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11 views

Snapped BB nds cup

I've just been installing a shimano un26 BB and snapped the non drive side plastic cup. BB doesn't budge (so it's good I guess), what should I do to address the other side, cup can somewhat screw in. ...
2
votes
0answers
25 views

Canyon ULT and Wahoo Kickr

Bought a wahoo Kickr in November and noticed a small chip to my canyon ultimate carbon frame. In January, Canyon announced the Ultimate was not compatible with Kickr. I'm dealing with Canyon and Wahoo,...
4
votes
2answers
81 views

Should the tightness of the QR skewer (rear wheel) affect the freewheel

The tighter I fit my rear QR, the less freely my rear wheel spins. It’s very noticeable. Problem is that when I have the QR quite loose I tend to get a creaky noise from the rear axle under load but ...
1
vote
1answer
35 views

what is this hole for on a B&M Luxos U light?

Installing a luxos U. I've got a pair of others on other bikes, but those were installed by an OEM in Europe. The process is straightforward: Crimp some spade connectors on, then connect hub to light ...
0
votes
0answers
37 views

Is there a complete list of all Shimano bicycle components?

You can search for specific components on si.shimano.com, velobase has a huge database of Shimano components, but it's far from being complete. Is there a definitive list of all Shimano components ...
0
votes
0answers
33 views

Bosch 500w battery stopped charging

Charger works as I have a second battery and it charges. The 500 watt battery displays a partial charge but does not charge and does not power bike. I have done multiple resets without success. It ...
2
votes
0answers
60 views

How can I tell whether any crank is cold forged, hot forged or cast aluminium?

I know that cold forging allows for sleeker designs because cold forged aluminium is stronger. Are there any other giveaways that indicate a certain manufacturing process?
2
votes
3answers
67 views

Topeak rack - rear light bracket is annoying

My wife has a Topeak Explorer rack.It has an bracket on the rear for a light or reflector. It is useless to mount any of the rear lights we own and is ugly. Anyone find any use for it or cut it off? I ...
1
vote
0answers
59 views

Power Brakes and V-Brakes

Is power brake different than V-brake? My local bicycle vendor says both are different and bikes with power brakes are costlier. I am not sure whether both are same or different and if different, ...
1
vote
0answers
24 views

Shimano FC-MT610 12speed 30T crankset substitute

I have a Shimano FC-MT610 12speed 30T crankset and wish to go to a crankset with more teeth for flatter terrain. Shimano offers a 34T version. Is there a higher tooth crankset compatible with this BCD=...
5
votes
2answers
1k views

Do I need a chain breaker tool to install a new chain on my bicycle?

Do I need a tool, or will the chain have the correct length? For example, my biggest cog in the rear is 34T and the biggest chainring at the front is 42T and the chain has 116 links. Is a chain with ...
1
vote
1answer
44 views

I would like the suspension specs on my 2002 Rocky Mountain Element. Any help is appreciated

I'm riding a 2002 Rocky Mountain Element. It has a blown shock in the rear. I would like to find the specs for replacement of the Fox Float R 2002 shock. Any help is appreciated.
4
votes
2answers
230 views

Problem with cassette and derailleur

I am a newbie and this is probably a simple question. I have a new Trek Domane 2. It is the 2020 model. From what I can tell on the Trek website, it has a Shimano Claris R2000, 8 speed shifter. Based ...
4
votes
2answers
227 views

Seat post nominal and actual size

If seatpost has nominal size of lets say 27.2, what is its actual size? Or other way around, if frame nominally accepts post of 27.2 what is the actual size of the bore in the frame? Obviously both ...
1
vote
0answers
31 views

Can I use my Chariot (now Thule) child carrier hitch on my Juiced Crosscurrent S?

I recently bought a used Chariot Cougar 1 child bike trailer / carrier from Craigslist. This same trailer design is now under the brand "Thule." It works great, and the included hitch fits ...
4
votes
1answer
90 views

Why does my freehub body have such shallow lockring threads?

My new freehub body (right) has much shallower threads than my old one (left). The threads are so shallow that I cannot properly install the cassette lockring. They are both for Campagnolo 9/10/11 ...
18
votes
8answers
7k views

Is cycling on this 35mph road too dangerous?

