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2
votes
0answers
48 views

Why do my handle bars wobble from side to side?

I am a gramma with my first electric bike. When I ride I notice my handlebars and wheel tend to flip from side to side a lot. Is this because I am out of practice riding or does something need ...
0
votes
0answers
22 views

Put larger tires on my road bike rims

My rim size is 622-20 can I fit a 622-35 or a 622-40 tire on my rim. My forks are wide
3
votes
2answers
148 views

Why does the manual for inner tube say max psi is 4.5?

I recently picked up a pair of Schwalbe Aerothan inner tubes which are made of plastic and very lightweight. The manual for these tubes indicates that the user should not inflate past 4.5 PSI. My ...
2
votes
2answers
28 views

Which Shimano Centerlock Rotors Work with Avid BB7 Mountain Brake Calipers?

I spent a lot of time trying to figure this out, so I thought I would post this to maybe save others the hassle. The problem: Avid BB7 Calipers don't play nice with many of the popular Shimano ...
3
votes
0answers
56 views

Effects of rust on steel frame strength

I have some rust on my front forks. This question tells me how to deal with it, but I'd like to know whether it will be impacting the structural integrity of the forks. I'm planning on going touring (...
1
vote
1answer
46 views

Hollowtech BB and chain casing

I will have to replace my crankset to switch to a 26-36-48 one. It is on a BSA 68 mm aluminium frame. I have a chain casing on this city bike (MTB converted to city). Is it a problem to use a ...
0
votes
1answer
25 views

Minimum chainring gap for front derailleur

On my city/trekking bike, I have a Shimano Alivio crankset FC-T4010. It was first delivered with 22-32-44 chainrings. After a while I calculated that with a 38 chainring, I was able to ride 99% of the ...
0
votes
1answer
62 views

What is the best way to attach a Presta Valve?

I attached a public bike station's Presta valve today - lost all the air in my tyre in the process and it got completely deflated.
0
votes
0answers
22 views

How should I reinstall parts on my axle when I forgot what order they were in?

I got carried away while disassembling/removing the freewheel, hub, cones, washers, and nuts on my rear wheel's axle, and now I'm not quite sure how it all goes back together. I was a fool and didn't ...
6
votes
2answers
764 views

Why does my vintage Shimano rear derailleur come with brake style cable housing?

I got a NOS Shimano RD-6400 rear derailler and it came with cable housing that I usually see on brake cable housing with that thick wire coil inside. I always thought those aren't suitable for ...
0
votes
0answers
22 views

Are there stepped ferrules for 4mm housing?

I'm looking for stepped ferrules that fit my jagwire shifting cable housing (4mm) and the cable stop on my 80's steel frame (aprox. 4.8mm). Do these exist?
0
votes
1answer
67 views

Concerned about SRAM SX Eagle

I am currently looking at 2 hard tail MTBs, namely the Grand Canyon MTBs from Canyon, especially the Grand Canyon 7.0 and... Grand Canyon 8.0 and the difference seems to be 200 EUR which translates ...
4
votes
1answer
314 views

132.5mm dropout spacing with a 130mm hub AFTER it has already been used with a 135mm hub

I have a steel frame with 132.5 mm dropout spacing, the manufacturer claims it is compatible with 130mm or 135mm hubs...but I wonder if it will remain compatible with 130mm hubs AFTER it has been run ...
1
vote
0answers
25 views

Clarification needed on hydraulic disc caliper and lever compatibility

I have a Scott Solace road bike that uses Shimano BR-RS805 hydraulic disc calipers. The hose spec is BH 59. I want to change from drop handlebars to Jones H handlebars. I will need new brake levers. ...
2
votes
1answer
174 views

Sound coming from back wheel

After the crash I straightened back wheel, and cleaned and lubricated the chain, but now spinning the wheel causes sound as if there is something wrong with bearings. Here is the video: https://...
8
votes
10answers
2k views

How practical are clipless pedal shoes on a long bike tour?

In the last years I did a couple of long bike tours. So far, I always had platform pedals with pins on my bike and I've worn "normal" shoes. For my next tour I'm considering clipless pedals. ...
0
votes
2answers
43 views

Chain drops off outwards betweeng plastic guard and last cog on crankset

Chain drops off outwards between plastic guard and last cog on crankset. This effect i mostly managed to remove by moving front derailleurs inside (not happened since). But looks like the core issue ...
2
votes
1answer
74 views

Aluminium “white rust” on roadbike. How bad is my situation?

