All Questions

0
votes
0answers
25 views

Brake weirdness on my new E-bike

I very recently purchased an E-bike for commuting to work and other area locales. I understand with any new bicycle there will be some break-in time and after a few rides I did notice the brakes were ...
1
vote
1answer
26 views

How to assess safety of carbon frame after crash?

I was recently hit by a car which pulled onto a roundabout. The driver hadn't seen me. The car hit me hard enough to actually snap the rim of my rear wheel. The bike has a carbon fibre frame and ...
0
votes
0answers
25 views

What can this bike do? [duplicate]

I have this bike for quite some time. I want to know if this bike is good for for xc, trails or trials. And also I want to know if this bike frame geometry is good for doing manuals, bunny hops Here ...
2
votes
1answer
37 views

Can I upgrade to newer groupsets despite my frame not supporting internal cable routing?

I was given a 5 year old bike with alloy frame with an old Sora groupset and I'm planning to upgrade to the newer Shimano 105 r7000 groupset. Apart from my Shimano R500 wheelset(which I know only ...
1
vote
1answer
63 views

Constantly engaged disc brakes, how hydraulic brakes retract?

I'm building a little velomobile and I'm thinking of creating a handbrake (park brake) feature where I'd engage the brakes when I leave it somewhere so it can not move (slope, get stolen or whatever). ...
0
votes
1answer
44 views

Swytch eBike conversion wheel axle diameter

I purchased the Swytch eBike conversion front wheel but I found that the axle was 11mm in diameter, which was too big for my hybrid bike and any other bike fork I've tried. Could you tell me if there ...
6
votes
5answers
1k views

Giant Toughroad SLR 2 for 200 miles in two days, will it make it?

I own a Giant Toughroad SLR 2 bike, it's an hybrid bike and I'm planning to register myself in a Seattle to Portland ride. It's a 2 day - 200 miles ride from Seattle to Portland. The question is ...
1
vote
0answers
43 views

Can't get in first gear on Shimano ten speed block

Just replaced drive chain on mtb ... new cassette (Shimano 10 sp ) new chain (Shimano 10sp) new rear mech (Shimano 10sp long) and new (Shimano 10sp). I've set bottom stop tensioned cable and adjusted ...
1
vote
0answers
25 views

Re-greasing Raleigh rea268

I have some pedals very similar to the one in the image. It appears both sides have these seemingly non removable pins. The round bit with the logo doesn't appear to be a dust cap. I already tried ...
4
votes
0answers
61 views

Cut off tubeless plug head?

I use tubeless tires ranging from 30 to 40mm in width. When I puncture and the sealant doesn't cut it, I plug the hole with a Dynaplug. On longer rides, I carry a spare tube (or two) just in case. It ...
3
votes
5answers
2k views

Could the E-bike drivetrain wear down till needing replacement after 400 km?

The drivetrain (chain? gears?) of my E-bike started to make loud clicking sounds, with the impression that the chain is skipping over teeth. The gear switching itself still works well. I have tried ...
0
votes
1answer
31 views

What can cause narrow disc brake gap in TRP Spyre-C?

I have mechanical disc brakes (TRP Spyre-C), second year. Last year I removed and mounted wheels without problems. This year I am all surprised because I cannot adjust the rear brake. Front -- no ...
0
votes
1answer
37 views

Discs rubbing no matter what I do

So a couple of days ago I regreased my back wheel hub bearings, put it back together so there's no play, golden. But when I put it back in the bike one side is constantly rubbing. Tried loosening ...
1
vote
0answers
33 views

Is this Raleigh headset worn?

I was wondering am I correct in saying this this headset race is worn and needs to be replaced. It's off a BSA wayfarer bike. It has a 1 inch threaded steerer. I read on Sheldon's website you can ...
1
vote
1answer
39 views

What kind of fork end is this?

I am looking for a new city/urban bike and thought that a gear hub would be a nice addition (before this I was exclusively using derailleur gears). To get started I was reading the wiki page on fork ...
3
votes
3answers
647 views

New brakes for 90s road bike

I am riding 90s road bike with Shimano 105 dual-pivot brakes and brake levers, and 2x7 downtube shifters. Since braking becomes less and less reliable I want to replace both brakes and levers with ...
1
vote
1answer
44 views

How can I fix brake pads being too tight even after pushing the pistons back in?

