All Questions

1
vote
1answer
90 views

What is year and model of my Diamondback? [duplicate]

I have a Diamondback frame I'm guessing around 1984 or 85 serial # F4042789
1
vote
1answer
115 views

I need some help identifying a bike I just acquired

I need help identifying this bike.
2
votes
2answers
63 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 ...
5
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
108 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
257 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
96 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
114 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?
1
vote
1answer
117 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
192 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
112 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 ...
1
vote
0answers
38 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
1answer
58 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
84 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 ...
2
votes
1answer
67 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 ...
0
votes
0answers
45 views

Womens' Schwinn Spitfire circa 1958

The serial number is E846840 and it's stamped Schwinn Approved beneath the bottom bracket. Is this a Chicago built Schwinn?
0
votes
2answers
109 views

Loud “thunk” sound each time my shoes pass the 1 o'clock position with both shoes

Folks, I need a hand. Does anyone know of a bike mechanic that can diagnose problems via FaceTime or another audio/video app? I ride strictly indoors (I’m in Iraq) and there’s a knocking coming from ...
3
votes
2answers
882 views

Can hydraulic brake levers get hot when brakes overheat?

If your hydraulic brakes get hot, can this heat ever travel to your brake levers. Can your levers feel hot or is this my imagination?
5
votes
2answers
528 views

Spoke max tension

When replacing spokes on the rear wheel of my road bike using a tension meter what should the max tension be? I had a spoke snap whilst riding a couple of days ago and it became lodged in the cassette ...
4
votes
1answer
73 views

Cantilever Power Hanger

I have bought an old mtb with cantilever brakes. Front has regular yoke and works just fine. Problem is in the rear, where there's a Power Hanger bolted into the frame just above the tire. It looks ...
1
vote
3answers
142 views

Puncture resistant tire vs puncture resistant tube

When would you use a puncture resistant tire vs. a puncture resistant tube?
7
votes
5answers
265 views

Can I patch a tire (not a tube) that has a hole?

I've got a relatively new bike tire (hard case Bontrager) that got punctured by a nail. So now the tube bulges out of the tire and is of great risk of bursting (though I biked several miles before ...
0
votes
0answers
30 views

Clarks M2 hydraulic self bleed

Hi are Clarks M2 hydraulic self bleed or not if someone could let me know it will be a lot of help thanks
2
votes
1answer
137 views

Aero bike considerations for purchase

I am trying to decide between aero bikes from two different brands. What are some of the things I should think about when comparing these two (or any other) aero bikes?
0
votes
2answers
84 views

SRAM x5 derailleur fitting

So I am a complete novice when it comes to bike maintenance but working on a project mtb, old Saracen rufftrax. The rear derailleur was knackered so fitting a new SRAM x5, my question is do I need to ...
4
votes
1answer
136 views

What is this part of a bicycle trailer called, and where can I find a replacement?

I have a Schwinn double bicycle trailer for my kids, but it is broken. The black plastic part pictured fits at the base of the right wall and connects it to the trailer frame. A bolt goes through the ...
5
votes
5answers
2k views

How much stiffer are 23c tires over 28c?

I now have some Kenda 28c tires on my bike, and i got a pair of continental gp 4000 in 23c. I want to swap them because of the superior quality of the continentals, but I'm afraid that they could be a ...
2
votes
1answer
153 views

Sudden deflation of a mountain bike tube without a bang?

I pumped up my flat tires on a Sunday afternoon and on Monday nothing went wrong, but on Tuesday, my bike was left in the rain followed by scorching sun. During that time, both of my bike tires ...
10
votes
0answers
136 views

Ivanhoe ladies with wooden rims, wooden rear fender, wooden chain guard

Attic find, any thought as to age, options not on a stock bike, value range.
0
votes
3answers
107 views

Changing 23mm tyre to 25mm - considerations?

I got a L size Opus Allegro 4.0 (2014) which came with Vittoria Zaffiro tyres 23-622 (700*23c) on an Alloy Shimano Asoo WH-R501 wheelset 622x15c. I'd like to fit a wider tyre to improve my experience ...
-1
votes
0answers
61 views

Can anyone help me i.d. this Claud Butler?

Can anyone help me identify this bike? Obviously it’s a Claud Butler but I’m struggling to find what model it is.
6
votes
3answers
3k views

Can I pump my MTB tire to max (55 psi / 380 kPa) without the tube inside bursting?