I'm thinking of bike commuting to work and there is a stretch of road with no sidewalk and 35mph speed limit. Is this too dangerous for biking? I'm not in the best shape so I can't go very fast. ...
2
votes
2answers
131 views

How to clean brake pads properly to stop squeal?

I bought a new MTB recently that came with TEKTRO HD-275 hydraulic disk brakes, after two weeks it has started to squeal, then I clean both front and back pads with Isopropyl alcohol and 120 sandpaper,...
9
votes
2answers
177 views

Standard forces on a bike frame

Let's say I was going to design a bike frame for a specific size of individual. I'd start with some basic frame geometries, then I assume I'd calculate the necessary member sizes, stiffnesses, etc. by ...
4
votes
2answers
204 views

Dangerous feature on a new 20" wheel kids bike? EZBuild pedals

TLDR: Rather than threading a pedal directly into the crank arm this bike maker has an EZBuild feature. The pedal is threaded into a cast aluminum part at the factory that rotates around the crank ...
0
votes
0answers
78 views

Trying to identify this bike

Not sure if it was a good purchase? I have looked around the internet trying to find a similar badge but no luck. Here is a pic. Thanks for looking.
3
votes
4answers
659 views

Prepping pedals when installing

I am moving my pedals from one bike to another, and removing them caused a lot of frustration. I had greased them before hand with some basic automotive grease, and the threads were still greasy when ...
2
votes
2answers
149 views

Link between bottom bracket and rear wheel widths

I am building a bicycle by gathering some components I already have. It is for a basic bike, only used as spare bike. I have to change the crankset and bottom bracket, as they are scrap. The crankset ...
3
votes
1answer
64 views

What are/were the differences between the various Shimano square taper cartridge bottom brackets?

There have been a number of different square taper bottom brackets by shimano in the last decades. BB-UN91, BB-UN72, BB-UN55, BB-UN26 among many others. They often correspond to the different tiers of ...
3
votes
1answer
312 views

How often should air spring forks be reinflated (topped up)?

Forks that use an air spring, as opposed to a coil spring, have to be pumped up to the desired pressure to work as intended (using a shock pump). From experience, I know that they lose pressure over ...
8
votes
5answers
2k views

Is My Rim Cracked?

Is my rim cracked? Do I need to replace my rim? Do I need to replace my wheel? (See left/first picture). If either 2 or 3 is Yes, what's the most frugal way to go about it? Notes This is the rear rim....
0
votes
0answers
67 views

Rear wheel not centered

So i just noticed that my rear wheel is not centered. I think it has been like that since i sent my bike for a service 6 months ago. The wheel is brand new I also noticed a thing which looks like a ...
0
votes
2answers
128 views

MTB to Drop Bar Conversion

I currently have a cheap begginer’s MTB. A Toseek Brandon 27.5er 1x8 with hydraulic disc brakes and I came across a circular drop bar handlebar close to my original flatbar diameter. Is there a ...
1
vote
1answer
71 views

A DIY question / handlebar / build

I'm looking to replicate the montage in the photo, which involves attaching an epoxy beam to a bicycle handlebar (it's a science project), as I show in the drawing. The beam must be very well fixed ...
-4
votes
2answers
88 views

What kinda frame do i have please help

Medium frame Affinity stickers on frame metal petals straight handlebars
2
votes
1answer
42 views

Rear dropout with adjustments screws of a single speed bicycle

I have got a single speed bicycle (Pure Fix Original Series) and I need to remove the rear wheel to the replace the punctured tube. The rear dropout has adjustment screws (I am not sure if this is the ...
1
vote
2answers
38 views

Will a 3x10 or 3x9 front derailleur work on a 6/7 speed chain?

Will a 3x10 or 3x9 front derailleur work on a 6/7 speed chain? Can't seem to find a good MTB front derailleur for 6/7 speed chain. Tourneys won't do it for me
0
votes
0answers
21 views

Broken Rear mech inner plate

My chain got caught in the guide plate and broke the encircled part of the rear mech (See photo) I'm using Shimano GRX 810 Rear derailleur. There are no observable misalignment. Question, is it safe ...
-1
votes
2answers
123 views

Where should I prefer and avoid cartridge bearings in a bicycle?