After some research I did not find similar photos/examples to mine so decided to ask. Recently I have bought used aluminum road bike. I did check all other parts and they are in good condition, but ...
0
votes
1answer
36 views

Sora shifter broken

Wacky shifting on my 9 speed Sora shifter. It's fine going up toward biggest cogs but skips 2-3 gears when going down from the biggest cog. It shifts fine when going down from the middle to smaller ...
-3
votes
0answers
26 views

Gitane BMX 8 info

I've just acquired a new old stock Gitane chrome BMX frame and forks set I'd like info in yea.frame number is EO28594 also 08250.
1
vote
1answer
55 views

Can I use an expanding plug rather than a star fangled nut in a steel steerer?

I've got a Genesis Equilibrium 725 steel frame and fork that came with an unbranded (but said to be Prestine) headset and Genesis-branded top cap and star fangled nut. The headset and nut aren't ...
0
votes
3answers
36 views

Will 180mm rotors fit my Carrera Vengeance Ltd. Edition bike?

So I would like to get Clarks M3 hydraulic disc brake set but the only size available is 180mm but i am not sure what to measure to see if this will fit my carrera vengeance ltd edition 16 inch frame ...
3
votes
1answer
71 views

Too much Travel when installing Mechanical Disk Brake

I am replacing the cable for the rear mechanical disk brake on my brothers MTB, because it is all chewed up. Now when loosening the cable on the rear brake (barrel adjuster on lever and brake all the ...
3
votes
3answers
521 views

Will brand matter between a rear derailleur and front derailleur?

I had a crash recently that destroyed my 8 speed sensah reflex rd. I replaced it with a 9 speed shimano sora for a bit of upgrade but after 4 tune ups by the mechanic its still not right. Just so ...
0
votes
0answers
22 views

What Dahon adjustable handlebar stem would suit my Dahon MU XL Sport Bike

I own Dahon Mu xL Sport foldable bike and use it for exercise. I have a back problem and would like to fit a Dahon adjustable stem to keep my riding position more upright. I have tried adjusting the ...
1
vote
1answer
75 views

Help identify this vintage bike

I would appreciate help in identifying this bike. I was thinking the bike could be a Raleigh as they are common in the UK however the moulding on the tubes is strange to me. I'm guessing the bike is ...
3
votes
3answers
339 views

Are center lock rotors less likely to rub or resonate while riding than 6-bolt rotors?

I use 6-bolts hub with 203mm rotor and despite it is well aligned and rub free sometimes when riding (even on flat surface) there is vibrations coming (I guess) from crankset and/or road enough to ...
1
vote
1answer
32 views

No return spring in SRAM Rival 1 brake lever?

I bought SRAM Rival 1 mechanical brake lever and a Sram Rival 10 speed brifter. I'm used to brake levers having return springs as well as brake calipers. The Rival brifter indeed does have a return ...
0
votes
2answers
102 views

Can I fit 27.5 or 29 tires on 700c rims?

Id like to go with wider tires, but there is not tires 2.0 inch that is made for 700c rims. So is there any alternative to that?
-1
votes
0answers
70 views

Handlebar grips designed with transparent reliable material and turn light diodes inside

There are few turn light designs for a bike, wireless, manual with battery inside, regular cable lights. Regardless of the operational design, what options are avaliable for integrated turn lights? I'...
-1
votes
2answers
66 views

Strava, how does segment get created?

I've just been introduced to Strava app. I heard Strava has a concept of segment where individual's performance is recorded and compared. Just out of curiosity, how would segment get created? I don't ...
1
vote
3answers
59 views

Do specification sheets for older Shimano components exist?

You can find official Shimano spec sheets on their website. They reach back to the year 2004. Do older spec sheets from the 80s and 90s exist?
2
votes
0answers
38 views

DT Swiss 370 hub not spinning smoothly in thru axle frame (end caps?)

I have a brand new rear wheel that uses a DT Swiss 370 hub. (From what I understand, the 370 is the same as the 350 except with pawls instead of a ratchet.) I'm trying to use it on a 12x142 thru axle ...
0
votes
2answers
102 views

Aluminum fork: paint defect or sign of strained?

