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Questions tagged [folding-bicycle]

Questions about bikes that are designed to fold or collapse.

3
votes
1answer
104 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 ...
3
votes
2answers
561 views

What are these cable “unions” called

The Moulton bike can be taken apart for travel (just using it as an example, I don't have one). The cables that run from the handlebar to the rear triangle are not single continuous cables but are ...
-1
votes
1answer
112 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 ...
11
votes
3answers
3k views

Big dent on frame: How did this damage happen?

I just bought this second hand Ridgeback Impulse folding bike for my partner. I'm a wheelchair user and it was dark and rainy when I collected the bike. So... I didn't check it (facepalm) I just got ...
1
vote
2answers
66 views

Is a folding bike's chain more likely to slip?

I have recently purchased a Raleigh folding bike second hand. I had to take it back for servicing (within warranty) when there were problems with the gears and derailleur. The dealers have replaced ...
1
vote
0answers
46 views

upgrade traditional saddle clamp (not seat tube clamp)?

I'm currently restoring my folding bike and it has a large diameter (34 mm/1.34 in) seatpost that tapers to the standard 22 mm/0.87 in diameter at the end. The bike currently uses that traditional ...
5
votes
2answers
171 views

Wheel diameter affects speed? Comparing 20in Foldie wheel vs 700C wheel

I am currently riding a Foldie with 20in wheels and also a 700C road bike, and I see that (Subjectively) I can ride ~5kmph faster for the same effort on the road bike. I am curious to know how much of ...
3
votes
1answer
205 views

Is it possible to use BMX steerer (stem+handlebars) on fork on folding bicycle?

II want to replace my folding bike's steerer with a BMX setup. I've been told by a bike shop that it is not possible because the steerer tube protrudes 10 cm higher than the frame tube.
1
vote
0answers
76 views

Could you advise me on budget folding bikes [closed]

I figured the best way for me to commute to work (3 - 4km) during the summer may be riding a bike. The problem is that I live on the fifth floor and there's no elevator in my building, thus I need ...
5
votes
2answers
107 views

Pannier rack for larger diameter seat post

I have recently purchased an old, second-hand folding (or at least collapsable) bike, a Daewoo shuttle to be precise. In order to use it for commuting, I would like to fit a pannier rack onto it. It ...
1
vote
0answers
281 views

Folding bike rear derailleur upgrade help

Hey guys, I have the Tern Link B7 7 speed folding bike. It has 11-28T casette (you can see it in the picture) and I want to upgrade it to 14-34T one. So I bought the casette but the stock rear ...
1
vote
4answers
2k views

Cheapest way to make 8 speed folding bike a good climber

I'm planning to buy an 8 speed Dahon Mariner D8 folding bike (2018 version). I'm going add some bike bags to it and do little bit touring so I need good climbing performance. It's a bit difficult to ...
2
votes
4answers
544 views

How do airlines calculate the cost of a Brompton? [closed]

How do airlines calculate what to charge for a Brompton in a bag as checked luggage? I’m flying on Iberia and from their website it looks like they will charge me US$75 to take it from BOS to BCN, ...
5
votes
1answer
126 views

Many punctures on my 18" wheels Strida

I have a Strida with 18" wheels. Unfortunately the places I cycle seem to have lots of glass and I get a new puncture almost every week. I commute in London, so this is really unavoidable. The tires I ...
1
vote
0answers
370 views

How to improve band brake?

I have been working on a 26" folding MTB, and its coming together slowly. The rear wheel has a band brake and for the life of me I can't get it to work well. I have no experience with this kind of ...
2
votes
2answers
68 views

Citizen folding bike 3 speed - pedal slipping

My citizen folding 3 speed (gear change in hub). Slips as I pedal it. It appears the worst in gear 1. It does not do it with every revolution, but it slips frequently. How do I fix this problem?
2
votes
2answers
223 views

Why are folding bike warranties so short?

