Questions tagged [dropouts]
For questions about dropouts on bicycles. Dropouts are a kind of fork end where the wheels are attached; we often use "dropout" for any slot to hold the axle at the end of forks, but strictly speaking, a dropout is a fork end where the wheel can be removed from the frame without taking the chain off first.
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Rear wheel slipping out under load
My commuting/cyclocross bike (a Surly Crosscheck) has a problem.
If I tighten the quick release skewer to a normal level, sort of firm to close it, then if I step on the pedals hard at some point, ...
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Are there tugnuts made to fit forward facing horizontal dropouts?
Are there tugnuts meant to fit forward facing horizontal dropouts such as those on a Surly Cross Check, All City Space Horse, or Salsa Cassaroll which won't block rack and fender bosses and keep wheel ...
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Dropout damage mystery, how to fix it? [Photos and videos]
This is a 90's aluminium frame with 130mm spacing between dropouts which originally had a 7 speed cassette. 2 years ago I changed the rear wheel for a standard 135mm and put a 9 speed drivetrain. I ...
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"Proper" cycling posture on a road bike with drop bars?
Sometimes I feel a little pain in my lower back after cycling (nothing too long, mainly cycling around London for general commuting...5-10Km). It could be due to a number of reasons (I have a bad back ...
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What is the purpose of this rear dropout screw?
I am a long time MTBer who just got my first road bike. This is a photo of the left rear dropout. The screw I'm talking about is the little silver one just above the axle. There is a groove cut into ...
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Anti-rotation washers (non-turn) washers in non-parallel dropouts?
I have a Shimano Alfine 11 Interally-geared hub and am fitting it to an "M5 559 shockproof" recumbent. The wheel is built and true and runs nicely.
However I have a problem with the anti-rotation ...
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Rear wheel won't stay in position
I'm a bit at my wits' end (not that I know that much about bikes).
I used an old Gazelle Formula Randonneur frame and switched out most of the parts.
However, after some time of (rather light) driving,...
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How to enlarge dropout slots?
I have a Raleigh Grand Prix and was trying to put a modern wheelset on it, but the front dropout slots are too narrow to fit the axle. Is it safe or possible to enlarge the slots? The fork is chrome ...
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How do I fit this pair of chain tensioners on my single speed bike?
I have these chain tensioners:
How do I install them correctly on my single speed bike? Do they go on the inside or outside of the frame?
My dropouts look something like this:
Apologies if the ...
- 431
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Rear dropout adjustment screws on fixed-gear conversion
I have a Surly Cross-check that I absolutely love and adore to pieces. I've also converted it from a geared bike to a fixie and am wondering if I still need the adjustment screws (see picture, in case ...
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Conversion to horizontal dropouts (for fixed gear), V-brake
If I convert vertical dropouts (as on picture) to horizontal dropouts as on youtube video by cutting and welding:
.
Will there be any challenges with the V-brakes ? If ...
- 1,002
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Nut dents on stamped dropout
Problem with stamped dropouts on singlespeed. There were dents from the nuts. It became inconvenient to operate the bike (the wheel is poorly fixed and constantly moves out). It is impossible to ...
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Why do low-quality bikes have horizontal dropouts, even though they aren't fixed speed?
Though convenient vertical dropouts and standard derailleur mounting are appearing on low-end bicycles, a lot still use horizontal dropouts, without any fittings for trim to return the wheel axle to ...
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Shimano Nexus 3 — what anti-rotation washer to use?
As I described in my previous question, I attempted a gradual conversion from a dérailleur to a Shimano Nexus 3 gear hub. I have installed the hub, keeping the dérailleur's pulley for now, with ...
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Gap between fork and dropout
I’ve just bought a secondhand bike (with an ~80’s Dawes steel frame) and on checking it over I noticed there’s a gap on one side of the forks, where it meets the dropout. The top side and bottom of ...
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Need I mount my wheel flush to the top of my fork ends?