I know there's a lot of question regarding paint defect or crack. But I need your opinion about this. Recently, I bought new bike but discounted and it's the last piece of it. On the back of the ...
1
vote
0answers
48 views

Fenders for Marin Four Corners 2020

I bought a Marin Four Corners bike and I have a problem with choosing fenders. I found information in the web that SKS Velo 65 fenders fit there, but during installation it turned out that they do not ...
-1
votes
1answer
70 views

Rebound doesn't work

I have recently had a really hard landing and bottomed out my fork, this time it was different though, when I went back to do the jump again I noticed that when I changed the rebound setting it wouldn'...
2
votes
3answers
178 views

What are the typical range of maximum braking friction forces?

There are many non-bike applications which benefit from using bicycle hardware. Case in point, there is a long and rich tradition of using bike parts in aviation. One particular area of interest is ...
0
votes
2answers
77 views

Aluminium front and carbon rear wheel on hardtail?

I recently got a used hardtail MTB. (Specialized Epic Elite) It's got Roval SL Control 29 - which is pricey. The front has 24 spokes and back has 28 spokes. Now I want to install a dynamo on it and ...
6
votes
6answers
3k views

Which type of course is the fastest for a 10 km TT? A completely flat course or a course with 5 km uphill and 5 km downhill?

There are two types of courses that I am considering for a 10 km trial: Completely flat. 5 km out and 5 km back. 5 km uphill at a grade of 1%, and 5 km downhill on a grade of 1%. Assuming you start ...
6
votes
2answers
1k views

How to make a 10 year old electric bike battery work better?

I have taken a 10 year old electric bike out of the garage a few weeks ago after not having used it for multiple years. The bike is an elops 7 bought at decathlon with a geonaute battery. It still ...
2
votes
2answers
200 views

To buy this damaged carbon bike or not?

I'm looking to get an MTB and have been looking for this particular one for quite a while but stock is hard to get hold of. I managed to find one in a store but the bike is damaged unfortuntely and ...
3
votes
0answers
59 views

How can I remove very stuck headset spacers (alu/carbon)

Working on a bike that has had significant indoor turbo usage, (i.e. a lot of sweat has run down the headset) and corrosion has bonded the aluminium spacers to the carbon steerer. The steering is ...
1
vote
0answers
156 views

which motor is used to change gears in automatic gear shifting cycle now-a-days?

I am doing a project on automatic gear shifting. I need to choose which motor will be used to change the gear. I have found a previous question on this topic. An answer mentioned: If you used a ...
0
votes
0answers
21 views

What size of tyres can I use on my BTwin Original 5? [duplicate]

I own a hybrid, BTwin Orginal 5 which is almost 5 years old. Lately I've been doing a lot of road cycling. This bike comes with 700x42c ISO 44-622 size tyres which weigh in around a kg per pop. I wish ...
14
votes
5answers
4k views

I have slipped off my bike 3x in the last 2 months - will changing tyres help?

Recently picked up a used Boardman Hybrid Team and it's my first bike after several years on boris bikes in London. I was doing great in the summer but recently have slipped/skidded 3 times in last 6 ...
0
votes
1answer
90 views

Triple Chainset

Trying to replace my 52/42/32 front 21 speed chainset with same. The outer chain ring 104bcd 52t would also be OK. Unable to find. This is for an English trike.
5
votes
3answers
693 views

Rear derailleur at limit, chain still rubbing

I gave my bike a thorough service recently by pulling it apart and cleaning/re-greasing everything. Now everything is back together and I just can't get the rear derailleur to work properly. The H ...
5
votes
4answers
364 views

Using a chain-type oil filter wrench as a chain whip

Long story short, I need to remove the rear cassette on my bike. The cassette is a pretty basic Shimano one, and the drive shaft bit I bought a few years ago looks like it also fits the lock ring. ...
5
votes
2answers
254 views

Wearing short sleeved merino by itself?

I heard merino is for cool-cold days. Maybe I heard it wrong. Then I thought people use it for baselayer (something you wear under your jackets). But it seems it's not the case based on some reviews/...
0
votes
1answer
128 views

Importance of spoke count for touring?

I bought a used bike which has 24 front spoke and 28 rear spoke. I'd like to use this bike to go Tour divide. Do I need more spokes on front? I'd like to setup a dynamo system, I see there are not ...

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