4
votes
0answers
80 views

Should flywheels on stationary trainers be replaced periodically to avoid catastrophic failures caused by fatigue?

I have owned a Computrainer stationary trainer for 20 years and recently had the flywheel shatter, sending shrapnel through the walls and ceiling of my basement, as well as into my hamstring. Should ...
4
votes
0answers
146 views

Bottle dynamo wiring a headlight and taillight on 1980s bike

I'm restoring a 1980 DBS Winner bicycle, and I'm having trouble wiring the dynamo to the headlight and taillight. As a disclaimer, I know very little about electricity and wiring. The dynamo has two ...
4
votes
0answers
93 views

Who recognises this titanium frame?

I bought this titanium frame some time ago. No markings, only this serialnumber on the bottombracket. The 84 propably stands for 1984 as the bike was fitted with Campy's 50th Anniversary gruppo. BB is ...
3
votes
0answers
110 views

Shimano 105 ST-5500 gear sensor mechanism

I have a pair of Shimano 105 levers and would like to know what sort of mechanism is inside the shifter to track what gear it's on? Is it a potentiometer? Or maybe small switches? Also, does anyone ...
3
votes
0answers
300 views

BB92 (Shimano bottom bracket) with SRAM 30mm crankshaft (X01 or XX1 BB30)?

The frame that I want to build has BB92 bottom bracket hole. The drivetrain I want to use is 1x11 SRAM XX1 or X01 with 30mm crankshaft (BB30)(edit: also available GXP). There are ways to fit it - ...
3
votes
0answers
102 views

Shimano Hydraulic disc brakes- Lever compatibility

I am looking for practical advice on compatibility between various Shimano hydraulic disc brakes, especially the lever assembly. Currently I have two separate sets, one M446 Left lever, attached to a ...
3
votes
0answers
280 views

sram grip shifter to be fox CTD shock remote lever

the FOX shock CTD remote is a nice shock, but the remote is bulky, even the new 2014 version, still uneasy to change between CTD. I come across this article ...
2
votes
0answers
67 views

Troubleshooting Noise from Avid BB-7 Road Disc Brakes

I'm trying to track down a dragging sound from some Avid BB-7 brakes on a Kona Sutra. The hub is a Shimano Alfine DH-S501 dynamo hub with an SM-RT82 Centerlock disc. The noise sounds like a dragging ...
2
votes
0answers
81 views

which multi-speed hub should I upgrade my trek district to

So my rear freewheel hub broke on my single speed belt driven (no metal chain) trek district. Since I have to replace the rear hub, I'm thinking of replacing the rear hub with an internally geared ...
2
votes
0answers
43 views

Are there any Male to Female DI2 wires / exetensions?

I know you can use a junction port (ie: SM-JC41 Internal Junction Box B) for this, but are there any Male to Female extension cables? Root Cause: R600 to 5 port junction for a TT setup near the base ...
2
votes
0answers
68 views

"Le vélo de Tati” - Jacques Tati by Robert Doisneau

Does anyone know where i can purchase this iconic poster? I've searched the most obvious websites. thanks
2
votes
0answers
81 views

What's the best way to fix carbon to titanium?

I'm building (experimenting if you wish) something out of the old bike parts and I need to fix two parts together one titanium and carbon. Basically the parts are two tubes one made of carbon of a ...
2
votes
0answers
185 views

My BionX system won't work in assistance mode, and makes a weird noise

I've had to remove and reinstall my rear wheel because of a flat, and now the BionX system has stopped working correctly. When I turn it on, it works fine, and the regenerative breaking works fine. A ...
2
votes
0answers
135 views

Mystery item broken on old Dawes. Help!

I was adjusting rear brakes last night and this little thing snapped in half (see image [right]). The linear indent holds my brake cable in place and a 5mm bolt holds this in place. I guess I need to ...
2
votes
0answers
342 views

Change the angle of the arc of downtube / stem shifter lever to make it an alternative thumb shifter?

I want to mount the following SunRace clamp-on shifter set horizontally as a "thumb" shifter on a straight MTB handlebar (22.2mm). I will remove the left lever and only use the right with the clamp. ...
2
votes
0answers
381 views

My left STI shifter has 5 positions for a double crankset?

