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Unanswered Questions

100 questions with no upvoted or accepted answers
9 votes
1 answer
949 views

Shimano Dura-Ace R9120 lever leaking

My bike's Dura-Ace R9120 rear-brake/front derailleur shifter (left shifter in UK) leaks brake fluid when I pull hard on the lever. It leaks from this specific place: I understand this lever is ...
6 votes
0 answers
483 views

Shimano road bike lever leaking mineral oil

I have a leak in my Shimano DA 9170 (right) shifter. When I do a bleed, everything seems to work for a ride or two and then I start to lose braking power and the underside of the brake hood is wet ...
6 votes
0 answers
996 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. ...
4 votes
0 answers
523 views

What bike frame has these lugs?

Can someone help me identify my bike frame? It has this V-shaped cutout in the top tube lug and a serial number of 2948. It has SunTour dropouts, likely NJS.
3 votes
0 answers
148 views

Help identifying brand of road bike frame

Last year I bought this second-hand bike, but I was a total newbie and didn't realize that the branding was just stickers until I received it. It's still a good bike and I'm having fun with it, but I'...
3 votes
0 answers
115 views

What could the source of this ticking sound be?

I have an annoying ticking sound that I need some help with. I've read through a lot of suggestions online and two bike shops have failed to solve it. The bike is a brand new custom build (Trek Emonda ...
3 votes
0 answers
86 views

Just hoping someone out there recognizes this bike and can help identify it

Assuming this is a 90s era aluminum frame with only a head badge sticker to identify it, no name or model printed anywhere. RX100 RD, DeoreXT FD, Sugino triple crank and Exage500EX brakes. the fork is ...
3 votes
0 answers
116 views

I need help identifying this womens bike frame, please

It's nearly 70 years old. I've narrowed the potentials down to Sears, Schwinn or possibly J.C. Higgins. I did just order the wheels for this and it takes 26" schwinn apparently as opposed to ...
3 votes
0 answers
151 views

Bike Frame Identification

Does anyone have any leads on what make/model/year of frame this is? I spotted this bike last summer and it's been nagging at me ever since. I love the design and am trying to track down who is ...
3 votes
0 answers
519 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
0 answers
599 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
0 answers
40 views

Surface scratch on carbon steerer

Following my previous post, I managed to find an identical new fork replacement from a reseller since the communication with the company was absolutely terrible... When I unpacked the fork though, I ...
2 votes
0 answers
76 views

Identify this Bianchi - possibly 80s

Can someone please help me identify this Bianchi model? My uncle has had it in storage for since years – I believe it's from the 80's. Here are some photos, to help identify the model. Cheers, Alex
2 votes
0 answers
105 views

Identifying this road bike brand

Can someone help me identify this frame? It was given to me in Switzerland. My uncle and cousin bought it already painted grey. I noticed an engraved logo in the dropout, but it does not look like it ...
2 votes
0 answers
118 views

Pirelli tires (mixing 700X23c and 70025c)

A bike shop (whom I trust) replaced my tires with new 700X25c Pirelli P Zero Zello 4S front and rear, the rear tire did not clear the fork/frame for some reason, they switched the rear 700X25c with ...
2 votes
0 answers
302 views

Why is my bar tape wearing out quicker on one side?

My bar tape has been wearing out on the left where my palm meets the bar with I ride on the hoods, but not on the right. I've noticed the same thing on the gloves I usually wear. Is this cause by how ...
2 votes
0 answers
1k views

Grinding noise from headset

I have a 5 year old Merida Ride 100, which has done about 5000km. It mostly has been in dry conditions, but has seen some wet conditions once in a while. After the last ride, I noticed some grinding ...
2 votes
0 answers
150 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
0 answers
216 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
0 answers
1k views

BMX frame logo identification

I have a BMX frame with a stylised "h" on the rear forks. Can anyone ID it for me?
2 votes
0 answers
161 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
0 answers
126 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
1 answer
98 views

Old bike: replaced rear axle but the tire goes off the axis when I get on it

I just broke and then replaced my rear axle on an old timey race bike I bought online. Everything seems to go smoothly when the bike is up on a stand or on at my side, but once I get on it and try to ...
2 votes
1 answer
407 views

Is this a real Concorde or just a replica?

I'm confused with this, the lugs in this bike look identical with another Concorde but the tubing sticker clearly says "Reynolds". (Concorde only uses Colombus, right?)
1 vote
0 answers
63 views

Searching for vintage piece

I'm trying to repair my vintage gazelle impala bike and I'm missing just one piece :( Does anyone know where I can find the piece seen in the photo? It's part of the brake cable anchor bolt. Thank you!...
1 vote
0 answers
87 views

Can anyone tell me what frame this is please?

Can anyone tell me what frame I have here? It has RockShox forks and removable rear dropouts.
1 vote
0 answers
192 views

What model is this Dyno? Serial number makes it 1995 Nitro? VFR?

