Questions tagged [folding-bicycle]
Questions about bikes that are designed to fold or collapse for ease of storage.
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Can front gear be replaced on a Retrospec Judd folding bicycle?
The Retrospec Judd folding bicycle has rather high gearing, 48T front, 18T back, around 53 inches gearing. Is it possible to replace the front gear with a 40T, say? That would give the bike about 44 ...
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Derailleur HANGER to replace an old Sunrace with its own hanger
My old folding bike does not have a hanger in the frame for the derailleur.
However, it has a SunRace M2T derailleur that includes its own hanger.
But I need to replace it, as I replaced the 5-speed ...
- 375
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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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