All Questions

8
votes
0answers
199 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 ...
5
votes
0answers
104 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
463 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
43 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
150 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
55 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
68 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
122 views

Ackermann compensation - how to work Peter Eland's spreadsheets

I am building tadpoles trike with "dual crossed drag link" type steering, and having been using the spreadsheets below to get the Ackermann compensation right. I am however not really sure how to get ...
3
votes
0answers
295 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
3k 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
269 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
565 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
62 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
51 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
213 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
49 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
166 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
140 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
160 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
42 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
70 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
106 views

Friction shifter for Rohloff speedhub?

This is might be trivial for someone who actually have a one, but after countless hours reading and watching about the Rohloff speedhub I can't answer this question myself. AFAIK the OEM grip shifter ...
2
votes
0answers
25 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
67 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
110 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
84 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
249 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
70 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
421 views

Child sleeping in bike trailer

My husband and I like to take our 3.5 year old daughter for bike rides and she rides in a trailer. But the problem is that she is sitting idly on a calm, mostly smooth ride on a bike path surrounded ...
2
votes
0answers
151 views
2
votes
0answers
330 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
136 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
138 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
294 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
146 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
135 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
145 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
184 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
86 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 ...
2
votes
0answers
106 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
57 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
59 views

How do wheel chair hubs/axles work?

I'm trying to build a trailer and would like to use wheels with the quick release wheelchair hub/axle mechanism. What I'm not understanding is how these would hold in the actual half inch pipe? Is ...
1
vote
0answers
116 views

Hydraulic disc brakes operating by themselves

When cycling up steep inclines on my mtb sometimes the rear disc brake comes on without me being anywhere near the brake lever. I can tell it's doing it as it's gradual and pedalling becomes difficult....
1
vote
0answers
62 views

Lubricating an alfine 11 IGH hub

I have an almost-new New-Old-Stock Shimano Alfine11 internal geared hub in the rear wheel of my bike. Its on 300 km now, with a first oil change due at 1000 km and then yearly or every 5000 km after ...
1
vote
0answers
36 views

Any 36.4mm Dropper Seatposts?

I've a diameter of 36.4mm, are there any dropper seat posts that make the size diameter for my bike?
1
vote
0answers
102 views

Identifying a brazed steel frame

I'm trying to identify this brazed steel frame I came across. Any help would be greatly appreciated.
1
vote
0answers
47 views

Where to find this type of chain guide?

As the title says, where can I get this type of chain guide? My chain falls off exactly at the bottom side of chainring when I'm making bigger jumps and this would be the perfect solution for that.
1
vote
0answers
41 views

upgrade traditional saddle clamp (not seat tube clamp)?

I'm currently restoring my folding bike and it has a large diameter (34 mm/1.34 in) seatpost that tapers to the standard 22 mm/0.87 in diameter at the end. The bike currently uses that traditional ...

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