Questions tagged [modification]
The modification tag has no usage guidance.
76 questions
5
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2
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Having a double chainring and 11-42 cassette on a GRX 11-speed: goat link/tanpan vs cage swap
For some niche cases, gravel riders would appreciate to use wider range cassettes (11-40, 11-42 or 11-46) on their double chainring gravel setup, which would allow have ranges close to 600% (vs 507% ...
- 24.6k
11
votes
6
answers
6k
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Can I safely drill a hole from the crown into the steerer in my carbon fork?
I want to install dynamo-powered USB charging apparatus inside my fork steerer. However, it's a carbon fork that has no exit at the crown for the dynamo wiring.
Is it safe to drill a small hole (at ...
- 36k
2
votes
2
answers
191
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How to increase my bike power (not enough space for bigger chainring)
I have a bike with full shimano deore M5100 1x11s. I want to increase the power of it. I tryed to increase the chainring size but my frame accept max 34t (not enough space for bigger). I would like to ...
- 5,182
6
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4
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1k
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Fat tires on a Rhoades Car quadricycle bike?
Ok, we have a Rhoades Car 4 wheel bike. It has a top, fenders and the works. It currently has 20 inch tires on it.
Years ago we contacted the company to upgrade to 26 inch tires. We never got around ...
- 30.5k
1
vote
1
answer
116
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How to eliminate flex in derailleur hanger plus Goat Link?
I have a Giant Trance. I have derailleur hanger with a Goat Link to accommodate a large cassette in the rear. Where can I get a custom made derailer hanger made to eliminate the flex with the goat ...
- 88.2k
10
votes
4
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40k
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Is it possible/sensible to add a suspension fork to an old mountain bike?
I have a ~1993 Giant mountain bike. It's not great, but I am a very new and casual rider.
The bike has a solid fork and it makes for the predictable rough trail ride. The trails are generally ...
- 1,403
25
votes
4
answers
2k
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What characterizes a future-proof ebike drive system?
Ebikes had their origins in modular drive systems that were assembled by enthusiasts and specialty companies choosing their own motors, batteries, battery controllers, motor controllers, and displays. ...
- 4,169
3
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1
answer
137
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Accomodating new wheel on old bicycle
I have a bicycle from the 1980s. Steel front fork. I am replacing the 27 1/4 wheels with 700cc. The new front wheel hub is 96mm wide between outer face of the bearing housings. The front fork has an ...
- 976
2
votes
2
answers
347
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Front fork brake posts removal
I wonder if the v brake pivot posts can be removed from the front fork, even though the posts have no flat side to undo them with a spanner?
Can these be removed with a pair of pliers or a grip of ...
- 131k
3
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2
answers
202
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Boardman Comp Hybrid 2012 - Suggestions for cheap way to get much lower gearing?
I am just about to buy a boardman comp 2012 hybrid bike which I want to use bikepacking. The gearing will be a little high as standard, it's a flat bar setup with Sram X5 9 speed shifters and rear ...
- 15.8k
12
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6
answers
4k
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Is it safe to drill a cable exit hole in a seatpost?
I want to route a dynamo light wire internally from the front of the frame to the rear light. The wire enters the frame at the top of the down tube, runs around the bottom bracket, and up the seat ...
CommunityBot
- 1
2
votes
2
answers
889
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Modify/hack rear derailleur cage size
I've listened that it is possible to modify the cage size of a rear derailleur.
For instance reducing a long (SGS) to a medium (GS) or short (SS) cage size.
Is it possible on all brands?
Just shimano?
...
- 3,906
3
votes
2
answers
771
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Is there a straightforward way to widen a rear rack
I am trying to widen a 15cm wide rear rack to better support a rear bag. The current rack is part of the battery holder and so cannot be simply swapped for a wider rack.
- 6,747
2
votes
1
answer
169
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Mount 29'' wheels on Cube Reaction TM 2018
So, I own a Cube Reaction TM 2018 with 27,5'' wheels and I would love to use 29'' wheels to upgrade my bike.
But I can't find any information, if 29'' wheels would fit in the frame or the fork.
I ...
- 24.6k
5
votes
1
answer
321
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Long term durability of surface coatings for frames and parts
I'm trying to determine the best coating or combination of coatings for bicycles that I'm refurbishing. Along with other elements of making these bikes weatherproof (full chaincases, fenders, water ...
- 36k
3
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3
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2k
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Can I put a suspension fork on a hybrid bike like the Kona Dew?
Would it be worth while to put a suspension fork on a Kona? What travel amount and stanchion diameter would be appropriate?