I am looking for an affordable folding bike with reliable warranty. So far all the bikes I looked at have 2 weeks to 3 months warranty for frame and manufacturers warranty for parts, nothing like 5 ...
3
votes
3answers
397 views

Front fender rubbing on tire

On a 16" folding bike, the front fender slider tends to release over time and increase the distance between the tire and the fender. This is a problem because, as the fender angle changes, the end of ...
2
votes
2answers
2k views

Chainring replacement for folding bike

I have a 20" bike with a single 42T chainring and a 6-speed sprocket. The top speed is pretty low (I'm used to racing bikes), calculated to be ~24kph @90 RPM. I've measured the 5-arm distance between ...
4
votes
2answers
571 views

Where is the best place to park a folding bike?

This is quite a generalised question, but I'm looking for some principals to follow when looking for parking for my folding bike, that I just bought this morning. I think the ideal situation would be ...
1
vote
0answers
131 views

Kids trailer (Weber hitch) on a folding bike (Tern Link)

Is it possible to attach a kids trailer (a Thule Chariot) on a folding bike? As I already have 2 bikes with a Weber hitch, I would prefer to use that on the folding bike as well. Currently, I want to ...
0
votes
1answer
123 views

I don't know what year my old bike is [duplicate]

I don't know what year my old bike is.(like is it a 1970's etc). I think it may be a 1970's, or something like that due to research but I'm still not sure. I know it's a French old make, I believe ...
0
votes
1answer
615 views

Identify this old folding bike that I got from the tip - an early Dahon?

please excuse my ignorance. I'm not into biking but i do like to rescue mainly junk from anywhere, charity shops, the tip, skips etc. so on sunday i was making a trio to my local tip and decided to ...
1
vote
1answer
205 views

Can someone tell me if my bike is rare?

I have had this bike for a while, it was a gift to my mother from my grandfather. Neither of us have been able to find it online or anything. On the frame it says "Swift-20M Folding Bike Patanta. It ...
3
votes
2answers
4k views

Shimano MTB and Road Components Compatibility

What chain would be suitable for a drive train that uses a Deore SL-T610 right shifter, Deore RD-T610-SGS derailleur, 105 CS-5700 10-speed cassette (11t-28t), and 105 FC-5700 crankset? According to ...
7
votes
3answers
2k views

Why do folding bikes usually have MTB components?

Most of the folding bikes I've seen, which are used for urban commuting/recreation, usually have MTB components except for the big chainring. If they're going to be ridden most of the time on paved ...
4
votes
1answer
339 views

What does 'Dahonesque' mean?

I've seen the term Dahonesque used to refer to some folding bikes, what does it mean? What is the connection between "Dahonesque" bikes and the Dahon company?
5
votes
1answer
880 views

V-brake noodle broken: replace immediately? With what?

I realized today that the front brake noodle on my folding bike is most likely broken. It looks normal as long as the wheel faces left or forward. As soon as the wheel faces right, however, the noodle ...
1
vote
0answers
68 views

Will removing extra chainring mess with chain alignment?

I have a folding bike with 1x6 speed. I plan on making it a 1x9. I saw this crank set and cassette, 3x9 speed, for a fairly cheap amount and was thinking of getting them and installing on my bike. If ...
3
votes
1answer
743 views

Milian Pere - Brompton child seat - installation instructions

My Milian Pere - mount to allow attaching a child seat to a Brompton folding bike - arrived in the mail today. This piece of hardware attaches to the Brompton. How do I attach a saddle to it so that ...
0
votes
2answers
652 views

Does more gear inches on a folding bikes work better?

Below are technical details of 2 folding bike that I am considering. Friends, can I safely assume that the option 2 with more gear inches would be a good choice. I am a recreational weekend rider. ...
3
votes
2answers
246 views

Downsize Chainring

I have a Montague Boston full-sized folding bike which ships as a fixie. I've added a Sturmey-Archer 8-Speed hub and now am trying to determine the optimal chainring size. The stock chainring has 42 ...
8
votes
2answers
4k views

Are all folding pedals a bit… bendy?

I have recently acquired a folding bike. One of the most irritating things is the folding pedals, as pictured: Pedal in folded position Pedal in deployed position, ready to ride Close up of pedal ...
3
votes
2answers
547 views

Seat post size on Schwinn Loop

The seat post (and the saddle) got stolen on my Schwinn Loop. I've searched everywhere but I haven't been able to find the diameter/size of the seat post so I can look for a replacement online. Any ...
10
votes
6answers
2k views

Are folding handlebars a good idea from an engineering standpoint?

