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Lower back pain while rid...
Forum: Riding Techniques
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03-20-2017, 01:42 PM
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Problem with Deore DX Shi...
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03-12-2017, 01:07 AM
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Knocking sound
Forum: Bottom Brackets
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How to remove wheel with ...
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WD40 is not the best
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Front derailleur shifting...
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Lessening resistance on w...
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Chain issue
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02-24-2017, 04:45 PM
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Knocking sound coming fro...
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New cable stretch?
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Health Benefits of Cyclin...
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Right Knee Pain
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02-23-2017, 11:20 AM
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Tubeless going flat
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Yet another clicking thre...
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01-22-2017, 02:08 AM
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No action on wheels in co...
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Axle too long
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12-11-2016, 02:46 AM
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  Any idea what could have happened to my rim?
Posted by: CaptainJones - 08-02-2016, 07:00 PM - Forum: Wheels & Hubs - Replies (3)

[Image: IMG_3671.jpg]
So today I got a flat tire (unrelated, it was a nail, extracted, repaired. All good) and when I pulled over to try to find what caused it, I noticed that my rim was rubbing the brakes the way it does when it's out of true because of a broken spoke.
The spoke is fine. It's the RIM that's been damaged, and that has damaged my calm some. I took it to my usual bike shop, guys are pros, figured they'd have an answer, no such luck. They gave me vague language about how it "looked like it had been hit pretty hard," and that they "see it all the time," but were unable to tell me WHY damage like that could occur, how I could prevent it from happening again, or whether it was something wrong with the rim. They even took pictures of the rim before they handed it back, one was clearly puzzled by it.
Worth noting is that I typically replace my own broken spokes, and true my own wheels; I've been doing it for decades and my proficiency is fair. I don't over-tighten my spokes, if anything my hand is gentle. But the spoke pictured is original to the wheel, so it's not like I over-torqued it with a spoke tool or anything. The spoke on the opposite end, as well as the ones on either side, are also original to the wheel.
Wheel is a Forté Terramax 26", brakes are rim brakes, rim was appx. 2 years old, many miles covered but all on street, all very cautious.
Just looking for answers here, anybody have any idea what could have caused this?


  Front derailleur won't shift into third (largest) gear
Posted by: bruin1989 - 08-01-2016, 02:46 AM - Forum: Derailleurs & Shifters - Replies (1)

I have recently been trying to teach myself more about bike maintenance by doing the work myself (I know horrible idea Smile ).  Recently I noticed that my chain was rubbing on my front derailleur so I went and altered the high/low screws on the derailleur.  Initially it wasn't moving when I was fiddling with the screws, and in an instructional video they suggested loosening the nut(bolt?) that holds down the shifting cable to allow the derailleur to reset to it's natural position before setting the high/low screws. I got it all going smoothly on the lowest (smallest) gear, and re-tightened the nut on the cable, but now when I try to shift to third it won't go.  Additionally the cable feels way too tight when I try to shift up to third.  I fiddled with it some more and managed toe get it to third, but I noticed that the red markers that show which gear it is in is way to the left, (far past) where it would normally line up with the 3 marker. I'm somewhat befuddled as to what has happened, though I have a strong suspicion I may have redone the cable improperly.  Any ideas?


  Re-seat steerer tube into forks
Posted by: RockyRoader - 07-31-2016, 09:27 AM - Forum: Frame & Forks - Replies (2)

Hi,
the steerer tube on my bike is rotating freely in the forks. Its a Focus Urban/Planet, about 4 years old.
I think it was twisted in an accident I had a month or so ago but I didn't get the rotation until I'd been riding it for about a week.
Anyway, Focus reps suggest replacing the whole fork/tube assembly. It looks like a press fit to me and it was rotating with no indication of vertical movement. Is welding acceptable (aluminium or alloy). Or is there a way to re seat the press fitting? Looks like some lock tight on the tube but not where it's doing anything.

