2
votes
1answer
2k views

What make is my BMX frame?

I have a BMX forsale, but I would like to know what make the frame is so I can determine how much it is worth. Does anyone recognise this symbol on the frame? Thanks for your help Jon
1
vote
1answer
142 views

What will be the time to close a gap to catch a breakaway? [closed]

how much time is required to close a gap of 100 metres, in a cycling race, for different differences in speed of leading and chasing group. i need a tool to do the math on the fly. so that if one ...
2
votes
2answers
6k views

Ladies bike on a car rack

I need to transport an "open frame" bike on a Saris Bones 3 car rack. This is the bike - http://arragons.com/online-store/bikes/hybrid-bikes/ridgeback-element-open-frame - and this is the rack - ...
3
votes
2answers
588 views

Do dry wheel bearings increase drag?

My kid trailer I have had for a few years has, in the past few weeks, been noticeably harder to pull. I checked it over and I found that not only are my wheel cones are a little loose, that I can ...
4
votes
4answers
1k views

Modifying a bike for winter (on a budget)

I have two bikes, a hybrid commuter with skinny tyres, full mud guards & rim brakes, then I have a 29er hardtail MTB with hydraulic disc brakes and off road tyres. Which would be best, for ...
4
votes
1answer
166 views

Why no threaded headset cups?

Threaded bottom brackets are much simpler to install require minimal tools (press-in requires a $300 press) are automatically aligned, as the thread was cut in the factory. So what is the reason ...
2
votes
1answer
500 views

How much fork to tyre clearance do dedicated cyclo cross bikes need?

I wish to take part in my first cyclo cross race but would like to avoid buying anything (other than tyres) until I have tried it. I currently ride a Kona Honky Tonk which I believe has enough ...
3
votes
1answer
484 views

Is there a road shoe cleat adapter (from road to mountain) that could be used in a cyclo cross race?

So Im aware that you can buy (3 hole) spd pedal to (2 hole) mtb pedals so you can own one pair of shoes like this one offered by crank brothers. Has anyone ever seen a cleat adapter that could aid ...
5
votes
3answers
13k views

Significant difference between 28C and 32C tires?

I have a Schwinn Sporterra 2011. It has a 622x20 rim and the default tires are 700x38C. I'm thinking of "upgrading" to thinner tires. Now, my local cycle shop has Specialized tires that are 32C. ...
1
vote
5answers
6k views

Plastic screw with ripped-off head stuck in the frame

So I attempted using a couple of shitty plastic screws to attach an air pump to the water bottle mounting holes in the frame. I was using a long-arm torque wrench and the head of one of the screws ...
2
votes
1answer
98 views

FiveTen Freeriders vs Freeriders VXi [closed]

I can't decide between these two models. I need them mostly for technical trail riding, like getting on boulders on the way up (I'm fine with cleats going down, but on the way up on each mistake I ...
4
votes
3answers
3k views

Cyclocross racing with fixed gear road bike with cross tires

I would like to take part in three local cyclocross races in the coming weeks but have a bike dilemma: Should I convert my track frame to a new fork and put one cantilever brake on it and change the ...
1
vote
1answer
209 views

spd pedal on spd sl shoe

Is it possible to fit a SPD pedal and cleat setup on my SPD SL shoe (SH-R131-S)? The answer to why, is to save the expenses for a new shoe. But even if it's possible. Is it a good idea to mix them?
2
votes
1answer
478 views

Spreading a steel front fork

Has anyone got tips on spreading an old steel front fork to fit a more modern hub? I've got minimal tools. I thought a car jack might be a good way to go..
3
votes
3answers
4k views

Best way to patch road bike tubes

I've scoured the internet for this answer, as I recently just tried to repair a tube on my Purefix fixed-gear bike which I assume uses tires and tubes similar to road bikes, as the tire size is ...
4
votes
0answers
464 views

Change the angle of the arc of downtube / stem shifter lever to make it an alternative thumb shifter?

I want to mount the following SunRace clamp-on shifter set horizontally as a "thumb" shifter on a straight MTB handlebar (22.2mm). I will remove the left lever and only use the right with the clamp. ...
2
votes
4answers
451 views

Where can I find Shimano jockey wheels? [closed]

I have a Shimano RD-M510 rear derailleur that needs both jockey wheels replaced. Were can I find them for this older unit? Jerry
9
votes
2answers
1k views

Correct angle for front light?

I have recently invested in an LED front lamp with a battery pack. The results are great, it's incredibly bright and I will feel much safer with it on my bike. However, I don't want to blind or ...
9
votes
5answers
26k views

How to prevent wrist pain on road bikes?