I'm in the process of installing my Shimano Tiagra left shifter for the front derailleur on my double crank and I'm a bit confused, the indicator shows it has 5 positions for a crank with only 2 ...
1
vote
0answers
36 views

How to route shifter cables along frame to a Rohloff external gear mech?

I am currently converting my Rohloff's gear mech from the internal to external version, and I’d like to route the shifter cables along the downtube and chainstay. However, I’m not sure how to route ...
1
vote
0answers
26 views

Can you identify this Sachs hub?

I recently picked this up along with a couple of old wheels. I don't know it's age or history. I've only got as far as identifying it as a Sachs. There are no other markings apart from the logo ...
1
vote
0answers
77 views

How do I repair a broken chain on my old BMX bike?

I have an old bmx and my chain broke yesterday. I bought a new chain from WalMart. It is 300 links for 1 speed but I don't know what is the bmx speed (gear); it was rusted but I fixed it up. I left ...
1
vote
0answers
79 views

Help me ID this bike

I purchased an old bike and I can't quite find out which brand and model it is. I know it has an Aluminium Kinesis frame , which is pretty light . The bike weights about 9,5kg with the bottle holders ...
1
vote
0answers
62 views

Am I unscrewing my pump incorrectly?

I just bought a new mini pump (with a foot-stand and pressure gauge to get up to about 100psi), however, in order to get a good seal you have to screw the pump-head onto the valve. The issue is, ...
1
vote
0answers
39 views

Replacement of cup that holds bearings on huffy beach cruiser

I have a 1980s huffy good vibrations beach cruiser which has been in parts for a little while. I was able to find and put back together everything except I am missing one of the metal cups which are ...
1
vote
0answers
37 views

takhion-esque track frame identification!

I thinking on buying this very lightweight track frame that is very similar in looks to those beautiful takhion pursuit frames from the urss 80's. I was told that brazilian cycling federation bought ...
1
vote
0answers
68 views

Bottom Bracket Compatability Question

Good afternoon all! In previous questions, I've mentioned that I intend to rebuild my 2000 Trek 7700 Multitrack. Well, I'm beginning by replacing the bottom bracket. According to the spec sheet I ...
1
vote
0answers
70 views

Unable to find correct tire size

Recently, I had a problem with the back rim (the axis) and the guy who repaired just replaced the rim. After few weeks I tried to repair a flat tire, but I found myself unable to remove the tire to ...
1
vote
0answers
33 views

Swain Power-HR relation

I am trying to understand how to use Swain HR to Power equation in my case. Here is a calculator where one can vary the inputs and see the various outputs based based on the equation: ...
1
vote
0answers
114 views

Preload Adjuster Use on SR Suntour XCM

I've got an SR Suntour XCM HLO 27.5" 100mm travel that comes with my bike. It has preload adjuster on the left and lock on the right. What I wonder is how to properly adjust the fork ...
1
vote
0answers
89 views

Replacing crankset on early-'70s Motobecane 10-speed

I need a replacement crankset for my Motobecane Nomade 10-speed road bike (early '70s model), but am not quite sure what I even have at the moment and, once I know what I can use to replace it with, I ...
1
vote
0answers
81 views

30's-40's bike, make and model

hello, Any info on this bicycle, it make, model and possible year. The young man was born in 1931
1
vote
0answers
34 views

Buying Brakes for custom kick scooter with 12" diameter bmx wheels

I need to buy brakes for a custom kick scooter. The steel tubing of the entire frame is 1" in diameter. How do I know what size brakes to buy?
1
vote
0answers
33 views

Fork leaking oil?

After finishing my last two rides on my second hand bought bike, I've noticed both stanchions appear as if they are leaking oil Could it be just WD residues or excess suspension oil?
1
vote
0answers
99 views

Sachs- Huret derailleur (re)installation

Sachs - Huret derailleur installation So the learning curve continues on the '85 Peugeot P-16. The main lessons are to take pictures and time getting each thing done. I have the rear derailleur ...
1
vote
0answers
62 views

Specialized Brain problem

I have been searching for a while regarding a problem with my Specialized Brain. Here is the story.. I bought a 2008 Specialized Stumpjumper Expert 2nd hand and immediately noticed air in the shock. ...
1
vote
0answers
24 views

Fork damper circuit reconditioning

I have a rockshox Dart II from 2007. I have recently rebuilt it for the first time in 9 years as it had basically locked up, and not so surprisingly given its neglectful treatment, its still not ...
1
vote
0answers
95 views

Help identifying MTB frame

Apologies making ANOTHER one of these threads...Anyhows: Bought a bike third hand, frame has been stripped and painted. Trying to find make & model so I can get some offset bushings for the shock. ...
1
vote
0answers
83 views

What is the name of the manufacturer of this Chinese made bicycle?