All stamped Dyno, white chainwheel, forks, stem, and bars. Cant find another like it, wondering if parts may have been swapped out at some point because I cant find this colorway anywhere, the ...
1 vote
0 answers
48 views

Need help identifying this logo on 2016 bmx

I was looking for a bit of help identifying this insignia on this 2016 bmx I'm restoring. Any help would be fantastic
1 vote
0 answers
38 views

Compatibility Shimano rear derailleur RD-6300

I have this Shimano 600ax. Due to my stupidness I broke the body of the rear derailleur endings its life. There are other rear derailleurs (RD-6300) on ebay for example but these are very expensive ...
1 vote
0 answers
569 views

Shimano 105 r7000 front derailleur hard and clunky shifting, shifter harder to shift

A total newbie to DIY bike repair here, and my Shimano 105 r7000 FD is shifting really harshly after a wash. Washed it with dish soap plus water solution, however I did not give the FD any specific ...
1 vote
0 answers
91 views

Magnitude of load and cycles needed during testing of bike forks

I want to do a structural test on bicycle forks. Is there any specific criteria I need to follow of what should be the magnitude of the significant load and also how many cycles would need to be ...
1 vote
0 answers
176 views

Golfer’s elbow (Inner elbow pain) from drop bars?

I’ve been cycling for 3-4 years on a flat bars without any pain in My joints . recently I switched to drop bars, My arms are slightly bent when I ride so My bike fit is ok But I’m having an inner ...
1 vote
0 answers
66 views

I have a double walled bicycle wheel frame seam that has a gap underneath NOT on top? It does not go all the way round, only underneath. Is this fine?

I have a double walled bicycle wheel frame seam that has a gap underneath NOT on top? It does not go all the way round, only underneath. Is this fine? The bicycle is a No Logo X-type racing alloy bike ...
1 vote
0 answers
76 views

please help identify this bmx brand logo!

having trouble identifying this logo found on my Bmx frame- any ideas? Many thanks
1 vote
0 answers
80 views

Getting the correct road bike size, moving from MTB

Currently I have a Large Stumpjumper 2021 29er. The size was advised by the shop I purchased it from. It was OK at first but I ended up having a bike fit to adjust a few things (slightly longer stem ...
1 vote
0 answers
85 views

Help identify a frame

could someone help me identify a mountain bike frame, the rear triangle of the frame has square tubing, it's a late 90s early 00s frame.
1 vote
0 answers
414 views

Help me identify bike frame. Repainted, but have serial number

I got this bike second hand, accordingly to the previous owner it should be a rocky mountain. He said that he repainted the bike and created new stickers for it. I couldn't find a similar rocky ...
1 vote
0 answers
101 views

identifying a mtb frame

about one or two years ago my brother has brought this bike home and i am now thinking of restoring it. It has an alloy frame unsure of the size but the wheels are 27.5", feels strong and solid... But ...
1 vote
0 answers
161 views

Can anyone identify this green frame?

Like many others, I found this aluminum frame bike that is pretty light and in great shape. The bike has been converted to disc brakes and I believe that everything is aftermarket. Serial number ...
1 vote
0 answers
106 views

Rear shock mounting hardware for Felt Virtue 2015

I recently bought a Felt Virtue 2015 aluminum frame. Just wondering if anyone else who bought the same frame have the correct sizing for the rear shock mounting hardware. For reference this is the ...
1 vote
0 answers
98 views

Help in identifying our newest project

Any help getting info on this bike would be great. Only tags/badges are a Japan stamp and a diamond with a 5 in the middle under the frame. Thought maybe a Japanese knockoff from Schwinn but the bars ...
1 vote
0 answers
414 views

Standard vs wide shimano shoes

Would my normal sized feet still fit snug on a wide shimano shoes? I’m looking to buy the RP3 but only the “wide” is available. I’m buying online so i can’t personally try it on. Appreciate all the ...
1 vote
0 answers
637 views

Need help identifying a vintage road bike, possible Benotto 3000

I have this bike that I bought at a local store, I'm from Costa Rica> The manager sold it to me as a Benotto, but I can not find anything that tells me that it is apart from the stickers. The headtube ...
1 vote
0 answers
220 views

Replace Viner Settanta seat post securing wedge

My seat post wedge has been removed. There seems to be loads of different styles and shapes depending on the make and model of frame. Does anybody know if any other makes will fit it as having trouble ...
1 vote
0 answers
240 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
0 answers
82 views

Identify Brand of Bicycle

I am wondering what brand of bicycle this is? Thanks
1 vote
0 answers
422 views

Help ID'ing early 90's Lemond

I was wondering if anyone could help me identify this bike, or point me to the resources I could use to get get a better idea about what it is. -- Pictures @ Imgur Cross-post on reddit "This seems ...
1 vote
0 answers
162 views

Can anyone identify this second hand bike?

I am looking into getting a new (for me) road / TT bike and this came up but I think it isn't a Specialized Shiv... many thanks
1 vote
0 answers
96 views

1970-80's Roadmaster bike makes a clicking noise when turning right

A 70's/80's Roadmaster Pursuit bike makes a clicking noise when turning right. It doesn't make any noise when riding straight or turning left. It doesn't seem to matter how close the turn is. I have ...
1 vote
0 answers
186 views

Could somebody please identify this bicycle?

I have been looking into purchasing a second hand road bicycle for my daily commute. I went through many possibilities and would like to know if any of you have seen or can identify the attached. Do ...

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