I have a e-mountain bike and I use to commute to uni every day. I have heard that higher tire pressures give you a bit more speed. My tires say I can pump to 55 psi (380 kPa) but I don't know if my ...
1
vote
2answers
57 views

Ball size to ball bearing lookup possible

Just found a tiny metal ball in my bike fiddling corner. I haven't worked on any ball bearing since the last cleaning, so I'm a bit confused where it might have dropped out of. It's pretty exactly 3mm ...
2
votes
0answers
39 views

What's the type of polymer material used in friction bushings in Sram rear derailleurs clutches?

The friction bushing of an (older) Sram rear derailleur clutch is shown below. What type of polymer material are these made out of? I'm also interested to know what friction materials are used in the ...
1
vote
1answer
78 views

Front derailleur range suddenly has become very short

For a while when I was riding, there was a stiff feeling changing from medium to high on the crank. Yesterday it wouldn't change at all. I checked the adjustment of the High and Low screws by ...
1
vote
0answers
27 views

Finding compatible fixed-gear cog and lockring

I have a flip-flop hub that came stock on a Trek single-speed. I'd like to install a fixed-gear cog and lockring opposite the existing freewheel. How can I determine which cogs and lockrings are ...
1
vote
2answers
118 views

Quick release and tires moving in the frame?

I have a Schwinn Boundary 2017 and it came with a quick-release front wheel. I noticed that no matter how tight I put the skewer it would be in a different position after extreme braking. The bike ...
9
votes
1answer
197 views

What is the science behind interval training?

How did coaches/scientists come up with specific interval training programs like X sets of Y intervals at Z heart rate/power, lasting T seconds? How are these numbers produced? Are these trial and ...
2
votes
2answers
69 views

Rear V brake replacement

So I am replacing the rear v brakes on my old Saracen ruff trax, callipers, cables and pads. My questions is... Unless I pull the brake cable tight through the calliper the pads do not get close ...
2
votes
1answer
123 views

Why do I never get DOMS (delayed onset muscle soreness) from cycling but I do after walking?

I'm in my late 30s but never in my entire life did I get delayed-onset muscle soreness (DOMS) from cycling. But even walking at a slow-moderate pace (less than 6 kmh / 3.7 mph average) for 2-3 hours ...
3
votes
1answer
81 views

Problems with cheap housings

So, I converted my road bike from downtube shifters to STI brifters, and I noticed that the cable housings don't sit properly in the downtube cable stops, do you think that would be a problem ? EDIT:...
1
vote
1answer
103 views

What is this BMX brand logo?

I bought the a new bike at the local BMX shop but what brand is this logo? I don't have any idea.
1
vote
1answer
221 views

Is this a crown race?

I've bought a headset and I'm not exactly sure what goes where: Presumably, the thing on the left bottom corner would be crown race, but it's not closed and doesn't really fit snugly to the bottom of ...
2
votes
2answers
93 views

I want to increase my gear range, will my front gears affect the cassette I can use?

I'm contemplating increasing my road bikes gear range. I have a race coming up that has some significant climbing. My question is if I want to increase the teeth on my rear cassette will that be ...
10
votes
2answers
1k views

How to install round brake pads

I decided to change my bike's brake pads myself. My bike has the following brakes: Promax DSK-915. I contacted the online shop I ordered my new brake pads (and my bike last year), before purchasing, ...
2
votes
1answer
79 views

Rickshaw electric conversion

Is it possible to buy a traditional pedal rickshaw and stick an electric bike conversion kit on it? The rickshaw I've seen is the type when the rider is at the rear and so has two wheels at the front ...
1
vote
0answers
61 views

Should I replace with 8sp or upgrade to 9 speed? Or 10 speed? [closed]

The original shifters that came with my 2001 Kona Blast MTB is gone. Also, the cassette and chain are long over due for replacement. Hence, was think of dropping the 8 speed (3×8) altogether for the ...
2
votes
1answer
288 views

My cassette model name doesn't seem to fit the actual cassette description.. (CS-HG50-9 and CS-HG500-10)

I have a Ridley Fenix classic bicycle that I bought second hand online. (all components are Shimano Tiagra) A year has passed and I figured I should really change the chain and cassette altogether. ...
16
votes
1answer
135 views

What causes tire sealant to seal?

I've heard from others that air is what causes sealant to seal. People have said they've read that "somewhere" but I never seem to be able to find those articles. The reason I think air can't be the ...

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