Using 28c tires with a recently purchased carbon fork, I found I had only ~1mm of tire clearance from the top of the brake caliper. However, if I mount my wheel slightly lower in my fork ends so that ...
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Converting Belt Drive Bike With Paragon Sliders to Conventional Cassette
My internal gear hub broke on tour in Kenya, and now I'll need to convert my bike to use locally available parts. The frame uses Paragon Machine Works sliding dropouts who makes inserts which would ...
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Dropouts too short for internally geared hub
I am trying to change from a derailleur system to an internally geared hub (Sturmey Archer S-RF3 3). However, it turns out that the dropouts of my frame are too short for the anti-rotation washers ...
- 1,528
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How to install a Rohloff Speedhub on a Surly Troll with rear facing horizontal fork ends
I have a Surly Troll with rear facing horizontal fork ends.
Is there a recommended way of installing a Rohloff Speedhub 14 on the Surly Troll? These answers mention tugnuts and washers, but perhaps ...
user31142
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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 ...
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Protecting Threads on a thru-axle dropout
My bike uses a thru axel and as I use an indoor trainer quite a bit, I remove the back wheel quite often. I'm concerned about the threads. If they get destroyed on the dropout nut, the manufacturer ...
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Can I use slider dropouts on my track dropouts?
My bike's dropout/fork-end basically look like this:
and I wonder if I could use something like this to convert it into a vertical dropout with a hanger and disc caliper mount:
I'll only be using ...
- 1,305
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smallest cog of cassette rubbing on seatstay
I built up a NOS late 90s steel frame with a similar era Campagnolo Chorus 9 speed groupset. Has gone well, except the stays/dropouts don't seem to quite like a 9 speed cassette. The second smallest ...
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How to find a frame given a geometry
In 2007, I bought my first bike: a Bianchi Boardwalk 2006. It was a great bike, but I didn't treat it well and it now needs about $300 worth of work.
I've been thinking that maybe I'd like to take ...
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Rear dropout nut constantly slipping
I've had this issue with my Kalkhoff Agattu (now out of warranty) basically since day one. The nut on the drive side of the rear dropout doesn't hold the wheel tightly enough, and it gets gradually ...
- 41
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Ritchey carbon MTB fork dropout wear
I was inspecting my carbon fork dropouts and I noticed the deformation of the edge on the outer side of the right dropout that makes me unhappy. I don't know what is the reason of this issue. Here are ...
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Filing front dropout
While carrying my road bike via plane one of my front dropouts has been bent slightly so I can't easily install or remove my front wheel. After I inspected the dropouts I found that one of them has ...
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How do you keep disc brakes on internal hubs aligned with the caliper?
I'm contemplating building up a new commuter bike, and I'd like internal gearing and disc brakes.
Internal gears require horizontal dropouts. Disc brake rotors however must be aligned with the caliper ...
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What type of bikes have a steel frame with 135mm rear dropouts spacing?
I'm looking for a bike frame made of steel with a 135mm rear dropouts spacing. The reason is that I might have to cold set at ~ 138mm for a project.
It could be a road bike, a mountain bike, or a ...
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How to adjust chain tension on a rohloff hub with semi-horizontal dropouts
Not sure my question makes sense, I do not know how to call these dropouts. And I do not know much about Rohloff hubs and chain tension requirements.
My problem : my chain is too loose and fall off ...
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How is chainstay length defined for frames with horizontal dropouts?
Just reading our own definition of Chainstay Length in the terminology index. It is written currently as the distance between the centre of the chainring and the centre of the rear cog.
This is ...
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Front wheel tilted fork alignment problem
I have this Dawes Discovery Twin and there seems to be a problem with one, or maybe both, of the quick release dropouts. The front wheel tilts a little to the right and rubs the brake shoe.
I already ...
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Why aren't vertical dropouts truly vertical?
Making some custom rear dropouts (vertical) for a project (nonstandard bike, they must be custom) and as I look to dropout examples, I notice that "vertical" dropouts never seem to have the slots ...
user36575
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What causes frames to break at the (rear) dropouts?