A couple of Chinese stores have been selling folding handlebars: At first glance this appears to be a great idea since the handlebar width is one of the reasons that carrying and storing bikes can be ...
2
votes
2answers
3k views

How to safely transport a Brompton by air?

I now own a Brompton folding bike.  (Fortunately, I bought my plane tickets first, as I am also now broke!) Anyone here ever checked one into baggage in a B-bag, and suffer damage?  If so, what parts ...
1
vote
1answer
345 views

Low-height rear rack for Bike Friday New World Tourist folding bike [closed]

I'm looking for a rear rack for my Bike Friday New World Tourist (20" wheels). I've come across a bunch of rear racks like this one that sit high above the wheel. But I'm searching for one that is not ...
2
votes
1answer
426 views

Dahon Folding bike, seat came right off!

I was adjusting the seat on my Dahon Vitesse D8 when the seatpost quick release simply fell off (yellow piece in the images I supply) The piece that bends to stop the seat from moving came off ...
10
votes
3answers
764 views

How do people store bicycles in London?

I just moved to London. They seem to have a decent bike culture but I just spoke with a letting agent about renting apartments and she said that most apartments don't allow bicycles inside and most ...
1
vote
2answers
774 views

Can an Alfine 11 replace a Nexus 8?

An online store currently offers the Dahon Curve XL with a Shimano Nexus 8 IGH (The Dahon site shows the Nexus 7 model). I'd like to replace it with an Alfine 11. Does someone know if the OLD (Over ...
2
votes
1answer
148 views

Can I carry my folding bike by using the rack as a handle?

I put a new rack on this bike. The rack says it can hold up to 25 kg which is about 50 pounds. Can I use this rack to grab it and carry it while it is folded? The bike is about 35 pounds. Or this ...
3
votes
3answers
891 views

What to do with the white plastic tube in Dahon city vybe c7a?

Just got a Dahon city vybe c7a: It has a white plastic tube at the bottom, what should I do with it? It seems to prevent the seat pole from sliding down.
3
votes
2answers
2k views

Why can't I ride my city type (folding) bike uphill?

I'm a newbie when it comes to biking. I don't plan on taking it as a very serious hobby; I'm really more of just a leisure rider who enjoys touring around town, but I'd also like to be able to drive ...
3
votes
6answers
557 views

Advice on Folding Bicycle

I am planning to buy a folding bicycle (brand doesn't matter). Intent is commuting to work inside the city (5-6 kms one side run). Reason for folding bicycle is space constraint in my apartment. I ...
4
votes
2answers
3k views

Are folding bikes less efficient than full sized bikes?

I've recently been touring with my Birdy folder, and people constantly ask me if it's hard work to tour on a folding bike. Compared to my normal sized bike (which has the same gearing, 8-speed ...
-1
votes
1answer
65 views

Apollo Highway Brake Discs ? [duplicate]

can i add custom disc Brakes to the front at all ? Bike info here http://www.thebikelist.co.uk/apollo/highway-700c-trekking-hybrid-bike-2010 Thanks
5
votes
2answers
1k views

Sliding chain back on hub gear bikes

I got a folding bike 2 months ago and got my first hiccup. It has a 3-speed hub gear and while changing gears today, it seems like the chain slipped off the smaller chainring near the back wheel into ...
4
votes
2answers
3k views

Folding bike for commuting and touring

When looking for a compact bike for storage and carrying reasons, a folding bike seems a great deal. But how do folding bikes perform for trips longer than 20km ? I'm looking for a bike I would use ...
2
votes
1answer
844 views

Koolstop set compatible for folding bike?

Is this Koolstop Road Pad Holder and Brake Pad Set compatible for folding bike ? My bike is using Dahon Speed P8.
3
votes
1answer
4k views

What's an “Auto-Mini” folding bike? Can I use one for decades without having to replace the frame?

I've been thinking of buying an internally-geared folding bike for commuting (5 km each way) and errands. I want to spend $100-$200, but I want a reasonable-quality frame; I don't want to ever have to ...