Thanks

Edit, on a closer look it looks like there's something (weld/braze?) that's chipped around the bit where the tube was anchored to the forks.

https://drive.google.com/open?id=0B3r1hTsPGcQbdkNwa2d4NzQ1Ulk
https://drive.google.com/open?id=0B3r1hTsPGcQbeU5UWHNsTzdEems
https://drive.google.com/open?id=0B3r1hTsPGcQbaHlVdU8yaTF1Y1U
https://drive.google.com/open?id=0B3r1hTsPGcQbZzJEZ04xX0Q5ZEE


  Are my hairline cracked or broken carbon fibre handlebars broken or useable?
Posted by: ponyopo - 07-28-2016, 05:05 PM - Forum: Stem & Handlebars - Replies (1)

Are my hairline cracked or broken carbon fibre handlebars broken or useable? Can they be easily repaired?
They came with a bike second hand. I didn't notice it till I took the bar tape off. I haven't ridden them.
It looks as though the broken and cracked areas may just be fairings that wouldn't affect structural strength but I don't know for sure. I have seen carbon bars that don't have this bit.
Can anyone shed any light on this? Can I do a strength test at home?

http://imageshack.com/a/img923/3896/crYh66.jpg
http://imageshack.com/a/img923/2861/sWFf1K.jpg
http://imageshack.com/a/img923/9954/cID1Ji.jpg
http://imageshack.com/a/img921/3108/Bl3zeg.jpg
http://imageshack.com/a/img923/7339/XTJoU1.jpg
http://imageshack.com/a/img922/7231/K9TGHI.jpg
http://imageshack.com/a/img921/1668/2sJHbA.jpg
http://imageshack.com/a/img922/5262/YpWv6s.jpg
http://imageshack.com/a/img924/5940/JF62Df.jpg


  Chain slipping off gear shifter(?)
Posted by: ashw - 07-26-2016, 12:43 AM - Forum: Chain, Chainrings & Sprockets - Replies (4)

i've recently started riding my bike for exercise. was going well for a couple weeks, but a few days ago the chain on my bike has been slipping off of what i think is the gear shifter. it is very annoying and i haven't been able to ride my bike because of it.

Edit More info: i have a Schwinn Ranger 10 speed. the gear only slips like that in high gear. it does not slip while in low gear.


i have a video of basically what happens. can't get a video of it while riding. it is a video of it slipping off stationary.







if i could get an idea of how to fix it, id appreciate it. thanks.


  Restoring extremely rusted rims on bike
Posted by: aegis - 07-24-2016, 09:25 AM - Forum: Wheels & Hubs - Replies (5)

Hi

We have a hand me down bike which has been in the family for 30+ years. It's original ower is now in her fourties!!! I'm attached to this bike because the memories I have with my dad riding it.

It has rusted underneath the chrome coating it had so it now all pitted.

I was wondering, can I respray the paint back onto the rim?


  Bicycle parts: Identify
Posted by: BikeDIY - 07-19-2016, 11:18 PM - Forum: Bikes & Components - Replies (1)

Can someone kindly identify the bike used in this video?

im looking for an exact model if at all possible, Thanks!

https://www.youtube.com/watch?v=uwY8YvRSafo


  Rear wheel noise - help please
Posted by: luckstar69 - 07-19-2016, 10:42 AM - Forum: Wheels & Hubs - Replies (4)

Hi everyone,

I have a very annoying creaky/rubby noise that I cant shift although I have narrowed it down to the rear wheel and not the bike.

I have a Giant Propel Advanced SL 0 Aero Race Road Bike 2016 3 months old and 1,000 miles with the SLR 0 Aero wheels 55mm.

The noise noise only happens (always takes 10 mins to warm up) when I'm seated and putting some power down uphill or on the flats. Now I know its not the BB as I have put my friends Mavic rear wheel on my bike and my SLR r/wheel on his Scott and he gets the same noise on his bike. He's 60kg and I'm 90kg and the noise was the same on his Scott Foil and on my Giant.

We swapped over the QR's and greased them and it made no difference.
I have tried 25mm contis and 23mm Giant factory tyres and it made no difference
I have lubed the spokes and no difference
Taken off the metal valve holder things and no difference
Check for brake rub - none

I'd be very grateful if anyone has an idea of what this noise cold be and how I could cure it?

