All Questions

1
vote
1answer
30 views

SRAM Apex 1 doesn't upshift

I have a Boardman CXR 8.9, everything stock except for new mech hanger. It has a 11-42 cassette with a 11 speed 1x drivetrain. It's Sram Apex throughout, no mixing and matching like in other questions....
5
votes
1answer
96 views

Threadlocker and Bottom Brackets

The main threadlocker brand available in the US describes its red compound as "permanent" and requiring heat (> 550°F) to free up, and its blue compound as medium strength and requiring only hand ...
8
votes
4answers
3k views

Why is an old chain unsafe?

I recently took my bike in for a service and the mechanic urged me to replace my chain, potentially at great cost (might need a new wheel). He said it might jam or pop off. He couldn't explain to me ...
-2
votes
0answers
51 views

I have a 20in BMX bike but I'm not sure what is?

the make/model of it the vin number is SNACBO8H31503 can someone please help me with my problem...thank you
0
votes
2answers
38 views

Cruiser bike weird pedaling problems, feels like back tire moving

For awhile pedalling my bike has been getting increasingly difficult. First there was a squeaking. I figured maybe because I had put too much force riding uphill. Then there was a screeching cracking ...
4
votes
3answers
1k views

Is it possible to rebuild a a steel bike frame (to make it lighter) by welding aluminum tubes

I have an old (80's I guess) road bike, it is heavy, I'd like to make lighter. is it posible to cut and replace the tubes on the frame by welding aluminum ones?
2
votes
1answer
1k views

Is this a crack on the carbon frame?

I have just noticed this on the top of my saddle bar and where the seat post clamp is. Is it a crack probably caused by the saddle pressure?
0
votes
1answer
41 views

Tube valve cap keeps breaking

For some reason, my valve caps keep breaking. I'm not sure if it happens while I ride or while my bike is not in use, but often when I take the caps off to fill the tubes before riding, I find one of ...
3
votes
1answer
65 views

What’s a good way to carry a kid’s bike on an otherwise full bakfiets?

I have a Workcycles KR8 bakfiets and the 3yo just got his first pedal bike. We wanted to take him and his bike for a fifteen minute ride to the park where he could ride by himself, but chucking his ...
-2
votes
0answers
34 views

Giant bike serial number cv660556 what year is it? [duplicate]

Need to know what year this giant is. Its red and serial number cv or cg 660556
-1
votes
1answer
99 views

Why does my bike vibrate when going down? [duplicate]

When I go down the mountain that is approximately 6% descent riding on a road, stop pedaling and remove hands from steerer (please save me from the comments about how that's a bad thing :p ) and reach ...
-1
votes
1answer
52 views

Mechanical disc brake not like it used to be

So basically, I removed a part from my caliper, the one with a spring in it, that is supposed to push the pad onto the rotor. I removed the cover and the spring popped out. I don't know why I did that,...
-2
votes
0answers
49 views

I need help identifying this bike? [duplicate]

Please help me identify this bike.I don't know anything about it,all I do have is the serial number which is ;FE060800150,then directly below it say ,"PRO. "It also has a symbol at two different ...
-1
votes
2answers
43 views

Bike won’t shift to 6 or 7 gear because shifter is too stiff

On my bike I have 7 gears at the back and 1,2,3,4,5 are normal and shift fine but some reason I can’t shift to 6 the lever or switch won’t go and feels stiff I’m unsure what it is I thought it might ...
-1
votes
1answer
74 views

Wheel won't turn?

I bought a Hyper Cruiser bike last night from Walmart and as I'm pedaling home the rear wheel stops moving while pedaling. I don't know how to fix this, please help. This is what the bike look like.
-1
votes
2answers
89 views

Help identify this derailleur hanger

I need to buy a new derailleur but I can't find the same derailleur hanger, I checked all of the websites but I still can't find it. I don't want to buy it from a bike shop yet because it's more ...
8
votes
9answers
4k views

Is it possible to do 50 km distance without any previous training?

