if not already), slowly operate handle until reservoir near empty, then fill reservoir with syringe again. Bubbles will enter reservoir during this process to "bleed" the system.

Back brakes operating nice and sharp / firm after bleeding. Front brakes very spongy, as if only one piston operating.

From what little information I can find regarding Clara or Louise brakes, I understand that these older brakes have only one (1) active piston (I think the inner one supposed to be inactive and permanently placed almost touching the disc?). However my videos show that both these pistons seem to be active.

My videos show that the outer piston presses into the disc and actually presses the disc over nearer to the inside piston. The inside piston moves a little.

The inside piston needs to be protruding more or have more travel (movement).  I've seen plenty of advice how to "reset" pistons back into the caliper by pushing them back in but no information about how to draw them out more. I assume this is not possible?

The whole action of this front caliper is so messed up!

How to correct if possible?

Links to videos and photo stills :  (uploaded to Yandex Space)


You can download the files here:

Magura Clara Caliper.jpg
https://yadi.sk/i/UE1uxXug3HdVVt

disc not centered.jpg
https://yadi.sk/i/MOAWUNk33HdVVd

inside piston 1.mp4
https://yadi.sk/i/nuNCn7e13HdVVe

inside piston 2.mp4
https://yadi.sk/i/nrZP4r8D3HdVVk

outside piston.mp4
https://yadi.sk/i/zEtZGxyn3HdVVw

Please update me if these links do not work in some way...


  Strange metal part on real axle '86 schwinn
Posted by: SkyFlake - 04-27-2017, 02:48 PM - Forum: Wheels & Hubs - Replies (1)

I bought an old bicycle and see an unusual metal part attached on rear axle. Derailleur side. Starting from end I see a closed (no hole) bolt, two washers, then this "handle", a washer, then a deep nut, then a washer, then the derailleur, and then the bike frame. "Handle" is about one inch across and three inches deep, quite thick metal...flat but one edge has a perpendicular flange about 3/8 inch. No marks on handle. I think bike is a 1986 Schwinn Sprint made by Giant, with 24" wheels made in Taiwan by Femco (tire size a problem). I have a digital photo but it would not paste here. What is the function of this "handle"? Thanks.


  Schwinn Meridian Rear Wheel Bearings
Posted by: Tyro65 - 04-08-2017, 09:26 PM - Forum: Wheels & Hubs - No Replies

I think the rearing bearings are 13mm ID and 30mm OD. Are these measurements correct? Please help.

Thanks.


  New wheels
Posted by: JFM - 04-06-2017, 04:14 AM - Forum: Wheels & Hubs - No Replies

I have a 10 year old Trek 7200 Hybrid. I am thinking of replacing the wheels in a while and was wondering what you guys could recommend. It came with Matrix 750's but they are no longer available. I tip the scales around 230lbs. and am looking to spend around $300. any suggestions.


  Trouble fixing gears
Posted by: dhat90 - 03-18-2017, 06:12 PM - Forum: Derailleurs & Shifters - No Replies

Hey, i hope this is the correct subforum

The bike gear cables broke and Im trying to replace them. BUt it's my first time, and I've run into some trouble. I can't seem to get the correct tension in the cable, or there's something wrong with the thing thats supposed to shift gears. I took a video of it. The same tension works for two different positions in the gear shifter thing. How do I fix this?




  Problem with Deore DX Shifter
Posted by: villemiami - 03-13-2017, 02:39 AM - Forum: Derailleurs & Shifters - Replies (3)

[Image: IMG_20170205_162903.jpg]
[Image: IMG_20170303_103150.jpg]
I have a problem on my Front bicycle derailleur. I'm new to bike repair so I'm not sure of using the right terms. The chain is on the largest chainring in the front and when I use the small pusher on my shifter, I can hear a click but the chain doesn't move to a smaller chainring. I read online some advices and I removed the cover of my shifter, I put WD40 first, waited a long time, then put triflow, but it didn't fix the problem. In the shifter, I don't see any cable, I don't know where the cable is supposed to be.
Is there a way to repair it? If not, should I buy a new shifter? If yes, does it have to be a 7 speed shifter also? I'd prefer to buy on eBay, but I don't want to spend more than $25 (or else I would sell my bike for $50). Is it difficult to remove the old one and install a new one?


  Replacing parts
Posted by: Kangs - 03-11-2017, 08:00 PM - Forum: General Questions - Replies (3)

Something got caught in my chain, I think near the rear derailleur. Anyways, the rear derailleur is broken and I need to replace it, the chain too. Its a Walmart bike so i'm not sure what I should do for finding the measurements, but I do know its this. Its generally a really cheap bike so I want to find some new parts, or part specifications that are compatible. I thinks the gears are a 9x3 with twist shifts. If there's anything that could help performance like changing the cassette or chain rings, that would be helpful, but for now I need help finding a rear and most likely a front derailleur that is compatible. I know that bike chains and cassettes can have different spacing, and derailleurs can have different pull ratios, but I don't trust myself with this. Any help would be appreciated!


I'm also looking for a rear shock and a fork, I need to go with an air shock so I can adjust it, i'm too light for my shocks to take effect right now


  Knocking sound
Posted by: dwc7 - 03-05-2017, 01:42 AM - Forum: Bottom Brackets - No Replies

When I ride in a fairly low gear, about the 4th or 5th easiest gear and am peddling pretty hard, I hear a knocking sound that sounds like the bottom bracket, difficult to tell though. When I ride harder in even lower gears, it doesn't knock. Very confusing. I've just had a major maintenance completed at a good shop but it still happens. Any ideas out there about what it could be? Thanks!

Dan




ISSN 1918-3445 © Copyright 2007-2010 Bicycle Tutor / Privacy Policy / Created by Alex Ramon

feed