13
votes
0answers
137 views

Construction hints for a sociable dicycle?

I'm thinking of building a dicycle, specifically a sociable one like the picture below but pedal powered. Has anyone seen one in real life, or better yet, tried to build one? The broad design is ...
5
votes
0answers
122 views

Flashpoint FP80 / SRAM S80 - rear hub specifications?

I'm looking for the specs of a SRAM S80 rear wheel hub. I dearly wish to replace its 9/10-speed freehub body with one that can accomodate Shimano 11-cog casettes. SRAM S80 was a 80mm-profile aero ...
3
votes
0answers
113 views

Accurately replicating the resistance felt whilst riding via a resistance fan diy turbo trainer

If I were to build my own Lemond Revolution style turbo trainer (link below) could I use the air speed in meters/second^2 the rider is moving into as a good indicator of what type and size of fan to ...
3
votes
0answers
243 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 ...
3
votes
0answers
402 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
50 views

Is this issue possibly related to a defective damper? (Fox Evolution 2013)

I have a 2013 Fox Evolution fork on my bike (bought new by me) that is subject to recall due to some forks having defective dampers. I've been riding with a suspension fork since 1996, and I have ...
2
votes
0answers
47 views

Another stem diameter question (French steerer)

The steerer in the French bike I'm restoring has about .2mm less diameter than "regular" ones. With some grease, I manage to fit the "regular" cinelli stem I will use into the steerer. (Mine is the ...
2
votes
0answers
44 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 ...
2
votes
0answers
75 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 ...
2
votes
0answers
43 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: ...
2
votes
0answers
45 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?
2
votes
0answers
110 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. ...
2
votes
0answers
26 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 ...
2
votes
0answers
139 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. ...
2
votes
0answers
63 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 ...
2
votes
0answers
80 views

Can't find right headset adjustment

After a complete tear down and reassembly I can't seem to find the right tightness adjustment for my threadless fork / headset. If I loosen it to the point that the front fork turns freely, there's ...
2
votes
0answers
180 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. ...
2
votes
0answers
325 views

Serial numbers on bottom of a pedal crank housing from a 50s era Schwinn?

Can someone please explain what these three numbers mean on the pedal crank housing? I believe this to be the pedal crank housing from a 1956 Spitfire Ladies Bike. The Schwinn Serial reads M0D502 ...
2
votes
0answers
346 views

Does this abandoned 1976 Murray Alpine 26 I found have any significance or worth?

So earlier this week behind a local school I discovered something remarkable. Someone had put a old, wrecked women's bicycle in a pond. The wheels toast, the chain rings are useless, rust in many ...
1
vote
0answers
16 views

Repairing older Cycleops Mag trainer

I have an older cycleops Mag trainer which has started to make a clicking noise when the tire is engaged. Is it possible to repair this?
1
vote
0answers
68 views

Front drum (was disc) brake only works when going backwards (!)

I am restoring my old bike that hasn't been used for quite a while. The rear brake works fine, however, the front brake has an issue: It only brakes when the bicycle is going backwards, not forwards! ...
1
vote
0answers
23 views

early 1993 Trex 4200 aluminum frame

Im having a problem with my bottom bracket fitting my bearing cups and axle.I have 68mm tapperd thread Suntour XC pro 124mm axle .I tighten up the cups and the axle still has a lot of Play .SO I ...
1
vote
0answers
27 views

Can I run Aluminum Backed organic brake pads with Elixir Avid 5 Hydraulic system?

The old pads were steel. I bought the aluminum thinking they would disperse heat better but if it's going to cause a problem with the braking system I'll go back to steel at less than half the price. ...
1
vote
0answers
55 views

Shimano STX rear shifter, broken spring

I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). I am almost sure it has a broken spring, similar to that pictured in ...
1
vote
0answers
79 views

Need help identifying this vintage bike

I got it out an old farm shed in Mt Pleasant, South Australia. It has a Mansfield seat, and an Eadie coaster rear hub. All I can find out about the frame is that it says Blake on the front. I'm ...
1
vote
0answers
35 views

507 rims on a narrow frame

I bought my son a powerlite Jr cruiser. He would like to but a bigger tire on it. It currently has 520mm 24" wheels with 1" tires. Question is how wide is a 24" 507 bmx rim? I can't find specs ...
1
vote
0answers
44 views

Campagnolo Cambio Corsa

Does anyone make this sort of system and sell it today, or is my only option looking for someone selling theirs? I've googled whether similar systems are being made today but found nothing to my ...
1
vote
0answers
27 views

FD rub top and bottom of cassette big ring. How to fix?