I just got delivery of a road bike with SRAM Red disc brakes. It was delivered with little inserts in the brake pads to prevent accidental squeezing of the lever when the rotor was not in. When I put ...
1
vote
2answers
60 views

Rear derailleur mounting bolt or hanger thread stripped?

Having some issue with my SRAM X01 Eagle rear derailleur mounting to the frame idk it won't bolt in with my torque wrench it's very loose? When it comes to drivetrain stuff I'm not experienced enough ...
0
votes
1answer
47 views

How to remove stuck Shimano Hollow-Tech bottom bracket cups?

When I tried to remove the bottom bracket bearing cups using the BB tool it was very hard to move or it's just stuck. Tried WD40 then slowly tapping the tool using a mallet didn't work. To cut the ...
1
vote
4answers
79 views

Shifting from a Tiagra BB to an Ultegra or Dura Ace BB?

So after about 10,000 miles with my bike I bought in 2015 the bottom brackets have had enough. I need to switch them out, and considering they're quite cheap in retail and also does a lot of the heavy ...
0
votes
0answers
36 views

Measure capacity of Lithium by Coulomb counter method while charging [migrated]

I'm learning to design a module to measure capacity (percent left) of ebike Lithium battery. Lithium cell ' specifications are 48V-13Ah, it's built from cell pin 18650- 2600mAh. I choose the Coulomb ...
0
votes
2answers
79 views

Remove crankset when no bolts visible

I'm sure this is a very common question, but I need to remove the pedals and crank from a CCM mountain bike frame - however, the pedals have no obvious bolts - the pedal arms simply bend 90 degrees ...
1
vote
0answers
82 views

Seat clamp slid the seat down as I was riding, hurt my knees

So I was riding a community shared bicycle that many city's have that you can ride around for a small fee. While I was riding it, the seat clamp must have been loose and the seat was sliding down ...
3
votes
1answer
40 views

Okay to use new KMC master link on old KMC 11spd chain?

I took my 11spd KMC bike chain off a few days ago to give it a good cleaning and re-mounted it to the drivetrain using a master link and park tool master link pliers. I must have not set it correctly ...
1
vote
1answer
55 views

KMC chain disconnection issue

I'm trying to replace my rear derailleur on my cheap MTB. Chain is a KMC with a Z and NARROW on it. There's no master link so I bought a tool but i can't get it to push a pin out. Are the pins one ...
2
votes
1answer
82 views

What bottom bracket do I have

What type of bottom bracket do I have? I'm looking for a video on how to service my bottom bracket but I'm not sure what type I have. I have a Cannondale CAAD8 from 2011 with a Shimano 105 groupset. ...
0
votes
0answers
66 views

What to do if you fall on your head without a helmet and experience a concussion [on hold]

I fell on my head without a helmet. I was wearing a rucksack that stopped me wearing the helmet wile riding. The fall was caused by clipless pedals, where a bolt came unscrewed and prevented the ...
3
votes
1answer
106 views

JIS and ISO square taper

I've read Sheldon Brown's page on JIS and ISO and have read exchanges in forums about the pros and cons of using ISO cranks on JIS bottom brackets. If my understanding is correct, these standards ...
5
votes
3answers
81 views

Multi-city bike rental in Europe (NL, BE)

I'm considering a bike trip in Europe, primarily the Netherlands, over a week or two. But I'd rather rent a bike (in fact, two) than bring mine all the way from Australia. Are there any options for '...
1
vote
1answer
56 views

What is year and model of my Diamondback?

I have a Diamondback frame I'm guessing around 1984 or 85 serial # F4042789
0
votes
0answers
64 views

Ebike high-end spec: does it really matter? [on hold]

Socially appropriate greetings ! TL;DR at the end of the post. I'm an IT crowd, a geek, a nerd, i love specification and finely tuned hardware. I 'm used to ride road/race carbon "muscular" bike (...
1
vote
1answer
86 views

I need some help identifying a bike I just acquired

I need help identifying this bike.
0
votes
0answers
48 views

Three wheel trike assembly problem with chain and transmission

I bought a new three wheel bicycle and I got it all together, but it will not move forward. It is freewheeling - the chain moves backwards freely, but will not go forward. What could stop the chain ...
2
votes
2answers
55 views

Using a 9 speed cassette with a 11 speed shifter

I've just bought a turbo trainer and I'm looking to buy a new cassette/wheel/tyre to use to save the ones currently on the bike and make it easier to change between my bike and my girlfriend's bike ...
4
votes
1answer
1k views

Can I use denatured alcohol instead of isopropyl alcohol when servicing a fork?