The drive-side dropout and rear axle have broken twice. It's an old-style freewheel, not a freehub+cassette. (I weigh around 100kg, and ride a lot, and have been touring on hilly, gravel roads, with ...
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Tire size / rear dropout incompatibility?
Recently my commuter bike (cannondale quick 5) was stolen, so I decided to get an old road bike off of craigslist - a '91 specialized sirrus triple. The guy I bought it from had bought it new, used ...
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Tire rubbing on frame
I have an old Sutter bicycle. I recently hit a curb which knocked my rear wheel out of alignment. When set all the way into the dropouts, the wheel touches the frame. I can fix this by putting the ...
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Building up a 1988 Schwinn Circuit frame with new parts
I’m very new to vintage road bikes, I’ve had an 1988 Schwinn Circuit frame laying around for years. Is it possible to build it up using newer components?
I understand that it originally came with an ...
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Are locknut forks and quick release forks the same and interchangeable?
I have a frame+fork that had old style locknuts on the wheels. I used those wheels for a project. Now I want to put wheels back onto this frame, but I only have quick release wheels in the same size.
...
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brand new fixie, different sized dropouts - send back?
i recently purchased a cheap fixie bike on ebay, brand new. it arrived today and looks great, but when i tried to attach the front wheel i realised that the right dropout is slightly (1mm) larger than ...
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Quick Release Rack with Horizontal Dropouts
I own a 1980s Panasonic (steel) road bike without eyelets for a rack or fenders, and I'd like to add a rack. The seat stays and chain stays on this bike are a bit thinner than I'd be comfortable to ...
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Can a (relative) beginner adjust spacing on a 501 cromo road frame?
Have acquired a cheap old Peugeot road bike from ebay; nice cromo frame, but it needs a new rear wheel and unfortunately I didn't check the dropout size before buying.
It has an OLD of ~120mm, but I ...
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Rear wheel rubs frame after tire change
I recently changed the rear tire and paid no attention to the original working state of the rear derailleur. After a miserable attempt at resembling, I lost what I now think was the Derailleur bolt ...
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135mm rear hub with QR on 130mm rear dropout spacing on older aluminum frame MTB
Problem: I had a rear wheel built to 135mm, but the frame is 130mm.
The frame is an older aluminum MTB frame. I assumed it was 135mm rear dropout spacing (being a mountain bike) when ordering the new ...
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How to straighten wheels on unbalanced forks dropout with quick release?
In mass consumer bicycles it is often the case that the forks dropouts are not perfectly aligned with each other; this results in the wheel not being aligned with respect the fork and being tilted to ...
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Vertical dropout chips for Civia Bryant
I have a Civia Bryant that has horizontal dropouts and an Alfine rear hub. The Bryant had interchangeable vertical/horizontal dropouts I didn’t get the vertical dropouts from the shop when I bought ...
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Can I replace a 135mm/5mm QR hub with a 10mm-diameter IGH?
I have a bike whose rear wheel has "quick-release 5 x 135mm". Will I be able to replace this rear hub with an in-gear hub that has "Length 135 mm, Axis diameter 10 mm" (this is the N380 hub)?
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Are dropout adjustment screws necessary on an indoor trainer?
I have a 2007(?) Cervelo P2C with horizontal rear dropouts, and I noticed recently that one of the dropout adjustment screws had bent. I plan to replace it, but until I do so is there any issue with ...
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Is it possible to mount a derailleur on this bike?
Is there a way to mount a derailleur on this bike?
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Wheel not straight in dropouts - can this cause brake rub?
My front wheel is not straight in the fork dropouts. It's been like this since I've bought the bike second hand a few years ago. See pictures below.
I've tried installing an identically sized wheel ...
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Can I upgrade a Hercules Dirtrider 26" with gears and a disk brake?
I found that dropouts are needed for derailleur setup & fork space>120mm...can I install any hanger or weld a dropout to the frame?...and also the fork end gap was around 105mm in wheel fitted ...
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