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306 questions with no upvoted or accepted answers
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10
votes
0answers
177 views

Ivanhoe ladies with wooden rims, wooden rear fender, wooden chain guard

Attic find, any thought as to age, options not on a stock bike, value range.
8
votes
0answers
131 views

Cut off tubeless plug head?

I use tubeless tires ranging from 30 to 40mm in width. When I puncture and the sealant doesn't cut it, I plug the hole with a Dynaplug. On longer rides, I carry a spare tube (or two) just in case. It ...
7
votes
1answer
131 views

How to deal with fog, condensing on the outside of glasses?

I had a particularly foggy commute both ways today. I was having to wipe the glasses lenses every 10-20 seconds as traffic permitted to maintain some semblance of visibility. I already wear a cap ...
6
votes
0answers
174 views

Aero bars are a pain in the neck - are there strengthening exercises?

I've got a set of aero bars on my tourer, and now I've got the hang of them I rather like them, especially when solo and into headwinds or trying to put some distance behind me on a long straight. A ...
5
votes
1answer
106 views

What is this Allen bolt on my novatech freehub, and what does it do?

I've been servicing the novatech freehub on my Kona cyclo-cross bike after a particularly filthy ride. When removing the freehub I noticed this tiny Allen bolt by the inner pawls of the freehub. When ...
5
votes
1answer
153 views

Sealed bearings characteristics for road bike wheels?

I have fulcrum racing quattro road bike wheels. I'm changing my bearings quite often since I noticed that in general they last around 5000 km (over winter). I'm usualy using SKF 61903 bearings from ...
5
votes
0answers
141 views

Would like to identify a late 80s/early 90s lo-pro bicycle's manufacturer and tube type

I just purchased this bike locally in Southern California and thought it would be straightforward to identify but I've asked around and no one seems to know. The specs are: Lugged steel (fork crown ...
5
votes
0answers
128 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: http://www....
4
votes
0answers
46 views

Is Shimano the only company with a sealed ratchet mechanism in their freehubs?

Most freehub designs have exposed rachets when the freehub cassette body and hub are disassembled. So much care must be taken to keep the mechanism clean and free from dirt an dust. Shimano's freehub ...
4
votes
0answers
541 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. ...
3
votes
1answer
121 views

Will putting an e-bike chain on a “traditional” road bike give more mileage?

I was browsing through a webshop for some replacement parts and in the "chains" section I came across "e-bike chains" - claimed to be stronger than traditional chains. Since 11-speed chains are ...
3
votes
0answers
34 views

SRAM i3 coaster brake only activating after multiple turns backwards

My son's bike has a SRAM i3 internal gear + coaster brake hub. It has recently started sometimes only activating the coaster brake after backpedalling a good one or two full revolutions. When in this ...
3
votes
0answers
77 views

Mavic Cosmic SLS - carbon separation

Some aero’ wheels are an aluminium rim with a carbon fibre shroud. On a Mavic Cosmic SLS rear wheel, I’ve found that the carbon fibre shroud is separating from the aluminium rim. Just visible in the ...
3
votes
1answer
80 views

Pulley for 10 Gear Derailleur for 9 Gear Chain

I am using a 10 gear XTR derailleur on a 9 gear cassette with a 9 gear chain and the tension pulley of the derailleur looks like needing replacement (despite teeth being very sharp it seems to work OK ...
3
votes
0answers
56 views

How to solve issue with self-unscrewing Praxis Convo BB for Shimano?

