0
votes
0answers
14 views

Shimano STEPS E8000 battery won't charge

I have a STEPS E8000 bike and wanted to make some improvements, like possibility to charge from any kind of CC/CV charger (even using solar panels when grid is not available) and to charge it to 41v ...
2
votes
0answers
35 views

How can I dress up a bike as a unicorn?

Or a horse, of course. The bike has to be rideable, and needs to return to normal afterwards. Most years my city has what they call a "carnivelo", a family ride in which bikes, riders, trailers, ...
0
votes
1answer
40 views

Resistance in rear hub?

I bought a new mid-range hybrid bike (Pinnacle Lithium), and for the first couple of weeks it was an absolute pleasure to ride. Then I went on holiday for two weeks, leaving it in a shed in the heat (...
1
vote
0answers
27 views

Should internal brake cables use ferrules at the entry point to the frame?

I recently got a titanium frame with internal cabling. The holes where the brake housing enters the frame are just big enough to fit a ferrule. Should I use ferrules or is it OK for the cable housing ...
0
votes
2answers
25 views

Help to Diagnose a Problem with Northrock XC6 Mountain Bike

I have been fixing up a Northrock XC6 bicycle. Symptoms: Chain clunk when trying to start moving. It feels like the chain is slipping. It only happens under load, I cannot get the same symptom by ...
4
votes
1answer
82 views

Do Left handed bikes feel different to ride?

Want to buy a BMX bike but they only have left hand drive ones in stock. Does it feel the same as a right hand drive?
0
votes
1answer
23 views

Stuck throttle open on specialized turbo electric pedal-assist bike

The throttle is stuck open on my 2016 specialized turbo. How do I adjust or fix? Note there is no throttle switch, and is a torque pedal assist mechanism. (it senses how hard you are pedaling to ...
3
votes
1answer
370 views

How many spokes for a single speed road bike?

I want to buy a handbuilt wheelset from a local bike shop and I am in front of the decision of how many spokes I want to put on front and rear wheel. The application of the wheelset is a singlespeed ...
1
vote
1answer
58 views

Disk brakes don't work well after taking out pads and putting them back

I checked my disk brakes for the first time last night (i've never had disk brakes before). The front ones were definitely worn out, and I replaced them. They work great, now. With the rear ones, I ...
1
vote
0answers
63 views

help me identify this kids bike?

I would much appreciate it if someone could help me identify this bike?
-2
votes
0answers
32 views
0
votes
1answer
33 views

Is the 30 teeth chainring on Campagnolo Mirage 52/42/30 crankset replaceable?

I have new (for me) 2008 Orbea Onix TDi with existing 50/34 front crankset. My shifter is 3 steps - to switch from 1st to 2nd I have to click twice. All parts are Campagnolo Mirage. Climbing the ...
0
votes
1answer
34 views

How do I determine my bike's fork width?

I have a Breezer Liberty 2.3. I am trying to determine whether it would work with the CycleOps Hammer trainer. The trainer says it is "Quick-release compatible for bike frames with fork widths of ...
1
vote
2answers
52 views

MTB Helmet on a Road-Touring Cube bike

I'm getting the next month a Cube Nuroad black/red 2018 for my little trips and some commuting. I got and old Btwin MTB helmet bought in Spain. Is it good to wear on this type of bike? I'd use ...
0
votes
1answer
37 views

What are the causes of rear derailleur chain noise?

My rear derailleur is making some noise and I'm having trouble diagnosing the cause. It seems like it's coming from the rear cogs and sounds similar to chain noise. I'm re-building my bike after an ...
2
votes
1answer
34 views

IS mount facing?

I am currently trying to convert my bike to disc brakes. The internet advises to face the IS mount on the frame, because it is coated with paint. Usually this would be no problem, because the actual ...
1
vote
3answers
63 views

Is 7-speed for 10-speed cassette replacement possible?

