All Questions

3
votes
2answers
148 views

Why do current mountain bikes have such steep top tube? Comparing my Kona Blast 2001 vs 2019

I am very curious about the geometries of mountain bikes nowadays (or probably since a while back). They all seem to have very tilted top tube .. compare my Kona Blast 2001 vs 2019 Kona Blast 2001 ...
4
votes
1answer
80 views

Saddle: how good is narrow?

I’ve had a Brooks B68 for a few years now. It’s 205 mm wide; I have a fairly upright riding position; my back is about 25 degrees off the vertical. Before choosing it I read the advice on the web ...
0
votes
2answers
62 views

New bike but no idea on inner tube size

I bought a new bike a few days ago, Cannondale Bad Boy 3 2019 which gets delivered in a few days. https://www.cannondale.com/en/Europe/Bike/ProductDetail?Id=7f48452b-f9eb-4e10-89e7-4a7550944bfa ...
2
votes
2answers
95 views

What are the different uses for the 110 vs 114 vs 116 link bike chains?

I used to just leave those to the bike shop guys .. but nowadays .. I would prefer learn these basic skills myself Currently I was searching for a replacement chain for my bike .. was told that for ...
1
vote
1answer
74 views

New disc brake frame feels heavy at the back

Just bought a Cube Attain, and it is heavier than the Felt F95 that I just crashed. I liked the feel of that bike, but wanted disc brakes for the hills I ride - tried upgrading the brakes on the old ...
0
votes
2answers
142 views

What am I looking at?

So, my neighbors husband passed and gave this to me. He was an avid rider. What am I looking at? Across the frame, looks like a sticker that once said Peddle Power on it with Shimano XT gear all ...
1
vote
1answer
81 views

Will extra teeth on a chainring work?

The current chainring im using has 32 teeth but I need to buy a new one. The reason is because the chainring I'm using is actually from a 3x set so the teeth does not have narrow wide teeth which is ...
1
vote
2answers
66 views

Rack bags options

I've attached a rack to my bike, this one: Now my question is: what are my options for bags or something I can attach to it? I'm not asking about a product rec, just for a list of options with pros ...
0
votes
1answer
129 views

What is the brand/model of my bike frame?

Does anyone know what brand/model is bike from photos or serial number?
2
votes
0answers
58 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 ...
10
votes
2answers
2k views

Best way to strengthen a wheel?

I'm a relatively heavy chap - 95kg or so. (15 stone, 210 pounds) I've got a commuter bike which uses a NuVinci N360 hub. The hub itself is quite heavy at 2.5kg and I suspect contributes to what is ...
2
votes
1answer
115 views

How to repair pedal snapped off crank arm? [closed]

The pedal snapped off the crank arm and there is a portion of it left inside. How do I dig this out and replace the pedal?
3
votes
2answers
84 views

Old bike - Chainring bolts

I have an old "Favorit" racing bike from Czechoslovakia and I'm missing some bolts on the chainring. I went trough some bike shops and couldn't find a replacing one. The bolts diameter is slightly ...
2
votes
2answers
123 views

How can I know my brake fluid needs changing?

I have a few bikes with shimano disc brakes. I know changing the fluid is something that can be done and I could probably work out how to do it but I don't know what to look out for to know its time ...
2
votes
2answers
65 views

Ancheer electric mountain bike cuts out under load

My year-old 250W Ancheer electric mountain bike currently has an issue. When going up hills, the motor is put under a lot of load and the battery turns off. It remains off until reset by toggling the ...
0
votes
2answers
38 views

24V eBike Battery

I have an 2003 Merida PC550 24v ebike which uses two 12v 9ah batteries. Is there a converter available to use one large 12v battery to get the same output? I know that I can use two 12v batteries in ...
3
votes
2answers
63 views

How to retrieve broken off end of gear cable from inside Shimano 105, 11 gear, lever?

The gear cable was badly frayed in the handle system, where it bends through 90 deg. I had to cut it to remove the cable...but in doing so, the tip with the cable end (about 10mm long), has moved on ...
2
votes
2answers
48 views

Shimano MTB levers with Shimano flat mount road disk brakes (hydraulic)

Can you use Shimano MTB levers with Shimano flat mount road disk brakes (hydraulic)? Cheers
1
vote
1answer
57 views

Finding compatible parts

I am looking for some guidelines for finding compatible pieces with the ones I currently have installed on my bike. I have for instance a right brake lever (bl-m445) which is leaking oil. It is ...
3
votes
3answers
86 views

Rust hole on tube between chain stays

I've inherited a frame my father used to ride and was planning on getting it blasted and coated. Checking it over it all seems to be in fair condition (its decent 531 Reynold tube), some rust, but ...
0
votes
2answers
66 views

Preventing use of low gears while training

I'd like to avoid using my two lowest gears while training for a hard and hilly cyclosportive. I am able to resist, but nevertheless do occasionally make a mistake. Is there anything I can do to ...
1
vote
1answer
64 views

Help Me Identify My Bike Serial No. : HZ100202418

Hi please help me identify my bicycle, which has serial number HZ100202418. Here's a picture of the head-tube badge, but I don't think it's original
1
vote
3answers
78 views

Budget brands for gears in India [closed]

A total newbie here. I'm planning to upgrade a single speed to geared one road/tour bike. I haven't decided the gear system though. I guess I'll decide that upon availability of the parts. Well, I ...
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 ...
1
vote
2answers
107 views

Getting into biking — choosing between choices [closed]

I am brand spanking new to cycling and have been intensely researching what brand of bike to buy. Since I'm new and not leaping into any races anytime soon I know I don't need a track bike, but I also ...
3
votes
2answers
77 views

(Light?) rust removal from chain

Situation: I'm new to the world of trike maintenance. My son and I purchased recumbent trikes at the end of last summer. The weather for the past couple of months has been cold, snowy, cold, and......
5
votes
3answers
1k views

How do I purchase a drop bar bike that will be converted to flat bar?