Here are links to the model I'm considering:
https://konaworld.com/dew_plus....
- 18.5k
2
votes
2
answers
194
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Cutting a slot in a quil stem
Just curious to know, is it possible and safe to cut this slotted part of the stem and make a new slot slot on top?
I need a shorter stem for another project.
- 131k
4
votes
2
answers
2k
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Adding a second chainring to a 1X
I have a 1X gravel bike with an 11-46 cassette and a 40T chainring. This gearing works for most of my riding but there are times when I'm doing some serious climbing that it would great to have one or ...
- 151
2
votes
2
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132
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Is it feasible to jerryrig a motorbike saddlebag as a bike pannier?
There’s a used rear bike rack and a used motorbike saddle bag people are selling in my area. I already set up a time and date to pick both up before I realized that this bag was for motorbikes, but I ...
- 131k
0
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1
answer
119
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Can I put a Shimano 1x12 group set on my benotto xc 4000
I just want to know if there would be any special modifications in order to make it work?
- 6,284
0
votes
1
answer
64
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Nut on back axle
I have a motor kit for my beach cruiser, but I can't take the brake lever off to install the sprocket on the left side of the axle. The wheel is off the bike, but I can't budge the nut holding the ...
- 88.2k
2
votes
1
answer
2k
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increase stem height of giant tcr advanced 2
Is it possible to increase stem height of the Giant TCR advanced 2? I want to make the bike less aggressive so I don't have to bend down so much don't care about being aero.
https://www.giant-...
- 131k
4
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4
answers
1k
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Shave 1.85mm off to get an 11s road cassette onto a 10s hub
Does anyone have experience removing material to get an 11s road cassette onto a 10s hub?
As per the hub standards, the difference between the width of a 10s and 11s freehub body is 1.85mm. The back ...
- 193
0
votes
1
answer
118
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How can I shorten the frame of a "Duchie shopper" bike?
The cycle is a "Duchie shopper". The bike is to big for my wife. Is it possible to shorten it for her?
She is 5 ft (152 cm) tall. The bike has a 27 inch wheels. I want to shorten it by ...
- 131k
-1
votes
2
answers
108
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Fitting ebike kit, changing rim diameter?
I have a 27.5 inch mountain bike, am wondering if I bought a 26 inch ebike kit would it work with the disc brakes because of the size difference? It's for the rear wheel.
- 131k
0
votes
1
answer
333
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Slamming my stem considerations
I want to try a slammed stem but don't want to cut the steerer tube. Do I have to?
- 1,403
4
votes
6
answers
3k
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Croozer bike trailer optimalisation for less tire detoriation
We love to travel by bike. Last summer we did a trip of about 650km on mostly asphalted roads (with quite some medium long climbs and descends) with our son in a bike trailer (type Croozer, see ...
6
votes
1
answer
573
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I want a bolt on crank, but dunno what terminology to use to find one
I want to place a crank on a bike at a different location than the one the bike is originally located.
This is similar to what i want to do, this is an addon crank for a smaller person to pedal with a ...
- 36k
8
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2
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5k
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Can and should one install rivnuts into an aluminium frame?
I have an aluminium frame, and would like to add another bottle cage. But there are no mounts below the downtube. I've installed rivnuts into a steel frame before, which worked well.
Can I install ...
- 595
-1
votes
3
answers
428
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Sidecar / pillion adaptable for standard push bike
I'm looking for an add-on sidecar / pillion to add on to an existing bike.
This is so that I can transport someone around who doesn't want to walk too far as well as helping me keep fit.
Reseach
...
- 62.4k
3
votes
2
answers
150
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Sunglasses fogging on cool bright mornings - can I improve airflow?
My favourite riding sunglasses are my Bollé Mamba II safety sunglasses - they're light and wrap around properly while being by far the most comfortable ones I've found. They're also cheap.
There ...
- 62.4k
11
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4
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4k
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To Cold Set or Not To Cold Set?
I have a Trek 620 (Reynolds 531 lugged steel frame) from the mid-80s the rear dropouts are spaced at 126 mm. I'd like to be able to run an 8- or 9-speed cassette and I was wondering about the issues ...
- 131k
2
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3
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2k
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How can I DIY a smaller Anything Cage/Versacage, or a mini bottle cage
In my perpetual quest to carry ever more stuff without panniers, I'd like to fit a second bottle cage under the downtube, for small bottles (e.g. 200 ml of stove fuel). There's space for ...
- 538
4
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3
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22k
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How can I use a bent seatpost to move my cruiser's seat farther back?