I have a city/touring bike with Shimano MF-TZ21 freewheel hub which is 340mm wide (I measured). I would like to change it to a 10-speed cassette 11-25 or 11-28 but I am not sure if it can fit between ...
-1
votes
0answers
62 views

How old is this bike? [duplicate]

I would like to know how old is this Raleigh bike in the picture (picture is missing). Does anyone have any information about the model? I would appreciate your input.
1
vote
0answers
52 views

I am willing to switch from 700x23c to 700x28c (front) and 700x25c (rear)

I've just bought Orbea Onix TDI Road Bike that has 700x23c tires. They are very tough on the roads that I have around - I go to mountain highways and there's a lot of pavement cracks that feel too bad ...
0
votes
0answers
23 views

Part alternatives from Trek 8.5 elite series

I have a Trek 8.5 elite series using; Cassette: Shimano HG 62 10s 11-38 Crankset: M552 42/32/24 Unable to obtain the above specs spares. Please advise; alternatives for the above (crankset & ...
1
vote
1answer
94 views

Modern road bike 8 spd vs 9 spd - what are benefits and is it just about the speed? [on hold]

I am a little struggling on whether to go with the 8spd or 9spd models for my very first entry level road bike. Based on the spec, which I surveyed among the following bikes, the 9 spd model is almost ...
1
vote
1answer
62 views

Are bike frames galvanized

I'm sorry for the stupid question, but I have a primer that works on steel but specifically says to avoid galvanized metals. I don't really know how to tell if a metal is galvanized or what use-cases ...
1
vote
1answer
48 views

Shimano Ultegra CS-6800 11/32 replacement?

I currently have Ultegra CS-6800, 11/32 w/Di2 on my bike. I've been wanting to get a second set of wheels and see that CS-6800 series is now replaced with the CS-R8000 series. If I move to the R8000 ...
2
votes
3answers
125 views

Is it significant that my bike sometimes makes a “twang” sound when I hit a bump?

I recently bought a 2016 Cannondale Synapse Carbon Disc road bike, which is working great -- however I notice that occasionally when my front wheel hits a bump (e.g. a small pothole or the lip of a ...
4
votes
2answers
815 views

Test drive of bike derailed chain easily … bad sign or nothing?

I tested a bike at a bike shop today. I rode it about 30 feet / 10 meters, turned left up a very shallow hill, hit the left (forward) dérailleur and the chain came off (went past innermost front ...
4
votes
1answer
161 views

How do the pros recover so quickly after a crash? And what can we learn from them?

I assume when pros crash, they do the same damage to themselves that the rest of us do. Although they're lighter, they tend to be going faster. But not only do they often finish that day's racing, ...
2
votes
1answer
42 views

Inflating toddler tires

I got my toddlers bike second hand & it looked like tyres were a bit flat. We brought new tubes & when I went to replace them I found that the current ones inflated. It seems that I can pump &...
2
votes
2answers
35 views

Compatible tyre widths for 622 × 17 rims?

I have 622 × 17 rims on my hybrid and currently have 700×40c tyres on (came with the bike). I need a new rear tyre but I am not sure what I can get. From what I can find I should be fitting fairly ...
1
vote
1answer
78 views

What's that thing at the bottom of the fork steerer?

You know that slanted metal thing on the bottom of the fork steerer that can slide around? Like, the diagonal cut thing at the end that you insert into the hole when you assemble a bicycle? What is ...
0
votes
1answer
32 views

Bike brake bleed question

so after bleeding my Tektro mineral oil brakes, the brakes appear to no longer be functional. when I depress the lever until it touches the handle bars. I am still able to spin the wheel. I think it ...
0
votes
0answers
70 views

What is the name of this frame?

Is this a real head badge? And if so whats the name?
1
vote
3answers
81 views

Is it worth to get a Bianchi Caurus 909 and rebuild some parts?

I'm planning to get a Bianchi Caurus 909 2nd hand for city bike and some long rides (30 km average) whenever i want to visit another city for example. The thing is if it worths to get the bike and ...
0
votes
1answer
32 views

Front wheel shifting left on braking with new front shock and fender install

I have a specialized turbo electric bike and just had the shop put in a rock shox paragon front suspension. They didn't have the rotor size adapter for the disc brakes so they swapped my 180mm rotor ...
0
votes
2answers
49 views

Puncture/Tear at base of air valve.

