All Questions

2
votes
2answers
377 views

What type of paint to use for a bike frame

What's the best type of paint to use for painting bike frames, it's steel if that makes a difference? I want to do a custom paint job and mix a few colours in a gradient effect. Should I use enamel ...
-5
votes
1answer
63 views

IS THIS BIKE SAFE [closed]

https://lh3.googleusercontent.com/S1PKL2uMXwJc2aGjGEybc8ZM4CFk-i5EHWrkZxLSVaD29xUrfIig1ap1dp6Na-WsjMc-Tw=s85 I M LOOKING TO BUY THIS BIKE AND I WOUD LIKE TO KNOW IF IT IS SAFE TO RIDE
1
vote
0answers
62 views

Lubricating an alfine 11 IGH hub

I have an almost-new New-Old-Stock Shimano Alfine11 internal geared hub in the rear wheel of my bike. Its on 300 km now, with a first oil change due at 1000 km and then yearly or every 5000 km after ...
3
votes
2answers
134 views

Mavic wheels out of true after 200km, is normal?

I bought set of Mavic wheels, and today I noticed that the front and rear wheel is around 1,5mm out true after 200km of ride. Im curious whether it is normal. I have pair of those
0
votes
0answers
71 views

Shimano SPD pedal - visible seal ring

I recently got a pair of XTR M9120 pedals. Today I noticed an elastic ring visible on the axel, and bits of grease on it too. The ring can be seen on the service manual This has happened on both ...
3
votes
2answers
95 views

Old Sears Simpson bike bottom bracket replacement

Got the pedals out, but I'm struggling with both cups. I don't know which way the threading goes either. The bike was made in Poland, pretty old. Anyone know what I could do? I have a flat-shaped ...
3
votes
1answer
71 views

Ordering correct spoke nipple size

I've got some spoke nipples on a rear wheel which are stripped, and I'd like to replace them. I've measured the thickness of the spokes and they have a diameter of 2mm, which correspond to 14-gauge ...
2
votes
1answer
126 views

Road STI with MTB Derailleurs

Not that this question hasn't been asked to death but I'm experiencing very poor shifting, here's my setup: Shifters: ST-5700 (10-Speed Road) Derailleur: M6000-SGS (10-Speed MTN) Cassette: Sunrace ...
5
votes
2answers
993 views

Freshly inserted pin on a new Shimano chain causes a stiff joint

I just tried to replace my chain for the first time - Shimano, 9-speed, labeled as CN-GH53. After I inserted the special pin, the joint is somewhat more stiff compared to the other ones. On the ...
3
votes
1answer
78 views

Can't fit damper back into suspension forks

I'm driving myself mad here trying to fix this. I work in a local bike rental / repair store, and took apart a bike's Suntour NEX 4610 V4 (2012?) forks from one of the rental bikes - now I can't fit ...
1
vote
0answers
36 views

Any 36.4mm Dropper Seatposts?

I've a diameter of 36.4mm, are there any dropper seat posts that make the size diameter for my bike?
1
vote
0answers
102 views

Identifying a brazed steel frame

I'm trying to identify this brazed steel frame I came across. Any help would be greatly appreciated.
5
votes
1answer
62 views

Non standard hub bearing?

I need to replace a hub bearing. On it, I can Read ZPL (manufacturer I guess) and 6200RS. 6200 seems to be a standard for (inner diameter x outer diameter x width) 10 x 30 x 9mm. But when I measure, I ...
0
votes
1answer
48 views

Unstable headset/headtube

I have just lowered the stem on my road bike. The headset components might not be installed correctly. Whenever I hold on to the front brake (making sure the wheels aren’t moving), and rock the bike ...
2
votes
2answers
110 views

Is there such a thing as 'eBike specific' freewheel?

I've recently had the LBS replace the freewheel on my eBike after 500 ish miles of riding. The sprockets were not worn out, instead the freewheel bearing (not the hub bearing) had become loose. It ...
1
vote
1answer
338 views

Fixing pinches with latex-based sealant?

Having had yet another botched transition from a kerb to the road (and possibly some underinflation) I’ve heard that horrifying thump as the weight of the steel rims and the lock crashed down. Sure ...
0
votes
0answers
73 views

How do you optimize the recruitment of our glutes when using a more upright bike?