I am looking to solve the issue with Praxis Convo BB which unscrews by itself during the ride. What would be the best solution? On my second ride on a Specialized Venge Pro 2019, I noticed that my ...
3
votes
0answers
204 views

Please Help me identify my Bike Logo

Hello can someone help me identify my bike Frame?. It has this weird Logo and a Serial number of : "2948" . It has Suntour Dropouts likely NJS. Thanks!
3
votes
0answers
79 views

Pannier Bags for Burley Kazoo

I have a burley kazoo trail-a-bike, which my five year-old and I are really enjoying. When not trailing my 5yo, I can easily put my Arkel pack onto the burley rack, but its attachment points don't ...
3
votes
0answers
795 views

7 speed cassette on a direct drive trainer from freewheel bike

In 2011, I bought a cheap bike from Walmart. It's done fine by me on the ride or two I take per year, but I'm looking to enhance my home gym a bit and was looking to grab a direct drive trainer. The ...
3
votes
0answers
340 views

Help identify this loop frame bike

I'm trying to find out more information about this old loop frame bike I'm planning to refurbish. I haven't found any other marks that may be identifying, if there's anything else I can take a photo ...
3
votes
0answers
4k views

Shimano STX rear shifter, broken spring

I have to repair a Shimano STX shifter 7 speed (from a Raleigh MT200 bike from 1995). It has a broken spring, and I am almost sure that is the only thing to be repaired. It is similar to that ...
3
votes
0answers
296 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 ...
3
votes
0answers
671 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. ...
3
votes
1answer
809 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
25 views

Determining bottom bracket type

I'm fixing up an old bike I bought in Belgium. Not sure about the exact brand/year. The bottom bracket axle is branded "Flandria". It's a cottered axle. I want to replace this with a square taper ...
2
votes
1answer
58 views

How to remove a stuck SRAM AXS (Dub) crankset

I wanted to remove my relatively new SRAM RED eTap AXS crankset from my bike and I'm having problems trying to loosen (meaning: being unable to) the main 8mm hex bolt on the drive side, the step shown ...
2
votes
0answers
103 views

Can anyone give me some information on this Peugeot frame I bought this weekend?

I've been looking through old Peugeot brochures and searched the numbers on the frame but I cant find any pictures of any Peugeot bikes that look like this one. The chrome section with the flags of ...
2
votes
2answers
163 views

Is the Shimano UN55 bottom bracket in 68x122.5 and 68x127.5 sizes JIS square taper?

On one online sales site there's a drop-down widget showing various sizes of the Shimano UN55. "JIS spindle" appears as a bullet-point next to someone of the size choices but not all of them, hence ...
2
votes
0answers
45 views

What's the type of polymer material used in friction bushings in Sram rear derailleurs clutches?

The friction bushing of an (older) Sram rear derailleur clutch is shown below. What type of polymer material are these made out of? I'm also interested to know what friction materials are used in the ...
2
votes
0answers
92 views

Gearing preferences of men vs. women on road bikes

Is there evidence that men and women prefer the same or different gearing when riding a road bike? In other words, in the same conditions, would both men and women generally ride in the same gear or ...
2
votes
0answers
92 views

5 arm cranksets versus 4. Which is better and why?

I'm looking to buy a Sora triple crankset. Shimano make two types one has 5 arms and the other only has 4 arms. Which should I get and why would that be a better choice? I'm a slow-ish rider. I'm 50 ...
2
votes
0answers
136 views

SRAM eTap rear derailleur chain drop issue

I’m having an issue with my chain falling off the lower pulley wheel when (1) I hit a significant bump or (2) shift from large ring to small ring. But only in cogs 6, 7, 8. Any suggestions? I’ve ...
2
votes
0answers
115 views

What is the origin country of the bicycle brand called Longhorn?

I recently brought a hybrid bicycle from a brand called Longhorn. I have never heard about it. However the quality is quite good. So I am quite curious to know from which country the brand originates ...
2
votes
0answers
120 views

Please help me identify this bike frame?

Please help me identify this bike frame for I am a newbie/novice. I will greatly apppreciate it. It appears similar to some 1950s Huffmans, but I am far from certain. Thanks to all in advance who ...
2
votes
1answer
378 views

Road STI with MTB Derailleurs

Not that this question hasn't been asked to death but I'm experiencing very poor shifting, here's my setup: Shifters: ST-5700 (10-Speed Road) Derailleur: M6000-SGS (10-Speed MTN) Cassette: Sunrace ...
2
votes
0answers
807 views

Garmin Edge 1030 and Di2 Connection

I just got a Garmin Edge 1030, and have newer Ultegra Di2 with the buttons on the hoods. I was excited to see that the Garmin can connect to Di2. When I look for it in the sensors, it is not coming up....
2
votes
0answers
67 views

Restoring a 1954 Taylor tricycle

I am searching to replace the front tire. It has a Swan tire, but the size is more important. Measures 12 x 1.75 Pliable enough to remount on rim
2
votes
0answers
179 views

What type of frame could this be?

