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3 votes
1 answer
316 views

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% ...
Rеnаud's user avatar
  • 20.6k
1 vote
1 answer
101 views

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 ...
brian gary's user avatar
25 votes
4 answers
2k views

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. ...
Nathan Knutson's user avatar
2 votes
2 answers
282 views

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 ...
D D's user avatar
  • 17
3 votes
1 answer
125 views

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 ...
caloundra's user avatar
3 votes
2 answers
184 views

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 ...
Andy Bbop's user avatar
12 votes
6 answers
4k views

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 ...
Will Vousden's user avatar
  • 3,981
3 votes
2 answers
601 views

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.
Robintheres's user avatar
2 votes
2 answers
701 views

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? ...
Daniel Perez's user avatar
2 votes
1 answer
159 views

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 ...
Obl Tobl's user avatar
  • 809
5 votes
1 answer
254 views

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 ...
cyanrarroll's user avatar
3 votes
3 answers
2k views

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....
Zool's user avatar
  • 41
2 votes
2 answers
189 views

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.
Rishi Ganasen's user avatar
6 votes
4 answers
1k views

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 ...
RhoadesCar's user avatar
4 votes
2 answers
1k views

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 ...
Markb's user avatar
  • 151
2 votes
2 answers
118 views

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 ...
Red's user avatar
  • 21
0 votes
1 answer
63 views

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 ...
Alex J Alexander's user avatar
2 votes
1 answer
1k views

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-...
Lightsout's user avatar
  • 1,737
0 votes
1 answer
112 views

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?
Mark Phillips's user avatar
9 votes
5 answers
6k views

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 ...
Will Vousden's user avatar
  • 3,981
4 votes
4 answers
1k views

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 ...
cohomonoid's user avatar
0 votes
1 answer
116 views

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 ...
David Packham's user avatar
-1 votes
2 answers
98 views

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.
Michael Danzinger's user avatar
0 votes
1 answer
297 views

Slamming my stem considerations

I want to try a slammed stem but don't want to cut the steerer tube. Do I have to?
Charlie's user avatar
  • 31
6 votes
1 answer
561 views

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 ...
Eric Huelin's user avatar
8 votes
2 answers
5k views

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 ...
Criggie's user avatar
  • 125k
-1 votes
3 answers
377 views

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 ...
therobyouknow's user avatar
3 votes
2 answers
146 views

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 ...
Chris H's user avatar
  • 59.6k
2 votes
3 answers
1k views

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 ...
Chris H's user avatar
  • 59.6k
6 votes
1 answer
673 views

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 ...
Criggie's user avatar
  • 125k
1 vote
1 answer
1k views

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 ...
Jessie-James's user avatar
5 votes
4 answers
6k views

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 "...
Harry's user avatar
  • 83
-3 votes
3 answers
461 views

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....
Muze's user avatar
  • 1
1 vote
3 answers
123 views

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 ...
Krish's user avatar
  • 11
9 votes
3 answers
2k views

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 ...
Laurie's user avatar
  • 193
1 vote
1 answer
217 views

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 ...
Zian's user avatar
  • 163
2 votes
1 answer
638 views

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 ...
Brian's user avatar
  • 1,043
2 votes
1 answer
257 views

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 ...
aitía's user avatar
  • 191
1 vote
1 answer
1k views

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?
Alpfhons's user avatar
1 vote
1 answer
195 views

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 ...
fedora's user avatar
  • 225
1 vote
3 answers
4k views

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 ...
J-unior's user avatar
  • 1,793
5 votes
1 answer
2k views

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 ...
AVA's user avatar
  • 219
2 votes
1 answer
272 views

Road bike commuting

I have a road bike (Orbea Aqua T23) on which many of the components are coming to the end of their lives. As such I'm replacing most of them, and was wondering what people thought were good mods to ...
Lex Sandeford's user avatar
5 votes
4 answers
878 views

Downgearing with a road triple

My mother is trying to get back on her bike after years of knee problems + surgery, which so far has gone ok, but she has had some trouble with climbing hills. She's thinking that she should try to ...
T.C. Proctor's user avatar
0 votes
1 answer
2k views

Finding the right size wheel for a electric bike kit [closed]

I want to convert my trek cross bike to a electric bike. I have 700c rear tire. The kits wheels seem to come in inches. What should I do?
Sandy B's user avatar
  • 11
1 vote
1 answer
2k views

Pedal assist sensor possible for front wheel motor on ebike?

I'm looking into converting my current bike into e-bike. I run with IGH, so the only place for the motor is the front wheel. Is it possible to have pedal assist sensor (PAS) with this setup? I.e. no ...
Alex's user avatar
  • 144
4 votes
1 answer
434 views

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 ...
errantlinguist's user avatar
-1 votes
1 answer
57 views

Bike site and links [closed]

Links to sites with a new or unique design is what I am looking for. Post the site with most links for bike related information.
russ's user avatar
  • 17
5 votes
2 answers
3k views

Is it possible to increase maximum seatpost insertion length by filing down a seat tube bottle cage mount boss?

I have an aluminum MTB hardtail frame with a pair of standard bottle cage holes on the seat tube. I want to insert a seatpost fairly deep into the frame sometimes, so that the saddle stays low. The ...
Grigory Rechistov's user avatar
11 votes
2 answers
4k views

Can I modify a slightly too big bike?

A couple of months ago I went for a professional bike fit on a jig. They were struggling to find a bike to fit me perfectly (5ft1 female). They ended up ordering me a cyclocross bike. The bike has ...
Beccah's user avatar
  • 113