Questions tagged [folding-bicycle]
Questions about bikes that are designed to fold or collapse for ease of storage.
119
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I used acid to clean rust from parts on resto project. Should I worry about hydrogen embrittlement?
I have a 1970s U-folder type bike which was very crusty when I acquired it. I removed the rust by soaking the parts in lemon juice for between 24-72 hours, depending on the part. Something I wasn't ...
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Old raleigh folder
Somebody gave me a raleigh folder.Despite being left outside for several years it runs smooth and tyres stay up!!I was just wondering about the folding hinge-see pics.Is it just the thumb nut that is ...
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Btwin tilt 120 brakes
I feel like the stock brakes of my hilt 120 are not strong enough, the rear one is the one giving me trouble, I thought about changing them, but is it worth it?
Does anyone have suggestion?
STOCK ...
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What type of tyres for a 20inch, 18kg folding electric bike for hilly off-road and on-road? (wet grassy conditions, rarely muddy)
I currently have Kenda k924 20inch x 1.75 on a 18kg folding ebike (carrera cross city, see pics below). I cycle on-road and off-road in a hilly area as my main form of transport (the roads and the ...
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Gravel + Folding Bike
Folding bikes have typically been built for commuters and are designed to be compact and light weight. In the spirit of discovery, i wanted to ask if anyone has seen or tried to build a gravel focused ...
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brake calyper/bridge types and question- single screw to the frame
I need to replace a front brake for a city/folding bicycle. but I am not used to these "brake bridge" system; I am more into the MTB scene.
for some reason the calyper in the picture ...
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Montague FIT folding bike with “snaking” frame
My 2012 Montague FIT folding bike has started to “snake” especially when riding at speed downhill. I have tightened the frame quick release and inspected and tightened the pivot nut but the snaking ...
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A Derailleur (short, medium cage) for a 34T max. cog ring sprocket
I need suggestions from experience or a table of compatibilities in order to find a compatible rear derailleur for folding bicycles (20" and 18" wheel)
I am aware that many the 28T max cog ...
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Seat post keeps sliding down after cleaning and lubricating folding bike
The last time I used my folding bike I gave it a thorough clean, and used WD-40 on the moving parts and then lubricated them again with a silicone-based lubricant spray. This is an eleven-year old ...
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Convert Dahon Mariner D7 to belt drive and internal hub?
Is it feasible to convert a Dahon Mariner D7 to use a belt drive and an internal 7 speed hub? Any ballpark estimates for cost of parts?
I ask because I am rehabilitating my Dahon sailing bike of 15 ...
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Why aren't 16" wheel city bikes more common?
I love the Brompton with its obvious folding capabilities. However the best part of the bike for me is not the folding but the fact that it's small with its 16" wheels and light/compact frame. I ...
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Prevent folding bike from unfolding
I bought a vintage folding bike recently. The problem is that when I fold it there is no mechanism to keep it that way.
I use a velcro strap but it's quite a hassle to put on when I'm trying to catch ...
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Why are folding fat-tire bikes all-electric?
There's an area in my state that has a good number of trails for mt biking, snow biking on large (4-in tire) fat bikes. I rented one at one time and it was fun in the snow. Many trails there are ...
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Is it possible to switch from 20" wheels to 24" wheels on the same frame?
I'm trying to figure out the feasibility of a 20" mini-velo for city use, which can then be converted to 24" MTB wheels for rougher terrain.
Assuming the wheels clear the fork and frame, ...
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Any idea what this is before I buy it?
I Found this locally. What is it? It is currently for sale for what looks like a good price and it's in pristine condition, no rust - looks like it's never been used!
Do you know what kind of bike (...
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Are small radially laced motor hub wheels like Swytch trash?
I saw a bike that recently had this kit installed on it, and was surprised at the radial spokes:
From having done rebuilds on 20" motor hub wheels, I can appreciate the temptation to look at ...
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How to remove the fork off this Peugeot Nouveau
I have this Peugeot Nouveau fold up bicycle that I'm trying to restore, but I can't manage to remove the forks from the frame. I've removed the handle bars and the stem(?) as well as the pieces that ...
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Bicycle weight limit (carrying capacity) increase
I have a cheap 20" folding bicycle. Its specs say that the max rider weight is 105kg. The frame is steel (vaguely defined as "HiTen" steel).
I want to convert it to electric, so will be ...
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Consultation needed! To repair or throw out?
i found these two bikes by the dumpster- Dahon Boardwalk folding bikes. They are totally rusted by the salty air (it's a humid salty beach climate). The chain is rusted and when I push the pedal, the ...