How do you optimize the recruitment of our glutes when using a more upright bike? According to an answer for a previous question, rolling the hips forward slightly makes the glutes easier to recruit ...
17
votes
1answer
162 views

The chemistry of mixing sealants

It's become a fairly common occurrence in shops to be faced with a tubeless wheel that was doing fine, slowly started having issues, and hasn't had a sealant re-up in a while or ever, but what sealant ...
1
vote
1answer
61 views

Is there a non-proprietary standard for oval seat-tube/post?

I see Pinarello Dogma and Gan S frames have a proprietary seatpost/seattube combination, which don't have a circular section. An advantage of that design in my opinion is that it's impossible to have ...
7
votes
2answers
1k views

Has this rim strip expired?

I have 2 unused rim strips. Along the edges and on the surface there are brown marks (patches, streaks, blotches). 2 images (I cannot improve the resolution) Observations Both strips were stored ...
3
votes
2answers
95 views

Can I swap front & back brake levers on Shimano ST-RS685? (hydraulic road disk brakes)

I have Shimano ST-RS685 hydraulic disk brake set. I'm used to having front brake lever on the right and rear on the left. (UK). But this bike has front on the left and rear on the right. Is it ...
14
votes
1answer
212 views

Identify old bicycle w/locking steering column?

Pulled this bike out of an old shed on a property we just purchased. Believe it to be an aluminum frame but was more intrigued with the locking steering column. The badge is not on it; can anyone tell ...
2
votes
1answer
78 views

My Shimano Tourney RD-TY22 7–21 speed bike rear derailleur mech, direct attach has broken, need a replacement, preferably newer

To cut a long story short, I have a full suspension mountain bike. Its rear derailleur mech (see title) is broken, had a trip round the spokes and age has degraded the main springs. I therefore need ...
6
votes
5answers
2k views

Can I use WD40 and generic bicycle oil to maintain my MTB drivetrain?

For years I've been using WD40, a brass brush, a rag, and some generic bicycle chain oil. My chain has no visible damage, and I have no problems with it. This is for a somewhat cheap MTB that sees ...
6
votes
2answers
141 views

Back wheel spokes keep breaking

Bike was new around a year old. 8 of the back spokes broke and it went out of true. I had those repaired with a slightly stronger but spoke but now 2 more have broken including one of the thicker ones ...
4
votes
3answers
481 views

What is the torque needed for chainring bolts?

I have a bike that is no longer in production, but it has a standard drivetrain (FSA). I had some shifting issues the past couple days, and to my surprise when I did a clean/inspect, three of the 5 ...
1
vote
3answers
113 views

How durable are road or hybrid tyre tubes compared to mountain bike tyre tubes?

The context here is that I'm using a mountain bike to commute and I'm considering buying a hybrid bicycle or road bicycle. I'm experiencing various issues that require repairs and maintenance. ...
0
votes
4answers
238 views

What should be my first upgrade?

I've been planning to upgrade my Foxter Evans 3.0 (Low budget Bike) to lessen it's weight. What should I replace to lessen it? Also I'm a 5'11 person and my frame is a medium. Should I consider ...
3
votes
2answers
72 views

Alternative for campagnolo rim brake release

I bought a used road bike for a great price, it came with a shimano 105 groupset, but the brake it's a Campagnolo centaur. It's a wonderful brake, but every time when I need to remove the wheel it's ...
0
votes
3answers
200 views

Bicycle noise when pedaling

When I pedal my bike, it make a very loud noise. I put a video so you can hear what it sound like: https://streamable.com/e5jl8 Further info: I tried all these steps to try to fix the problem ...
4
votes
2answers
511 views

Are 52/34 chainrings compatible with an 11/32 11speed cassette

Im thinking of buying a Scott Addict 20 supplied with Ultegra 52/36 rings and 11 speed 11/30 cassette. Could I change this to 52/34 rings and 11/32 cassette?If not would 52/34 and 11/30 be a ...
1
vote
1answer
64 views

Putting a DH fork on an enduro bike: consequences?

I am into downhill (DH) but I don't live 1) in a country with a lot of DH parks with lifting services etc 2) near such parks. Still I like riding rough stuff (in forests or in town) so that I would ...
0
votes
5answers
216 views

Can a hybrid bike's stem be slammed to make it nearly as fast and powerful as a road or cyclocross bike?

