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0
votes
0answers
7 views

Which measurements are most important to consider for tall men?

I am 6'8" and 255lbs so my figure is a bit between Kevin Durant (not as skinny) and Lebron (in shape but not as muscly). For smaller bikes such as what you would find in Wal-mart, I frequently see ...
0
votes
2answers
36 views

Need help finding compatible bottom bracket and crank set for track bike

My bike is this: https://www.santafixie.co.uk/derail-black-fixed-bike.html The BB measurements on the link are CH55 BSA 68/107. I know literally bare minimum about bottom brackets and crank sets. I ...
4
votes
1answer
73 views

Need new crankset for a 15+ year old bike [chain slipping on gears]

Just discovered this site. My uncle gave me his old bike. The chain has been slipping and today we replaced the chain (previous was worn and stretched, the rear casette (to a used but less-worn one), ...
0
votes
1answer
33 views

Chain help 77 super le tour

I have a 77 super le tour that I’ve been fixing up, it’s pretty much done and rideable (rides like nothing I’ve ever been in btw) but now I want to put a new chain in it what kind and size do you ...
2
votes
1answer
22 views

How does the Pog Security Washer work when using it with the Pinhead wheel locks?

I noticed when I got some Pinhead Wheel Locks that they came with an extra funky looking washer that looks like this: They didn't describe much about it, but I did find some information about them: ...
8
votes
1answer
485 views

How do I stop chain from moving and jamming up when I stop pedaling my multi-speed bike?

When coasting (not pedaling) on a multi-speed bike, the chain does not stop moving and starts piling up on itself between the pedals and rear gears. How do I fix this?
3
votes
2answers
183 views

How does one adjust the equivalent of the barrel adjuster on the XTR RD-M9000 rear derailleur?

I'm used to be able to turn the barrel adjuster on a rear derailleur to be able to bring the derailleur in or out (relative to the wheel). However, it doesn't seem like this particular derailleur ...
-3
votes
1answer
54 views

I got this sitting in my garage for a few years now I was just trying to clean some stuff out trying to figure out what they're worth [closed]

I had the serial number and UPC I'm going to attach a photo as well. If anyone could help me out I would greatly appreciate it if it's a decent bike I can just give it to my son after I fix it up a ...
0
votes
1answer
22 views

Shifter isn't working, cable doesn't react

When I pull the shifter for my front dérailleur the cable doesn't react. Even with tension on the cable. Now I made the cable loose. Also my barrel adjuster is disconnected, maybe the problem is ...
2
votes
2answers
152 views

MTB freewheel not moving back wheel after change of tyre

I changed my MTB tyres to a slick set to use on road and also to connect to a turbo trainer. After changing the tyre, I put the wheel back in, and see that the pedals are moving the chain and the ...
0
votes
0answers
34 views

Different size tyre has arrived than ordered

I normally get my local bike shop to change my tyres but due to the COVID19 Pandemic they are not open. I have a Ridgeback Terrain 2 that came fitted with 27.5 x 2.10 tyres I ordered that size of tyre ...
2
votes
1answer
49 views

Help me fix play in Gossamer cranks

I just bought a used bike for cheap. The crank/pedals feel loose and wiggle a bit from side. I notice there's a hole straight through the crank where I feel like some part is missing, perhaps some ...
0
votes
1answer
137 views

What type of bottom bracket is this (pictures)? What tools do I need to replace it?

This bike has a lot of play on the bottom bracket. Here are pictures: What replacement can I buy for it? It looks like a square tapper BB to me, how do I measure which size I need? I do not have the ...
8
votes
2answers
373 views

Can I use a rim brake rear wheel in a disc brake bike, for indoor training?

I have a disc road bike (QR); I use it also with an indoor trainer with a specific training tire. I would like to buy a wheel to be used only on the trainer (with the specific tire). Since I don't ...
0
votes
3answers
66 views

My front dérailleur doesn't shift into the big ring neither in the small one. If I pull the shifter nothing happens

I have a Shimano Sora groupset and my bike is 1 year old. I already tried everything with the limit screws and the cable tension but now nothing moves when I pull the shifter. I'm not sure how to ...
4
votes
3answers
366 views

Safe to mount rear rack for Grail 7.0 al 2020 ( no eyelets )?