I want to try to do the lower leg service of my suspension fork myself for the first time. In the RockShox videos on that topic on YouTube, they take apart the fork and clean the parts with isopropyl ...
1
vote
0answers
95 views

Need help identifying a vintage road bike, possible Benotto 3000

I have this bike that I bought at a local store, I'm from Costa Rica> The manager sold it to me as a Benotto, but I can not find anything that tells me that it is apart from the stickers. The headtube ...
4
votes
3answers
226 views

Independent drivetrains on tandem bicycle

On a standard tandem frame, is it possible to build a tandem bicycle with independent drivetrains for the two riders? Is there a custom frame builder that would build a tandem like this? I'm aware of ...
1
vote
1answer
71 views

How to fix tubeless tire leak at rim seam

I bought a Cannondale Fat Caad 2 that came with tubeless ready rims and tires— the rim is even pre-taped. I’m converting to tubeless currently — removed tube, installed valve stem, put 120ml of ...
0
votes
2answers
77 views

Can I put a 700 x 35 tire on a Cannondale Quick 2 that has a 700 x 28 tire? [duplicate]

I usually ride roads with my 700 x 28 tire, but want to do a trail that has a multitude of surfaces. So can I put a 700 x 35 on this bike?
0
votes
1answer
98 views

How to choose the light bulbs for a given dynamo

I have a 16V 8W bottle dynamo and two light bulbs: one is marked 6V 0.05A and is working properly other does not have any inscription and ceased to work. I would like to replace the second light ...
0
votes
1answer
158 views

Is this bike XC or Trail?

My bike is a Exitway R16 with Rockshox Recon suspension. I was wondering if is this bike for XC racing, light trail riding or both. The bike is not the fastest nor the slowest, I have a little hard ...
5
votes
3answers
3k views

Brake pads destroying wheels

Today I braked my bicycle from 50 km/h with my front rim brake and heard a really nasty sound coming from the braking surface of the wheel, and I saw some metal shavings as well. The brake has been ...
1
vote
1answer
69 views

Replacing Claris FD 2400 with R2000

My bike has a 2x8 speed Shimano Claris 2400 front derailleur and ST-2400 shifters. The FD is damaged. Can I replace it with the newer Claris R2000 FD? Shimano's compatibility guide indicates that it ...
0
votes
0answers
115 views

Identifying a bike bought at yard sale [closed]

I recently purchased a bike at a yard sale has no stickers so I do not know what kind of bike it is and would like to find out . Serial number. PL1106001345
1
vote
0answers
33 views

What kind of nut is used on Shimano hub dynamo with rollerbrake?

I tried using the normal cap nut that is also used for my Shimano internal gear hub on my back wheel. The issue I have is that the axle on power side is quite short and the nut does not get enough "...
0
votes
0answers
14 views

--Electric Bike— How to measure left percent of Accu? [migrated]

I intend to make a module to measure Accu of the electric bike instead of using the indicator's bike. Measured Accu(VRLA) is 48V-12Ah. As I know, the specifications of an Accu are Voltage(V), Current(...
0
votes
1answer
50 views

Does shorter shock stroke limit rear travel better than higher shock pressure?

I'm building a full-suspension XC bike for racing technical courses. My frame is built with a leverage ratio such that 45mm of shock stroke corresponds to 130mm of rear travel. 99% of the time, I am ...
0
votes
2answers
80 views

Handlebars wobble when gripping center of bar

My handlebars wobble when I am gripping the center of my handlebars at moderate-high speed. When holding the grips on the end of the bar it's fine but I like to sometimes give my hands a rest with a ...
0
votes
0answers
63 views

Diy fork shock pump [on hold]

I am a DIY enthusiast and would like to build a fork shock pump for my personal use. Could some one please guide me and post few pictures of shock pump interiors and it's dimensions...? Thanks
2
votes
1answer
61 views

Reassemble my Shimano Deore XT shifter

It's an old 9 speed shifter bought in 2010 or so. It has been completely in bits and i have it all nicely back together, it operates "normally" for once shift only, doesn't reset and so only gives me ...

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