I realize this isn't everyone's taste, but indulge me for a moment...
I just bought a beater cruiser bike on craigslist, and I'm trying to move the seat farther towards the rear of the bike for a ...
6
votes
1
answer
695
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Modify a front derailleur cage to allow for non-round chainrings like Biopace or Rotor?
I am repairing my road bike after a mishap where it swallowed the rear derailleur around the cassette and into the front derailleur. As part of the rebuild, I'm swapping out the badly worn old ...
- 131k
11
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3
answers
13k
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What is the impact of changing to a smaller chainring?
My road bike has a Campagnolo Veloce gearset. It's running 53 and 39 tooth chainrings. I have a 13-25 10sp cassette.
I find that a lot of the time when I'm cruising, I'm on the big chainring and in ...
CommunityBot
- 1
1
vote
1
answer
2k
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Bought a Vintage Bianchi 1985 road racer, came with Shimano 600, can I easily turn it into index shifting?
As my title says bought a:
Bianchi 1985 vintage in almost mint condition
Shimano 600, 12 speed (2x6) with freewheel, friction shifters
I'd like to turn it into an index shifter.
Do I just swap out ...
- 8,379
-3
votes
3
answers
464
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Which bicycle is the most hollow? [closed]
For the purpose of carrying water, gas, or whatever.
What bike has the most volume in the hollow chambers of the bicycle frame?
1920's De Dion Bouton Propeller Bicycle
https://www.carandclassic.co....
- 1
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4
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6k
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Is it possible to convert a suspension fork to rigid by drilling it?
I have been given a Falcon MTB. I've sorted out all its troubles but the front suspension fork is worn.
When using the front brake the slack in the tubes make them judder. Is there anyway I can "...
- 30.8k
1
vote
3
answers
125
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Budget brands for gears in India [closed]
A total newbie here. I'm planning to upgrade a single speed to geared one road/tour bike. I haven't decided the gear system though. I guess I'll decide that upon availability of the parts.
Well, I ...
- 131k
4
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1
answer
446
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Identifying small, moped-like bike
I found a very cool and bizarre-looking bike in Berlin (in Germany) and was very confused about what it in fact "is"; Has anyone got an idea? — To me, it almost looks like some sort of ...
- 5,708
5
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3
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984
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What's this part of the bike, and is it safe to alter it?
The video shows someone installing a gps bike tracker, however there is not much room in the top of the head tube, so he hammers down what's already in there in order to make room for the tracker.
In ...
9
votes
3
answers
2k
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Modification for cycling with one functioning hand
My dad loves cycling, however he has dystonia which reduces control of the muscles in his hands. He can still cycle, however this becomes very painful after a moderate period of time due to gripping ...
- 1,779
1
vote
1
answer
223
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Modifying SKS Race Blade Long for solid axle hubs
I have a set of SKS Race Blade Long fenders. They have quick release attachments that fit around QR skewers. Unfortunately, I'd like to set these fenders up on my single speed commuter which has track ...
- 88.2k
2
votes
1
answer
646
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Can regular bike forks be modified to allow front drivetrain setup?
Can regular bike forks be modified to allow front drivetrain setup?
Some bikes have front drivetrains instead rear drivetrains. The problem is that bike stores don't seem to carry forks that have a ...
- 13k
2
votes
1
answer
266
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Bike modifications against side winds
I am cycling on the highway these days, dealing with tremor of my handlebars or a slight loss of control resulting from either oncoming vehicles or the high winds.
I'm wondering how pro cyclists ...
- 131k
1
vote
1
answer
1k
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Convert city bike to road bike [duplicate]
I have a city or normal bike and I want to ask, that with the necessary modification except the frame, is possible to convert this bike in a road bike?
- 13k
1
vote
1
answer
199
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Durability of Seat and Chain Stays on steel frame touring bike
I've been toying with the idea of mounting a dynamo on my REI touring bike. Model is ADV1.1 and it has a steel frame.
Dynamo attaches by a mechanism that clamps onto a seat stay and tightens with two ...
- 131k
1
vote
3
answers
4k
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Relation formula between fork length change to headtube angle and bottom bracket height
As we know, changing the fork length will change bike geometry a bit. For example, increasing fork travel by 10 cm will make the headangle slacker and raise the bottom bracket. I consider to increase ...
- 15.8k
5
votes
1
answer
3k
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Derailleur On A Single Speed
Earlier today, I saw this bike with an absolutely bizarre drive-train. It looks like a single speed, but it has a derailleur on attached to it. The derailleur does not move horizontally, but only ...
- 22.5k