I really like the Kona Sutra from both a price and specification point of view. As I have only ridden flat bar bicycles I am not sure if I can used to the drop bar. In case I cannot, I would like to ...
0
votes
1answer
39 views

Crank tool threads for a BodyGuard R6X

I need to replace a circuit board on my Bodyguard R6X exercycle. Bodyguard sent me the circuit board but little else with respect to information/instructions. I need to pull a crank so I need to buy a ...
4
votes
2answers
114 views

What method or algorithm is used for computing Power Curve on Strava?

Many cycling analytics apps like Strava, TrainingPeaks or GoldenCheetah are offering the Critical Power curve chart, computed from the power meter data. I'm familiar with the curve meaning and usage,...
1
vote
1answer
48 views

Mechanical disc brake calipers: Removing pads from top side vs bottom side

Regarding mechanical disc brakes, is it preferable to have a caliper with pads removable from the top side? Shimano BR-RS305-F calipers use pads removable from the top; Shimano BR-R317 uses pads ...
0
votes
0answers
60 views

Can I use a triple STI shimano shifter with a double crankset?

I need to change my tripple chainset to a double one. My current setup is: front derailleur: RSX A410 (it seems designed to works with doubles - as far as I can read on its back) chainset: SR SUNTOUR ...
2
votes
3answers
124 views

What determines crank length?

Without getting really technical what determines the length of the cranks that you would use on your bike? I was wondering if longer cranks without being ridiculous would act as a fulcrum and make ...
-3
votes
1answer
74 views

What kind of bike do I have? Serial number is VF-8S3-20.5-9 [duplicate]

BMX frame has two holes on front tube for forks.
3
votes
1answer
118 views

Lost power when chain is not lubricated properly

Does anybody know how much power is lost when the chain is not lubricated properly? I drive a rather heavy bike and experienced that when the chain is not lubricated it definitely has an effect. Can ...
2
votes
1answer
195 views

Does there exist a non-electric bike that can go 60mph (95 km/h)?

I recently ran into this article here where a woman bikes at about 184 mph (295 km/h). Now certainly there were some crazy ideal conditions here like an extra special bike and clothes, drafting behind ...
1
vote
2answers
121 views

What is the proper placement of the feet on the pedals when viewed from the top?

When placing my feet on the pedals with the balls on it, the outer part doesn't fit the pedal anymore. If I moved the foot backwards, the pinky would not be on the pedal anymore. I wonder if that is ...
2
votes
1answer
87 views

Help identifying this chainring

where can find online a chainring with fittings like this?
0
votes
0answers
44 views

How much stiffness points on Shimano shoe is before it is noticeable?

I'm debating over getting the older R171 or the newer but cheaper RP501. R171 is listed as 10 stiffness index while the RP501 is 8, but it has boa dial and is the newer design and everything. Can ...
1
vote
1answer
47 views

What is the maximum input torque on Sturmey-Archer internally geared hubs?

What is the maximum input torque that can be sustained by sturmey archers internally geared hubs. The website is surprisingly short on info about this. I'm specifically interested in the hybrid ...
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 ...
1
vote
1answer
38 views

Threading for BB (British) for Hollowtech 2 or square taper crankset?

I have square taper crankset from Sugino (compact double 48-34). I am using their aluminium cartridge BB (I think it's 68mm). Anyway, I was wondering what is the difference, if any, regarding the ...
0
votes
2answers
72 views

Upgrading cassette to give bigger bottom gear

On e.g. a Giant Stance, can the lowest gear on the cassette be upgraded to a higher tooth count just by only changing that cog?
0
votes
0answers
36 views

Mid-drive groupset options

Is the SRAM EX-1 my best hardware option to ensure my chain doesn't jump on a mid-drive in case I shift at the wrong time? I'm working on my technique but would like some assurance too that I'm not ...
0
votes
0answers
29 views

Rockshox Recon completely locked

I bought a second hand bike about a month ago with the Rockshox Recon fork (100mm). A couple weeks later it suddenly stopped working. It is completely locked out and every time the shock tries to ...
3
votes
1answer
47 views

How to bleed rear SRAM Force 1 brake

I'm having a hard time bleeding the rear brake of my Specialized Diverge. Following closely the instructions provided by SRAM (and other sources like GCN and other people from YouTube) only works for ...
0
votes
1answer
55 views

Why the vertical difference between the right-most point of TT and the left-most (union with ST) is not part of a geometry chart?

One of the things I often look to determine whether a bike fits a specific purpose is that distance mentioned in the title, that is, if you draw a line from the stem to the seat tube, and then you ...
8
votes
4answers
3k views

Why are recumbent bicycles and velomobiles illegal in UCI bicycle racing?

As stated in the title. However, the "superman" position is also illegal, and the question applies to that as well. Motor racing will often lean on safety to explain why there are so many limitations ...
4
votes
2answers
321 views

How to access seat-post lever on the handlebar?

I would like to change the position of my seat-post lever but in order to do so, I have to untighten its screw. The problem is that I can't manage to access the screw, due to the presence of the hard ...
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 (...
0
votes
1answer
66 views

Can I lace a XTR rear hub with thirty two spokes from a Valiant asymmetrical rim to a thirty two hole Magic regular rim?

Can I lace a XTR rear hub with thirty two spokes from a Valiant asymmetrical rim to a thirty two hole Magic regular rim?

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