I'm considering to do a 50-55 km distance on a mixed surface. Mostly asphalt and gravel, maybe even a little bit of sand. Haven't done any training or exercise, basically been sitting at home all day, ...
-1
votes
2answers
58 views

Which one to choose? 3X9 or 3X8 groupset? [closed]

I am looking out buy a hybrid from either of these brands viz. TreK, Giant, Merida. Now, there are 3X9 and 3X8 groupsets? Will a 3X9 be more speedier? Or should I go for a 2X10 groupset? (...
-1
votes
2answers
67 views

How to remove very very tight hub locking nut

Even when I use a Park Tool axle vise in the correct hole, I'm still having a lot of trouble removing either of the locking nuts on the axle. I'm holding the cone wrench in one hand then pushing ...
-1
votes
2answers
51 views

Cause of dent on derailleur hanger?

I was cleaning my bike and when I take my rear wheel off I notice the quick release skewer is bent. I bent it back and when I lock my rear wheel back I notice the spin part of the skewer's plastic ...
5
votes
5answers
2k views

Stopping power of mountain vs road bike

I have recently been restoring a Btwin Triban-500 road bike, given to me from a friend who had let it sit around for a few years. I've rebuilt the bike sparing no expense, new inner tubes, cables, ...
1
vote
4answers
169 views

What is a good way to mount / secure a regular backpack, while commuting? [duplicate]

This is a purely commuting issue. I have an around 3km route to the office, and a regular backpack (laptop, accessories, notebooks, ...) which is not a problem to carry around during autumn and ...
2
votes
2answers
78 views

What's wrong with my shifter?

This is a Nexus 7 spd hub gear twist shifter integrated in the brake lever. I had to undo the gear cable to get my rear wheel out. I therefore turned the bicycle upside down (some say that this alone ...
2
votes
3answers
1k views

Should I cover my bicycle overnight while bikepacking?

I'm wondering if all the moisture from being out overnight will damage my bicycle. I'm thinking 30+ days of being in use, with maybe a couple of those days being light rain. If the water will damage ...
3
votes
1answer
37 views

What are the differences between new Nexus 7 speed hub (SG-C3001-7), versus old (SG-C3000-7)?

From the outside shells seems to be different, but are there more important changes inside that influence durability or efficiency?
-1
votes
2answers
62 views

Trek Tire Fit Exchange [duplicate]

Can the 700 x 38c tire on the Trek DS2 be used on the Trek Verve 3 which comes with a 700 x 45?
3
votes
1answer
119 views

How often should I charge my (lithium) e-bike battery?

I had a retrofitted e-bike running a Leed e-bike kit for 4 years. After 800 charge cycles the battery was toast. However this system is quite basic with both the battery management & charger. I ...
2
votes
2answers
107 views

Front disk brake squealing

I know that squealing brakes are fairly typical questions but I have not found a solution yet. My bike is a Haibike with Tektro Auriga Comp hydraulic disk brakes and in recent years I ride in ...
4
votes
1answer
69 views

Derailleur play between cage and knuckle

I have a Shimano 2300 rear mech that's done about 10,000m over ~7 years. Lately I've had trouble getting clean shifting and find myself constantly twiddling barrel adjusters... I'm certain the cable ...
0
votes
0answers
31 views

park tool axle vise av5 - does it do modern qr 9mm axles

I need a axle vise for a restoration project am doing. Does this axle vise do modern 9mm quick release hubs? My mtb has 9mm quick release hubs and it be useful if I can service my rear hub. Now that ...
1
vote
2answers
50 views

11/10 speed cassette remove 2 cogs to fit 9 speed hubs

Is it possible to remove 2 gears in 11 speed cassette and fit to a 9 speed hub? or remove 1 gear in the case of 10 speed. my hub is Shimano WH-RS10 9 speed hub. My current cassette is sunrace 9 speed ...
1
vote
1answer
45 views

Chain getting stuck between large chain ring and front mech when changing into big ring

15+ year old Scott MTB. When changing gear from mid to large chain ring the chain gets pinched between the mech and the large chain ring. Tried adjusting the max min screws, problem persists. Old bike ...
0
votes
1answer
53 views

Sync problem between Xiaomi and garmin

At the moment i own a Xiaomi mi 4c but i going to change it and I noticed that the phone do not sync properly with the garmin 510 I use. In particular while the phone is connected to the garmin via ...
2
votes
2answers
62 views

What crank arm bolt is required here?