I have replaced three flats on my new bike and found each time a tear or hole at the base of the air valve. What can cause this.
0
votes
1answer
40 views

Calves overcoming glutes function, is this a set up problem?

I've noticed that I usually become really tight calves while my gluts don't work at all. It is specially so when I accelerate in my singlespeed while I'm stand up or when I climb. Sometimes I get my ...
2
votes
1answer
56 views

What's this part from inside the steering tube?

I wanted to replace a stem with a new one, so I first tried to screw the top cap off. What happened is that instead of the cap, the piece in the picture came out. What is the name? Is it bad that it ...
3
votes
1answer
38 views

Replacement shifter for Shimano exage 7-speed - modern shifter compatible?

I've got an early 1990s Schwinn Crosscut with Shimano Exage LX400 components. I've just pulled it out of storage. The bike is in pretty good shape overall. The derailleurs are moving freely and the ...
0
votes
0answers
19 views

Replacement freehub for Boardman CX Comp

I need a replacement freehub for the Boardman CX comp, but I don't know which one to buy, Which one will fit ? This is the bike: https://www.boardmanbikes.com/gb_en/products/840-cx-comp.html Would ...
1
vote
1answer
47 views

Checking 'plumb' when mounting bike on trainer

From my former questions, y'all might be aware that I prefer to ride indoors - for various reasons no hordes of people of median IQ in 1500kg death machines waiting to smoosh me; no need to wear ...
1
vote
0answers
66 views

fixing flat tire [duplicate]

I had to repair a flat. Have some questions. Is it best to apply patch to a completly flat tube? I found a small copper wire in tire. Is there something to minimize what can puncture tire? Thanks
1
vote
1answer
75 views

What methods to determine chain length?

I would like to know what methods there are to size chain length on a derailleur geared bike. There should be more than one answer, so there are effectively no wrong answers - don’t be shy. What are ...
1
vote
2answers
73 views

How to tell if this light's bulb is blown? And what kind of light is it?

See photo. Is this a normal LED? I'm trying to troubleshoot it and can't tell if the bulb\diode is fine.
1
vote
0answers
60 views

Is anyone able to connect Shimnao Di2 SM-BCR2 to Windows inside VirtualBox on Mac OSX?

I have a Shimano Di2 with the SM-BCR2 charger. Unfortunately, Shimano's e-tube software only works with Windows. I installed it in VirtualBox virtual machine and connected the SM-BCR2 to my Apple ...
-2
votes
0answers
34 views

Can anyone help ID this bmx frame

Ok so found this frame laying around seems pretty cool its very light weight but one friend said he thought it was worth alot im not sure have no clue on this stuff here are some pics
1
vote
1answer
84 views

How to change small chainring

I have a bike with a 46/36T crankset (FSA Gossamer Cross BB30) and I'd like to change the small chainring to an even smaller one. ​Googling around ​suggests that the smallest chainring I can get for ...
0
votes
0answers
69 views

Decent road bike? [closed]

Hey there, I was looking to buy a bike and was just wondering if anybody could give me some input about this one I found. Is it a good bike and is is worth 1.200. Also is it a racing bike right? Not a ...
0
votes
0answers
32 views

Where to find good BMX beginner info for adults? [closed]

If there is a good book what would it be? I've found stuff on YouTube, but it is specific to a particular trick, and not getting started or understanding the subtlety of the sport(s). Any particular ...
7
votes
2answers
138 views

What waterproofing rating is sufficient for a navigation device for touring?

I am exploring the possibility of using my phone as the main navigation device for touring. The phone (Pixel 2) is IP67-rated and I was planning to use it without any additional waterproofing, just ...
4
votes
1answer
319 views

Is it possible and safe to attach this type of seat to suspension seatpost?

I have a Merida Crossway 20 bike, and want to change its saddle. Now after buying a new one I am not sure it is even possible to mount it. I had forgotten I have a suspension seatpost, but the new ...
4
votes
1answer
167 views

Repairing Shimano front shifter ST-EF41-L

My son's bicycle gear shifter SHIMANO ST-EF41-L (front 3 speed) malfunctioned (Both levers became free). I disassembled it and found 3 very small plastic parts on the bottom side of the shifter were ...

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