The 2020 model of Canyon al 7.0 gravel bike does not come with eyelets: https://www.canyon.com/en-sk/road-bikes/gravel-bikes/grail/grail-al-7.0/2370.html But for longer tours ( for what I would like ...
-1
votes
0answers
55 views

Buying a used bike vs a new bike [closed]

asking the same questions again and again, but I would like to know some of your opinions. Im looking into buying a full suspension bike somewhere in the mid range. I don't really do aggressive ...
3
votes
2answers
89 views

Cross-chaining in terms of angles

I'm building a recumbent trike and have reason to have the rear cassette offset from the cranks. At the same time, the chain is very long, so the offset is compensated. It looks like the chain will ...
0
votes
2answers
52 views

Front derailleur not shifting up

I have a road bike with shimano front derailleur and dropped shifter. For weeks my front derailleur has been very stiff, requiring much force on the shifter to go onto the bigger ring, so the other ...
0
votes
0answers
75 views

COVID-19, disinfecting bike-share bikes (or rental bikes), and safely using them [migrated]

I don't own a working bike, but I do have a bike-sharing system membership. My city's bike-sharing system has many stations. I can borrow a bike and ride it to any other station. There's currently ...
-1
votes
0answers
36 views

Best indoors cycling app for basic turbo trainers [closed]

Good day all i have a basic BTWIN trainer and i have a Garmin speed sensor and cadence sensor and a Garmin heart rate monitor , What is the best application i can use with this setup to train ...
-1
votes
1answer
79 views

Chain loses grip under load in higher gears

When pedalling in higher gears, the crank or cassette seem to completely lose grip for a second, then grip then lose it again. I could probably pedal all day in 1st and any front ring but when start ...
-1
votes
1answer
67 views

Please help identity this “Ventoux” MTB

Can anyone identify the maker, I’m guessing Ventoux is the model?
4
votes
0answers
87 views

Chain slipping off from singlespeed rear cog

After I have worn out the cogs and chain to the point where my chain tensioner couldn't keep up anymore, I have replaced my drive train pieces, the axle and spacer are still the same. So I went from: ...
0
votes
1answer
59 views

What brand is this stem?

Just wondering if anyone can identify the logo of the brand on this stem, thanks.
3
votes
1answer
69 views

Shifter labeled low to high

On my bike, on the left shifter, It is labeled low to high and has lots of dots between them. I don't know how to shift to one individual gear on the front derailleur. It seems that If I shift it ...
4
votes
3answers
642 views

How to enlarge dropout slots?

I have a Raleigh Grand Prix and was trying to put a modern wheelset on it, but the front dropout slots are too narrow to fit the axle. Is it safe or possible to enlarge the slots? The fork is chrome ...
1
vote
1answer
48 views

How to adjust hydraulic disk brake lever reach during bleeding?

During a crash I have bent my adjustment knob on Sram Code brakes and now after bleeding the lever is a bit too far away for my liking. The knob is bent and can't be turned. If I'll reduce the ...
3
votes
1answer
116 views

How to install safety levers

So I have an old super le tour and I want to install a set of safety levers on it (trying to bring back the original look) I cannot find an guide online so does anyone know how to install them? Dia ...
1
vote
1answer
49 views

Drivetrain changed - new cranks further from bottom bracket

On the weekend I did an overdue drivetrain change. Everything went fine and runs rather smoothly, but I had to adjust the front derailleur a lot. It seems like the new cranks are about 5 mm further ...
2
votes
2answers
78 views

Trying to identify an old Helkama I have recovered

I have an amazing find here and need help understanding it's history. I am currently ordering all the bits and bobs to run it again, but wanted to learn more about it if I can. I think it was a work ...
0
votes
1answer
71 views

Help identify my bike frame

Please help me identify a mystery bike that I purchased at a garage sale and have grown to love. I am not sure what is original to the frame but the bike has a 56cm frame, Shimano SFR rear dropout, a ...
0
votes
1answer
24 views

Praxis Works M30 crankset to FSA BB30 fitted in a BB386EVO shell

I have a BB386EVO frame shell and a FSA PF BB30 fitted into it. All good with this Now, I have a Praxis Works M30 crankset that I want to use but I haven't been able to install. The axle seems too ...
1
vote
1answer
31 views

Front chainring issues + can I install Falcon Friction thumb shifters to an Shimano STX derailleur set?