Thank you


  Front derailleur can't shift from inner chainring to outer...sometimes
Posted by: Ptero - 07-17-2016, 07:09 AM - Forum: Derailleurs & Shifters - Replies (2)

So I'm having a very strange problem. I have an old 10 speed Chimo with friction shifters on the stem. A few months back I noticed that when I downshift to the inner chainring, my front derailleur can't shift it back up to the outer chainring. I put it off and only used 5 gears till I tried to fix it today. I flipped the bike upside down and played around with it and it shifted perfectly back and forth. I then righted the bike and had someone hold up the back tire. It also shifted just fine. But when I rode it, once again it refused to shift back up to the outer chainring. Any ideas what this could possibly be? Could my weight while riding be doing something that I'm not noticing? It's driving me bonkers!


  Cleats
Posted by: limey - 07-12-2016, 02:10 PM - Forum: Bikes & Components - No Replies

Does anyone know if the rubber inserts in 'red cleats' can be purchased separately and if they can, where?  My cleats are like new, but the rubber has worn down to where the plastic cleat touches the pedal face and creaks.  Thanks.


  Bottom bracket... Strange style I haven't seen before?
Posted by: Quixoticish - 07-10-2016, 05:42 PM - Forum: Bottom Brackets - Replies (1)

Good afternoon internet hive mind. A friend has inherited a bike that has a wobbly bit somewhere inside the bottom bracket. I'm taking bits from old bikes to cannibalise into a new one to make it rideable and to be honest the whole thing is a great learning experience for me anyway, but I've hit a problem. In the past I've removed the bottom bracket with the correct tools, then to remove the bit that contains the ball bearings I just use an adjustable wrench to unscrew it. On this bike it isn't nice and hexagonal shaped to allow a wrench to grip properly, it keeps sliding off. It looks like some kind of unique tool is needed, can anyone assist me in removing this so I can replace the bottom bracket? I've attached a picture of the offending bit.

[Image: bKx4sI5.jpg]


  Crankset repair.
Posted by: qAnAthemA - 07-07-2016, 03:29 PM - Forum: Cranks & Pedals - No Replies

Hi guys!

My bike has been damaged. The crankset is curved now. Sad [Image: cCYvrJ.jpg] [Image: JwJHhe.jpg] [Image: xCPb4B.jpg]
From the information I have found it is Suntour XCC 48/38/28 (http://www.gtbicycles.com/usa_en/2013/bikes/urban/sport/transeo-4-0). The problem is that I don't know the bottom bracket size and anything else. So do you have any ideas what crankset can replace my old one and please tell me what instruments do I need to replace it (right now I have moved and I don't have any instruments).

Thank you.


  Replacing crankset - chainline and bottom bracket question
Posted by: dax42 - 07-06-2016, 10:59 PM - Forum: Cranks & Pedals - No Replies

Hi all,

I have a bike that I'm doing up as a project and I need to replace the bottom bracket (square taper). Since the front chainring (single, 46 teeth) is pretty badly worn I was going to take the opportunity and replace that as well. But what to get as replacement?

At the back I've got a 6-speed freewheel with a chain line of 38 mm. The bike is nothing special, it's more for fun and the learning experience (my first project..), so I'd like to keep the costs down. I was looking at some budget cranksets on ebay but most of them don't specify what kind of bottom bracket length to use. How do I find a crankset/bottom bracket combination that will work and also give me a narrow enough chain line? Is it just a matter of trial and error (that could get quite expensive if I'm unlucky I guess..) or is there something I should look out for?

I found a cheap one that for a change specified BB and chain line: 131 mm BB and 50 mm chain line.
https://www.rosebikes.com/article/m-wave-single-crankset/aid:485066
Can I just use a shorter BB to get a narrower chain line or will that not fit? Do you know of a combination that could work?

Thanks a lot!


