All Questions

10
votes
0answers
116 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
240 views

Please help identify my 1940's (?) Tandem Bicycle

Please help me identify this tandem bicycle. Here's what I know: I'm pretty sure it's not a Schwinn, as all Schwinn bikes had straight frames without curves. From what I can tell, Hawthorne used ...
6
votes
0answers
115 views

What solutions are there for a tyre that won't stay seated?

I've got a Schwalbe snow and ice 700x38 (also marked 40-622) on a Mavic A319 (19 mm internal width). This, according to Sheldon should be an ideal combination (and if it wasn't, the failure ...
5
votes
0answers
89 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
112 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
484 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
0answers
78 views

What is this part of a bicycle trailer called, and where can I find a replacement?

I have a Schwinn double bicycle trailer for my kids, but it is broken. The black plastic part pictured fits at the base of the right wall and connects it to the trailer frame. A bolt goes through the ...
3
votes
0answers
33 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
105 views

Back wheel suddenly started “wiggling”

I bought recently a second hand bike for my daily rides, and it seemed in good shape. I rode it for more than a month without any problems, but recently had issues with it and had to get it fixed (...
3
votes
0answers
53 views

Getting ride data from Bosch CX System

Recently got a Cube eMTB with Bosch CX system installed. Love the bike, does well for commutes and some bush bashing over the weekend. Being a nerd, I like my data. Considering the system already ...
3
votes
0answers
171 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
62 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
79 views

How to find a model number that replaced an old Shimano part

Is there some listing of Shimano component model numbers that can help me find a currently-manufactured part that is equivalent to an old model number that is no longer being manufactured? In ...
3
votes
0answers
310 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
282 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
602 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
35 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
75 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
59 views

Replaced rear axle, now seems to wobble

I was replacing a tyre a couple of days ago, and noticed my rear axle had snapped. So I replaced the axle, just a normal road 10mm x 145mm, it's a basic Shimano sprocket set and no-name aluminium ...
2
votes
0answers
63 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
48 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
95 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
105 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
0answers
111 views

Can I use Shimano's Di2 e-tube project software to do a custom lock out of additional small sprockets while in the small chainring?

Context: I'm designing a drivetrain for a touring triple-tandem that I'd like to have a very wide gear ratio. I plan to use the Shimano Di2 derailleurs (long cage RD-M9050-SGS and 3x11 FD-M9050) to ...
2
votes
0answers
370 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
54 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
171 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
106 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
156 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
0answers
185 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
44 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
76 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
26 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
75 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
123 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
88 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
265 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
81 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
171 views
2
votes
0answers
341 views

Tightened the bolts on the bottom of my suspension fork — What now?

So... a few hours ago I did a bolt check on my bike. As I was about finished I checked the 2 bolts on the bottom of each of the fork's legs. They were kinda easy to tighten so I said to myself go for ...
2
votes
0answers
142 views

Where should I look for a reliable chainguide for a large chainring (52T)?

I'm building a hybrid bicycle using a Specialized StumpJumper S-Works carbon frameset. The drive-train is 1x12. Wolf Tooth 52T cyclocross chainring, to beef up the top end gearing. (The chainring ...
2
votes
0answers
140 views

What brand is this BMX frame?

Can anyone tell me what bmx frame this is? I can't find anything about it.
2
votes
0answers
318 views

Help identifying a Bianchi track frame

I've been trying to identify this Bianchi track frame - any help would be appreciated! Closest I've come is Eco Pista from early 80s, but I'm absolutely no expert on the matter. The numbers on the BB ...
2
votes
0answers
152 views

Magicshine MJ-872 disassembly

My light doesn't seem to work well, after 15 minutes of work it starts to switch to lower settings and shutting down. My guess is that I need to add the thermal paste that might be quite old (3+ years)...
2
votes
0answers
142 views

How tolerant is the range of front derailleurs?

Say you have a front derailleur cited as having an 18T range, with a 42T main ring. According to the specification, the smallest inner ring can be 24T. But how strict is that? Is it possible to get ...
2
votes
0answers
147 views

What kind of frame and brakes are these?

I just bought a bike and I can't figure out what kind of frame and brakes it has. I found that the derailleurs were made by DNB Japan somewhere around 1960 and that the handlebar is french (Guidonn ...
2
votes
0answers
1k views

Shimano Nexus 3 coaster brake screeching sound

When I brake hard/er with my Shimano Nexus 3 coaster brake it makes a loud screeching sound. Like really loud, everybody on the street would hear it and turn around. Since I know it's all internal all ...
2
votes
0answers
211 views

Internal Roller Brake Problem

I have Shimano Inter M Roller Brakes on my bike. I felt the rear brakes were a bit light after riding 800 or so KM (total mileage on my bike so far) so I thought maybe theres a bit of cable stretch ...
2
votes
0answers
89 views

Chain vs seatstay with a 50T Chainring - BMX frame

I plan to put a 50T chainring on my bmx but I am afraid to have an interference between the chain and the frame. Does anybody know what is the critical distance between the seatstay and the chain so ...

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