Can a hybrid bike's stem be slammed to make it nearly as fast and powerful as a road or cyclocross bike? More aggressive positions are thought to improve power transfer. That means a better workout ...
0
votes
1answer
45 views

Can I install a rack if I install plugin mudguards?

I bought a Cube Cross Pro https://www.cube.eu/2019/bikes/trekking/tour/cross/cube-cross-pro-bluenorange-2019/ I want to install a rack and mudguards. I found these nice plugin mudguards https://www....
1
vote
1answer
72 views

Question about Wheel Bearings

I live in Virginia and built a wind mill using a bike wheel. Do I need to remove the wheel so the cold weather won't destroy the bearings?
5
votes
2answers
363 views

What's the best way to shield a rider from the wind in a group (most aero position in the group)?

Yesterday I caught up with a much stronger rider who was struggling with an injury but really wanted to finish. Moral support aside, we tried to get him on my wheel on the flats (which happened to ...
0
votes
1answer
101 views

Help identifying a bike model

Can anyone help identify this bike ? It is a Vivente bike but I cant figure out the model.
5
votes
4answers
1k views

Are carbon road bikes robust enough to use off-road?

Regardless of the tire clearance, could I use my carbon road bike off road too? Can it handle the stress and load? Wont it break ? Does a road bike needs to be more robust to handle the offroad, ...
0
votes
2answers
104 views

Can I fix or replace the quick release lever on my thru axle?

I've got a problem with the quick release lever on the front thru axle of the bike I use for a short commute (a several-years old Motobecane Fantom Cross Outlaw, FWIW). The last time I tried to ...
0
votes
1answer
65 views

Are there any cheap, wide tubular front wheels?

I was recently involved in a crash, which has cracked my front clincher wheel. I'd like to give tubulars a go and would like a wide rim so that I can fit some 700c x 25-28 mm tyres without the tyre ...
2
votes
2answers
112 views

Smartphone mount: stem mounted vs top tube

For those of you that have tried these, I'm wondering if the stem (or even bar) mount is preferrable over the top tube mount? Seems like having the top tube mount means you have to look further back (...
2
votes
1answer
64 views

Magura HS33 brake pads strongly pressed against rim, despite adjusting screw fully open. Too thick? Wrongly installed?

I have a Magura HS33 with EVO2 mount bought some years ago. I replaced my Magura HS33 brake pads. I have turned the brake lever adjusting screw as far open as it gets, but the brake pads are too far ...
1
vote
1answer
215 views

What is the top sprocket?

I am reading the Shimano specs and I cannot figure out what is the "top sprocket". An example: https://bike.shimano.com/en-EU/product/component/sora-r3000/RD-R3000-SS.html "Low sprocket" (I couldn' ...
7
votes
8answers
482 views

How can I cycle in winter while not being able to change work clothes?

I started recently to bike to work, where we have a shower and I can change clothes. However recently I also started attending an evening course, where there is no place to change. So when I commute ...
7
votes
2answers
713 views

What's the proper way to fit a hybrid/commuter bike?

What's the proper way to fit a hybrid/commuter bike? Most detailed bike fit articles seem to apply to road bikes but not so much for hybrid/commuter bikes which cycle commuters, recreational cyclists,...
1
vote
2answers
83 views

Identifying replacement freehub

I’ve been tasked to source a replacement freehub, any ideas what this type would be? Might be obvious forgive my ignorance! Forgot to mention, it’s from a Marin bike. That’s all I know so far
1
vote
4answers
206 views

Fat Tire Bike versus Road Bike [closed]

If I ride 20 miles on my Road Bike, what is that equivalent to on a Fat Tire Bike? More specifically (and technically), I would like to know how far I would end up riding on a Fat Tire Bike using the ...
4
votes
1answer
1k views

What brand is my chain?

It has '3f-2' stamped on the plates but I can't tell what the brand is. Thank you.
-1
votes
1answer
104 views

Are there folding bikes with safer - locked steering?

I see folding bikes have several more quick releases and possibly fail points - to fold in half and fold the steering column down, and connect the handlebar to steering column. The really awkward ...
3
votes
2answers
71 views

Pump for small tires

What is the best pump for small bike tires with narrow spokes? The pump head we have is large and is hard to place over the valve on our 20 inch tire. I've tried pump extenders but they are screw ...

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