I have a Trac (no 'k') Forever 200 bicycle from China (complete with Chinese writing on it). Any idea who the manufacturer is? Is this bike common in China? I can't find anything online about them. ...
1
vote
0answers
64 views

Is it worth completely replacing my track wheelset?

I own and commute on a 2009 KHS Flite100, bought used. Since purchasing it, I have spent around $250 getting it up to scratch, with new tires, pedals, saddle, and other small but worthwhile upgrades. ...
1
vote
0answers
41 views

Motobecane Sprint Retro Fixie

Question for rebicycling a Motobecane Sprint Blue. I have a desire to rebicycle this Motobecane Sprint into a semi retro style with the orginal theme. In short i would like to purchase the same ...
1
vote
0answers
34 views

Missing valve part from Marzocchi MX Pro 2003- how does it work?

I'm trying to figure out if I can make a replacement part for an old pair of Marzocchi MX Pro 2003 forks. Its part of the rebound damping rod and is the metal bit in this photo on the top where the ...
1
vote
0answers
44 views

Wheel building for n360 + disc brakes on H Plus Son 700c, 36h

I'm working on building a couple of wheels for a road/commuter bike. This is my first wheel building endeavor. I have: 2 H Plus Son 700c, 36 hole wheels A Nuvinci n360, 2012 model A set of TRP Hylex ...
1
vote
0answers
52 views

Columba folder w/mountain 10sp cassette & Sram X7 derailleur

On my bike the derailleur mounting bracket (hanger) is held by the hub axle and therefore fills some of the dropout slot on one side and pushes the axle lower in the slot on that side. So the axle is ...
1
vote
0answers
24 views

Punctured fork seal

I accidentally punctured (very small hole) the dust seal on my Fox Evolution CTD fork. Obviously the seals capacity to prevent the dirt/dust/etc. from entering the forks has been compromised. Will any ...
1
vote
0answers
122 views

Size advice needed for Revolution Country Traveller touring bike

I'm about to by my first touring bike. I've got a very tight budget so I will probably order a Revolution Country Traveller from Edinburgh bicycle cooperation as it looks like it will suit my needs. ...
1
vote
0answers
59 views

Which mountain bike resort has more built up trails for Enduro and DH: Morillon or Alpe D'Huez?

Looking for one that has a higher level of trail maintenance and conditions. I am familiar with Whistler, BC. Whistler bike park is a World Class terrain park, where employees place tons of time and ...
1
vote
0answers
21 views

What is the length of the Hope XC internal spacer from freehub to bearing?

I think I have a worn spacer as it has ragged edges. Does anyone have the length of this spacer when new?
1
vote
0answers
86 views

Which standalone head units would work with Tacx i.Flow T2270?

I'd like to be able to use my Tacx i.Flow T2270 trainer without a PC. Apart from the T2202, which current or older standalone head units would be compatible? Would T1682 work? What about head units ...
1
vote
0answers
73 views

What is neuromuscular endurance in the world of bicycling?

I read the term neuromuscular endurance perhaps something related to having your brain not accustomed to high speed pedalling. I'm curious as it is related to bicycling cadence and I'm working on ...
1
vote
0answers
190 views

Schwinn Vestige no longer lights up; why not?

I have the Schwinn Vestige and a very long, bumpy, dirt/gravel driveway. A few weeks ago, we rode downtown and the frame lit up amazing, as it should. On the way home, it was not lit up. Hmm. After ...
1
vote
0answers
195 views

Lowrider style bent forks techniques

Would a 24 inch bent fork fit on a 20 inch frame? Is there even a 24 inch fork? Would a 26 inch fit? Also if it doesn't fit in could I just add to the 20 inch - would you be able to extend it making ...
1
vote
0answers
50 views

Sprinter Universal Bike

A friend has given to me a bike called the marking say " Sprinter universal " which looks pretty old. Can anyone give me any information on it please ?

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