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Why fit a usb on my ebike battery when not even connected
Id like to ask if anyone else has a viking gravity ebike with a internal frame battery pack which has a usb port included. Thing is i found out that it wasn't working even though its a brand new ...
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Locating the bicycle manufacturer
I have purchased a fold-up all-terrain mountain bike serial # LDR15080363 that I would like to restore to the manufacturer’s specifications. Unfortunately, I have been unable to confirm who the ...
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Upright bicycle efficiency & seat movement
The Kwiggle is folding bike that has been around for a while now (even though doesn't seem to be for sale yet): https://kwiggle.odoo.com/en_US/startseite
Apart from it's folding capabilities I was ...
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Bike transport while touring - would a folding bike be better?
So I’m thinking of touring with my lovely self made diamond bike with 28” wheels that I built from used bike parts. I love to ride on something that I built but I wanted to be able to tour a lot and ...
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Does anyone has an experience putting mini-velo into a standard-sized luggage?
Personally, I don't trust the designs of many folding bikes mainly because of frame failure issues. So, I am thinking about getting a mini-velo bike, but I wonder if it is possible to fit the bike ...
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Has a BMX bike ever been transformed for touring?
BMX frames are notoriously small and nimble for acrobatics. I was curious if the same frames and the same 20" wheel bikes were ever used for touring.
Obviously the single-gear and the low-seat ...
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367
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Adjustable Andros-like stem for 31.8 handlebar
I have used the Tern Andros stem system and got one with it well.
Recently I acquired a Riese and Muller folding bike, which has an adjustment system which (for me) is less comfortable. It puts the ...
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3
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1
answer
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Strida single speed - upgrade to 2-3 speeds possible?
Would it be possible to upgrade a single-speed Strida to 2-3 speeds?
I know there is a Strida model with 3 speeds but the frame is different with respect to the one of a single speed. In particular, ...
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226
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Alwasy getting a flat rear tire on my 14"inch folding bike
I just bought my 14" folding bike and I always getting a flat tire on the rear. It happened 4 times in a span of three days. 1st flat was with the stock inner tube, 2nd flat is with the new inner ...
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Dahon Speed Uno. Main frame hard to fold
Is there a way to lubricate or adjust the tension on the main frame hinge on a Dahon Speed Uno? New bike, and it is extremely difficult to fold in half.
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Front V-brake not working
My V-brake isn't working and I am not sure how I can fix it. I have uploaded a photo of it. Any advice or tips?!
I think the flange might have come off the noodle and got stuck in the boot - any tips ...
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915
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Increasing length of seatpost on a foldable bike
One of my bike is this little Dohiker 14" electric bike, but I actually pedal a lot when riding it, and the seatpost is a bit too short. It is about 50cm long, and I would need a few more centimeters. ...
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Does a Tern Cargo Rack fit on a Bike Friday NWT (whilst accomodating Ortlieb Backroller Classic Panniers)?
I was wondering, whether a Tern Cargo Rack fits on a Bike Friday NWT with a Sram Dual Drive 27 whilst accommodating Ortlieb Backroller Classic Panniers. The problem with rear racks, the Sram Dual ...
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Using a brake noodle on the gear cable?
I'm working on adding a front derailleur to a folding bike that started as a 1x setup.
Today I got a front derailleur mounted, and realised that I need some form of cable stop for the inner cable. ...
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Tern Spartan (front rack) on Bike Friday NWT
Does anyone have experience with putting a Tern Spartan™ low-riding front rack on a Bike Friday New World Tourist? Will it fit?
Tern Spartan front rack:
Bike Friday NWT
Bike Friday standard front ...
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1
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Fiido D2: shock absorber broken
I bought almost an year ago a Fiido D2 bike. I use it everyday for my commute to work and unfortunately it broke.
I brought it to a bike repairer and he said that there's nothing he can do. The only ...
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Type of permitted folding bikes on London trains & Tube?
I have found quite a bit of information about taking folding bikes on trains and the Tube in London. Specifically it says you can take a folding bike pretty much anywhere.
However, having examined ...
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How can I replace my front cog... or fix slipping off on folding bike?
I have a Faulkner folding bike and I notice often the 6th gear, high gear falls off switching to high gear. Someone mentioned that the cog might be a bad choice for the front of folding bike and may ...
- 461
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How can I stop someone borrowing my bike anymore? [closed]
There's this kid I've been riding with for quite some time that keeps borrowing my bike non-stop leaving me riding his broken bike. Not that I dislike him riding my bike or anything, is just that ...
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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 ...
- 299
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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.
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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 ...
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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 ...
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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 ...
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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 ...
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