  Wow hidden bicycle motors used by racing cheats, what next
Posted by: GeorgeET - 07-06-2016, 05:39 PM - Forum: Bikes & Components - No Replies

http://sports.yahoo.com/news/tech-cheats-hard-detect-says-inventor-hidden-motors-201220419--spt.html


  Wheel size change
Posted by: onesaxplayer - 06-27-2016, 04:51 PM - Forum: Wheels & Hubs - Replies (1)

Hi all,

Someone just gave me a 32" cruiser bike. Yes, it's a boxstore bike, but they were kind enough to give it to me and I appreciate their generosity. The back tire has a gash in it, and I'm having a hard time finding a replacement. I'm contemplating downsizing the wheel set to a more common size. Seems like it will work as the bike is very simple: single speed, coaster brake. Spatial reasoning isn't my forte so sometimes I look at things like this thinking they will work, only to find out I'm mistaken. What do I need to think through on such a swap? Thanks in advance!!!


  Mystery Spring
Posted by: TallRider67 - 06-17-2016, 12:03 AM - Forum: Wheels & Hubs - No Replies

I have a 1997 Giant Ferrago.  Great bike, bulletproof.  I was changing the rear tube, and doing a bit of lube to both wheels.  When all was said and done, I had a left over spring that I think came off the bike.  But where?

Any ideas?

[Image: image_zpsoivycnpy.jpeg]


  My cool Schwinn
Posted by: thatcham84 - 06-16-2016, 02:26 PM - Forum: Show off your bike! - No Replies

This bike started out life a very heavy Schwinn Trailway
It was over 40 lbs. Now it is very near 21lbs. and Rocks!
It is now 21 pounds 6 ounces. I can trim about another 3oz. by moving to a XT rear derailleur and replacing the seat bolts with Ti bolts and rear derailleur bolts. But not today. This bike will probably never be lighter than 21 lbs. the frame is just to heavy.
Even now every part including bolts has been replaced with something lighter and only the frame is original.
All of the parts used to make this build where based on 2 criteria, long life and light in weight.
No added fluff,strictly business built.


[Image: attachment.php?attachmentid=517920&d=1461566033]


Thank you for your interest.
______________________________________________________
Have a nice day.


  Cut in my lug
Posted by: w1ndh0rse - 06-09-2016, 03:28 PM - Forum: Frame & Forks - Replies (1)

I've owned this bike (1977 Schwinn Le Tour III) for about a month. For all I know, this has been there the entire time and I didn't notice it. It looks like someone took a tiny saw or something and cut into the lug. It looks to perfect to be a crack. I'm a novice when it comes to bike repair and I'm looking to learn what this might be. Is it a repair to a crack? Should I be looking for a new frame?


[Image: pmHFr3Xcj]


  Front derailleur drags on middle chainring?
Posted by: fionn88 - 06-09-2016, 01:21 PM - Forum: Derailleurs & Shifters - Replies (1)

Hi guys -- I'm new to the forum. Thanks for reading.

I'm fixing up a bike I've had for ~15 years that, sadly, I wasn't able to maintain. The bike is an 18-speed Royce Union mountain bike. Aside from new tubes/tires and a new chain, everything else is original (thumb shifters, both derailleurs are Shimano).

The original chain was just too rusted, so I replaced it, and it runs nicely now. Almost. It's fine on the granny chainring, and it's fine on the big ring, but when it's on the middle ring (the one that I tend to use the most), the chain drags across the inside of the derailleur cage. Previously (when I had been maintaining this bike regularly before knee issues made riding a nightmare), I had had to adjust the low limit on the derailleur to keep it from dragging when it was on the granny ring, and it had been fine until I had to stop riding.

I'm planning on using this as a commuter bike for the next year or so, not for trails or long treks (not yet, anyway).

Any thoughts on what I can do to fix the chain drag on the middle chainring? Any suggestions/advice would be much appreciated!


  Rear derailleur rolling chain off
Posted by: It's your boy - 06-05-2016, 04:36 PM - Forum: Derailleurs & Shifters - No Replies

Hello I recently got my hands on a 99 trek 6000 and I have been working on it in my free time. When I try to ride it the back chain keeps going down in the gears until it pops off the gear on my wheel help!!




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