I have set up a few front deraliuer in the past some using ultegra 6700, all of which ran without chain rub with the exception of the two expected cross chaining cogs. For some reason on my new bike ...
1
vote
0answers
56 views

2015 Fox RC2 160/36 (650b) fork - negative air pressure problem

As far as I can tell after speaking with 2 different Fox Service technicians, nobody seems to know why their forks have this well-known problem with negative air pressure increasing and migrating, and ...
1
vote
0answers
28 views

3- 5 gear special gearset?

So, a while back when I was rebuilding my vintage Shogun 6-speed, I realized that I only use 2- 3 gears on my commutes to and from school, crew, and other daily rides. The next day, I went to my local ...
1
vote
0answers
88 views

Giant Reign shock travel?

I've just bought a Fox Float X 2014 for my 2015 Giant Trance. It fits my Trance perfect but I may be upgrading to a 2015 Giant Reign. I was thinking would my shock fit onto a reign? The size of mine ...
1
vote
0answers
22 views

Cannondale H400 1993 derailleurs

I would need to replace my derailleurs and I would like to upgrade both front and back. Front is triple 30, 40, 50 and rear is 13 throught 30. Both are Shimano Altus A10 with Rapidfire Plus ...
1
vote
0answers
134 views

anyone know what kind of frame this is?

Can anyone identify this bike frame? I'm thinking it was stolen, painted, and is being sold on a website, so I was hoping to do a search on a stolen bike database. The original color looks to be ...
1
vote
0answers
66 views

How to Reattach Cable End for Road Drop Bar Brake Lever

I was installing new brakes and I pulled too hard on the lever and the cable end disconnected from the brake lever. I'm having trouble reattaching it because it can only be pulled out so far due to ...
1
vote
0answers
136 views

Shimano Nexus 7 speed IGH, high gears tight shift

I have the popular Shimano, Nexus 7 speed, internal gear hub. After removing the back wheel to replace the old tire, I've found that changing gears especially from 5 to 6 and 6 to 7 (especially the ...
1
vote
0answers
71 views

Which chainring/sprocket for use with a Sturmey-Archer X-RF8(W) IGH?

To increase the development range on a folding bike, I'd like to replace its three-speed SRAM IGH with a Sturmey-Archer X-RF8(W) IGH. The page says that it accepts a "20 to 23 or 25 teeth sprocket". ...
1
vote
0answers
102 views

Is a long, high angle stem safe to use with a carbon steerer?

I purchased a hardly used road bike someone else had built up for a deal a few weeks ago, and am a bit disappointed with the fit - it's fine for rides less than a couple hours, but too aggressive for ...
1
vote
0answers
90 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
36 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
30 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
244 views

Single speed conversion kit

I have an old Battaglin road bike from 1997 that I want to convert to a single speed. My issue is; what conversion kit to buy? The rear hub spline (not sure this is the correct term) has a 4x4 ...
1
vote
0answers
86 views

Bumpy ride. Is it the casing or the inner tube?

I pumped a new tube to about 80 psi (I missed that on the casing the recommended pressure is 100 psi). On the ride immediatly, I hit a very small kerb harder than I wished and after I noticed that my ...
1
vote
0answers
114 views

Wheels keep getting buckled

I have a touring bike with one side-bag on the back frame. On average I cycle 60 miles a week. How often do I need to buy new wheels? As of late I keep buckling both wheels. Can anyone please help ...
1
vote
0answers
34 views

I need information on a Gold cup bike with Mag wheels and square rear dropouts and frame.

I came across a little Red and white two tone with v handle bars. I'd like to know what year this bike came from and the value gold cups bikes go for.
1
vote
0answers
23 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
1k views

What are the rim size options for fat bikes?

I recently purchased a fat bike through the internet, and found to my surprise, that it had 3" tires, and not 4" tires. What are the common fat bike rim sizes, and tire sizes? I'm primarily ...
1
vote
0answers
384 views

Bmx serial number need identification

I have a old bmx serial no J3122595 What make n model is this frame please.tryed everything to find out to no avail
1
vote
0answers
145 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
85 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
128 views

Who has information on this Fondriest Bike we found? Any good?

Does anyone here know anything about this old Fondriest bike? Thanks!

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