All bicycle bearings, hubs, bottom bracket and headsets used to be cup and cone bearings. However, recently there has been a trend to replace these with cartridge bearings in new parts. Is this a good ...
2
votes
1answer
89 views

Recommendation for Carbon Hybrid Bike [closed]

After some trial and error (see another post of mine), I finally settled in on getting a carbon hybrid bike. I want carbon because it is lighter and I want a hybrid because I prefer a flat bar (just ...
5
votes
5answers
808 views

Marking chains permanently for later identification

I'd like to mark chains so that I can identify each one out of a few chains of the same model. Any idea how I can do this in a way that will survive exposure to solvents / lubricants / use on the ...
4
votes
1answer
48 views

Slotted or unslotted crown race with tapered carbon steerers

Does a tapered carbon steerer (40mm at the crown) typically require a slotted crown race if the steerer lacks an integrated bevel on which the lower bearing can rest? I have a Cane Creek Forty headset ...
4
votes
2answers
111 views

Can I put a 8 speed bike on a Elite Suito 11 speed direct drive turbo trainer

I have recently ordered an Elite Suito Direct Drive FE-C turbo trainer. The main use is for indoor, winter cross-training for my young son who's a keen athlete (we don't want to send him out in the ...
5
votes
1answer
64 views

Ultegra 6600 right shifter lever alignment

Have a set of Ultegra 6600 SL shifters that I'd love to put to use, but encountered an oddity with the right hand (rear) outer shift lever. It appears the lever return goes too far and so as a result, ...
1
vote
1answer
70 views

Will Shimano Acera 8 speed derailleur work on 6 speed freewheel?

I want to get a higher quality rear derailleur from the Tourney which I have right now(it broke). I want a Shimano Acera RD-M360-SGS. The problem is that its 8 speed. Will it work on my 6 speed ...
8
votes
5answers
2k views

Front tire & downtube clearance - extremely dangerous?

I recently moved cities and met someone to buy a used "vintage" bike from them. While test riding at a slow speed I gradually applied the brakes. The front brake seemed to jump from light ...
14
votes
4answers
2k views

Mountain Biking And Clipless Pedals

I have never been seriously off road on a trail with a mountain bike. I am curious for any mountain bikers do you ride clipped in on trails and when if ever do you proactively clip out (e.g. like on a ...
1
vote
2answers
110 views

Resealing bearings in chinese OSPW

I am currently rebuilding an old steel bike with some modern parts and am searching for a OSPW because it looks quite cool. However a "real" one from CeramicSpeed seems way to expensive for ...
0
votes
1answer
59 views

tensiometer and 2.16mm Ø spoke tension

I am trying to determine the proper spoke-tension target reading for a plain J-bend stainless spoke. It has a 2.16mm diameter per the little gauge that comes with the no-name tensiometer I've just ...
1
vote
2answers
92 views

What causes a slight rhythmic knock in the pedal?

My left pedal is sending a slight knock to the sole of my foot at every turn, at the 1 o'clock position. What could cause this? It happens on all chainring-sprocket combinations though not with the ...
0
votes
3answers
77 views

Riese Muller with Bosch performance CX not engaging immediately

since the firmware in my ebike engine Bosch performance CX gen 4 has been updated, I am noticing a strange beahviour, that is, when pedalling, the engine (or the rear wheel pawns) will not engage ...
3
votes
1answer
53 views

7/8 speed quick link on 6 speed chain?

I have a 6 speed freewheel with a chain which says HG on it. Can I use a 7/8 speed quick link on my chain?
2
votes
1answer
100 views

Rear wheel stuck after taking off nuts on axle

As in the title. I was trying to do some repairs after my derailer snapped and damaged the bike. When taking the rear wheel off (to get to the fender) the wheel got stuck in place after taking the ...
2
votes
3answers
66 views

Replacing crank and bearing on cheap Murray

Murray Cross Canyon. The pedal crank is all one piece with regular bearings. What would I use to upgrade this? Is there a bottom bracket that i can use. The outside diameter of the bearing is 43mm. I'...
2
votes
2answers
101 views

Is a “universal” rotor compatible with all types of disc pads?

What is a "universal" disc rotor? One that is compatible with all types of brake pads?

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