Recently purchased this 1x11 rebuild. Decals have been removed and it has a fresh powder coat. The stripes are coloured electrical tape so don't go by that... I've heard it could be a Miyata or ...
2
votes
0answers
111 views

help me identify this kids bike?

I would much appreciate it if someone could help me identify this bike? i went ahead and did the measurements asked as well as took a photo for scale. the folding bike infront of a 29" mountain bike ...
2
votes
0answers
223 views

Please help with bicycle identification

Can you please help me identify this bike. I think it is aluminium as it is only 9kg all up. I suspect it is quite good as it has very good gear such as Shimano Ultegra. I appreciate your help.
2
votes
1answer
1k views

What is required for a proper boost chainline on a 1x drivetrain - only a boost chainring or an entire crankset?

To obtain a proper chainline for a boost rear hub (~52 mm), is it enough to fit a boost (3 mm offset) chainring to a 1x crankset which is originally non-boost, or is an entire boost crankset required (...
2
votes
0answers
260 views

Why do SRAM rear derailleur not have a parallel movement

My SRAM rear derailleur (Rival 22 circa 2016) has a non parallel movement. When it is in the lowest gear, the cage and pulley sprockets align with the cassette sprockets, but when it's in the highest ...
2
votes
0answers
51 views

How to access South County Trailway from Manhattan on a road bike?

I'm interested in riding the South Country Trailway in New York. From reading on the internet, it appears that the trail is paved, but the paving promptly ends at the start of the trail in Van ...
2
votes
0answers
118 views

Raleigh Twenty front wheel removal

I'm trying to change the tires on a c. 1971 Raleigh Twenty, and I cannot for the life of me get the front wheel off: nuts are loosened, dynamo/basket support/mudguards all disengaged, but it won't ...
2
votes
0answers
28 views

What size rear axle and cones for 1999 Schwinn Cruiser 6?

What size rear axle and cones fit a 1999 Schwinn Cruiser 6 bicycle. I cannot find a part number or identifier, is it the same size as BMX parts?
2
votes
0answers
93 views

Which ball bearings to put in Union K10491 pedals?

I am trying to put a neglected bicycle back on the road. It has a pedals marked with W. GermanyK10491. Google search revealed that they are Union K10491 pedals. I have found good pictures on ebay. My ...
2
votes
0answers
155 views

Difference between BR-IM and BR-C Shimano drum brakes?

To ride in a hilly area, I'd like to replace a weak BR-IM45 front brake with something stronger (eg. IM70, IM81, or IM85.) I notice Shimano has two different lineups for their drum brakes: BR-IM and ...
2
votes
0answers
98 views

Nasty noise from chain device

Hi I've purchased and fitted a superstar components plasma chain device in my specialized big hit. It makes a terrible noise and I really don't see why. As far as I can see I've set it up correctly ...
2
votes
0answers
323 views

rack for Kona Paddy Wagon

I have a 2010 Kona Paddy Wagon which I use for commuting and I'm tired of riding with a heavy backpack (I need to carry a laptop). The bike has only one set of eyelets, which I currently use for ...
2
votes
0answers
99 views

Is the FOx TALAS 32 RLC suitable for reasonable jumps, ligh DH?

Here is the details of the suspension: FOx TALAS 32 RLC At the end it sais, that INTENDED USE is XC, AM. Not exactly sure what AM means, I have a few light enduro trails nearby, and the biggest jump ...
2
votes
0answers
204 views

Can someone tell me what year this Elgin Sears Roebuck bike is and what model?

Sears and Roebuck Elgin vintage

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