I'm interested in trying friction shifters, also to save space on my cockpit. I bought a Mongoose Hilltopper 1994 recently and I want to play with it a little. A bike mechanic told me in order to ...
3
votes
2answers
639 views

How often do you need to lubricate alloy seat posts

I own two tourers which I normally relubricate their aluminium alloy seatposts every spring with high quality grease. Due to moving to Cambridge and the coronavirus outbreak, both cycles are being ...
3
votes
3answers
2k views

Can I charge an ebike from another ebike battery?

I have a fiido d2s, and I love it. I'm not sure if I could upgrade to a bigger bike, because it fits so well in the back of my car and public transport. Anyway, it doesn't have a detachable/...
2
votes
1answer
85 views

Power output on rollers doesn't seem to match perceived effort

I have a Garmin Vector Power meter (one-side) and I use plain Tac-X rollers with no technical bits on them. My speed and power come from sensors on the bike. My power output seems low relative to my ...
1
vote
1answer
46 views

Adjusting Tiagra Front Derailleur FD-4700

I'm trying to adjust a Shimano FD-4700, brazed-on type installed on a 2019 Giant Fastroad SL-1 I recently changed cranks from Shimano RS400 34-50T to Shimano 4700 34-50T. I took it for a test and the ...
3
votes
1answer
79 views

Rear solid axle hub

I have Trek Marlin 5, Today I broke rear hub axle. unfortunately, shops are closed nearby, because of COVID-19, I only have solid hub axle. Is it okay to use solid axle instead of quick release?
1
vote
2answers
88 views

What would you upgrade first on a road bike?

I have a Decathlon Triban RC500 with all stock components which I'm quite happy with. Since I have cash to burn (actually not, this question is hypothetical :)) what component should I upgrade first ...
1
vote
2answers
93 views

Can I convert rim brake to disc brake on road bike?

I have a Giant propel advanced 2 (2017) road bike, 105 groupset, rim brakes. I would like to buy a set of deep section racing wheels and unsure if disc brakes are an option or not. Is it possible to ...
1
vote
0answers
23 views

Headset replacement for Fit Bikes BMX

My son has a Fit BMX bike, seems to be a normal 20" setup. However, the head tube appears to have an inside diameter of 1 3/8", and every BMX headset I'm seeing expects that diameter to be 1 1/4" ID. ...
3
votes
3answers
228 views

Should I upgrade the hub, cassette or wheel so my bike will make a sound when I don't pedal?

I have a Hardtail 29' M Niner 2016, Shimano XT 10 speed, everything is perfect but I always wanted to have that sound from the hub when I go for a ride, so I want to know what I need to upgrade to ...
0
votes
0answers
40 views

Inserting pistons in caliper

What do I have to know when inserting the piston? What is the requirements to the size of the gland and squaring? Do I have to use a special tool for replacing or inserting the second piston?
7
votes
3answers
902 views

Is there a benefit of lacing trailer wheel spokes radially instead of crossed?

Reading a review of a bike trailer one of the commentators noted that the wheels were laced radially: It is a 16" wheel. Does this configuration have some advantage making it a good choice? I always ...
0
votes
1answer
46 views

Improving turning radius on an under-seat steering recumbent?

This under-seat steering tadpole has a pretty large turning radius. The limitation seems to be that the handlebars will bump into the seat. When this happens the actual steering linkage seems like it ...
1
vote
2answers
40 views

Rear derailleur does not downshift properly, shifts up smoothly

I can't get my rear derailleur to downshift properly. Especially in the middle of the cassette it'll delay a bit before shifting. Limits are set correctly. Since I can't explain this properly I ...
1
vote
1answer
53 views

Are all chainring compatible with all chain?

I want to change my drivetrain on my bike and i found everything except the chainring. So I was wondering if I could choose any chainring. Thank for yours response.
5
votes
1answer
99 views

How can I undo the locknut on this Shimano 105 hub

I'm having trouble working out how to properly service this Shimano 105 rear hub. I've watched some videos, read Leonard Zinn's book and following Park Tools' instructions, but it doesn't help. I've ...
4
votes
4answers
837 views

Brake line is unwound can I cut part off?

Putting together new bike and then brake line got frayed (just one piece) going pretty far back and cannot thread it now. Can I cut the one frayed piece or does that ruin the brake line functionality? ...

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