The crank arm on my Decathlon Triban 520 became loose during a cycle. On inspection the crank arm bolt is missing. What bolt do I need as a replacement? (Or how can I figure it out?) The manufacturer ...
3
votes
2answers
319 views

Upgrading From a 9 Speed Sora Derailleur?

I bought a bike on Ebay which has a Sora groupset. The rear derailleur is noisy and jumps in and out of gears despite much tweaking. I've given up on it. What derailleur can I buy that will work as a ...
1
vote
3answers
129 views

Change Derailleur on CX Bike

I have a Giant 2013 TCX Advanced. It has a Rotor 3DF, 36/46 Crankset and a SRAM XG1190 11x28 cassette. I'd like to swap the cassette for an 11-40 or 11-42. The guys at Wolftooth said: "..derailleur ...
1
vote
2answers
79 views

I can't inflate tire. Should I look for another pump?

Hello to everyone in the community. I used to own a mountain bike which used 26" tires and I was able to inflate them after changing the tube while on the road. It wasn't perfect but allowed me to ...
0
votes
1answer
84 views

Why is it not recommend to put V brake levers on cantilever brakes?

I understand that V brake levers pull more cable out then cantilever brake levers. However, the argument why one shouldn't put V brake levers on cantilever brakes I often hear and also the only one I ...
13
votes
2answers
211 views

Are there mandatory bike paths in Netherlands?

Doing a trip in Europe. I know in UK the bike paths are optional. You can ride on them or you can ride on the road, whatever feels better for you. Somebody told me that in Netherlands most bike paths ...
2
votes
3answers
478 views

Is it ok to trim down a tube patch?

I got a 700x18-23 inner tube that just got punctured. The small round patch on my patch kit is a bit wider than the inner tube itself. Is it ok to cut around the patch so it fits? An added question: ...
2
votes
3answers
83 views

Road bike handle bar adjustment to one weaker and shorter arm

I have Erbs Palsy causing my left arm to be shorter and weaker than my right arm. Can the handle bars of a road bike be adjusted to accommodate this or is there another resolution I can consider?
8
votes
2answers
844 views

New carbon wheel brake pads after use on aluminum wheel?

I have carbon wheels with the appropriate brake pads. During a race I flatted and quickly swapped wheels and finished the race. The wheel I used was aluminum, do I need new brake pads due to possible ...
0
votes
3answers
68 views

how do i put my bottom bracket back together

I was bloody relived I could get the bb apart that I just rushed ahead and fogot to take note of how it came apart.DOH!! I now have the following dilemas 1)What size bearings were they again(dont ...
0
votes
1answer
51 views

Bicycle pump slips after using gear oil

My pump got little rusty from rain. So i tried gear oil on it. But now its not pumping, just sliping all the way down. Is it because of oil or the valve is damaged? I tried removing the oil with ...
0
votes
2answers
138 views

Bicycle as SUV car?

I want to buy a bicycle which I can ride on road (through City, between two cities etc...), but I want a bicycle for offroad (not rough offroad). Something like SUV in car world. I know I can't find ...
0
votes
1answer
99 views

Why did my rear derailleur fail in the middle sprocket?

Yesterday, I replaced my cassette and chain, having ridden the previous ones through the winter, and re-indexed my rear derailleur and checked the limit screws. Today, I had ridden slightly less than ...
2
votes
2answers
65 views

Sealant in inner tubes: what's the difference?

I was thinking of converting my wheels to tubeless but my rims and tyres are not tubeless ready. I just recently learned that I can add tyre sealants into inner tubes. Can it prevent pinch flats like ...
2
votes
3answers
55 views

Any MTB trigger shifters that work with Shimano RD-4600?

Are there any MTB style flatbar trigger shifters that are compatible with Shimano 4600 road components?
4
votes
4answers
478 views

Which tube will fit a -(700 x 25c) wheel?

BF got a fancy new bike, and promptly punctured the inner tube, I’ve been looking in shops for the right size and getting in a right faff trying to find the right size. His wheel says on it -(700 x ...
3
votes
1answer
270 views

Is there a front derailer type that can be mounted on a frame without braze on or fitting on the seat tube, or clamping?

As the question says, is there a front derailer type that can be mounted without having a fitting or braze on on the seat tube, or without clamping to the seat tube (because it's a weird shape, or ...

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