When I started bike-commuting with my road bike I developed chronic pain in my wrists. It probably took a year to go away, and now I have been free of complaints for several years. My wife just ...
1
vote
2answers
505 views

Dahon D7HG Handlepost hinge loosens pivot point

I have a Dahon Vittese D7 HG, bought in Perú 1 year ago, my handlepost hinge begins to sound like crack , then I supposed that it could be because the friction between steel parts, and adjustment on ...
2
votes
2answers
172 views

I am having trouble identifying the manufacturer of this bike

What brand is this logo? Can anyone identify this?
2
votes
1answer
647 views

Building a beginner trial bike

I'm slowly turning my XC biking time into trial sessions. For now I'm only doing some track stands, endo's and wheelies, but I'm probably going to go for more as soon as I can do these properly. I'm ...
3
votes
1answer
4k views

Can I run 2x10 XT Shifters on a flatbar road bike with 105 10 speed STI components?

I want to run 2x10 XT shifters on a flatbar but still want use the 10 speed 105 components of the road bike would there be any problems?
2
votes
1answer
313 views

Front bag/basket configuration that works with butterfly/trekking bars?

My bike has these butterfly/trekking bars. My possibly-mistaken sense is that the hooks most front bags and baskets rely on are designed for flat bars, such that they will be too far apart to hang ...
6
votes
2answers
124 views

Teams in the Age of Specificity

Specificity, periodization, power meters - training for competitive cycling has changed a lot over the last few years. I am wondering about the effects of the movement towards training alone on ...
9
votes
2answers
3k views

When Should I replace the rotors on disk brakes?

I've probably done about 20k on the rotors I bought the bike with. They still work fine, but are visibly worn and slightly grooved from me not replacing the pads soon enough a few times. How do I ...
6
votes
2answers
433 views

At what point does one need to replace a chain ring on a mountain bike?

The large chainring on my mountain bike is missing a number of teeth on one side (apparently the side I like to go over rocks on). Is it harmful to the drivetrain to ride without these if I'm not ...
2
votes
2answers
769 views

Fork replacement for SR Suntour 29er

I ride pretty aggressively cross country and trail in colorado, and occasionally will go to the bike park and do some jumps. I recently bought a specialized hardrock 29er for my wife, who's a novice ...
0
votes
0answers
30 views

Problems shifting under load [duplicate]

I've spent hours with my bike on the stand. On the stand: it performs great. When I ride, I can cause the rear gears to shift just by changing how hard I pedal (the harder i pedal, the higher up on ...
6
votes
2answers
484 views

Tips for getting sponsored as an individual racer?

I'm currently racing a state XC MTB series and will be moving up to Cat. 2 next year. As part of my goals, I'd like to get some sponsorship for the 2014 season. I have a few questions about this ...
2
votes
1answer
253 views

Derailleur problems - rear mech slipping forward

I have been riding my Trek Fuel Ex 8 for a few years now, and as I have improved, I have been attacking more challenging terrain. I have started to notice a problem in my rear mech - the link arm ...
6
votes
2answers
12k views

How to remove rust from gears?

I have a 2 year old Diamondback bike with gears that have already rusted while living in the desert southwest. I'm not sure how or if they can be cleaned. Also, was something I should have done to ...
2
votes
5answers
1k views

how do i stop my Formula disk brakes from squealing

I have seen a number of posts about stopping discs from squealing, but mine don't always squeal, when the squealing starts it doesn't stop (as if something has worn off) and it's not worn out pads. ...
1
vote
0answers
34 views

what is the “best” indoor trainer [closed]

I know this is subjective and open to personal preference but I was wanting to know, which are the most recommended indoor trainers on the market today? I want one that is quiet and has built in ...
1
vote
1answer
187 views

Trek 6500 rear derailleur

I am rebuilding a Trek Mountain Bike model 6500 built in 2005. I don't see a model number on the Shimano Deore rear 8 speed derailleur that needs replacing. Is there a hidden model number somewhere ...
3
votes
1answer
84 views

rebuilding/frankenbike query

My son (teenager) has a second-hand Zombie bmx style bike - it's designed for kids, but as far as I can see the frame size is the same as any bmx. It needed a bit of messing around with, I've already ...
2
votes
2answers
274 views

Chain Slippage on MTB

This is my first time posting on this site so bear with me. I've got a 2009 Fuji Tahoe Comp 29er MTB with upgraded SRAM x.7 components and I'm having a couple issues. It is currently set up as a 1x9 ...
0
votes
1answer
151 views

Disk Brake or V Brake [duplicate]

I am willing to buy a new mtb.But i am totally confused about which brake to choose.I want to do daily communication by my mtb. and also often want to do stunts.in this circumstances which kind of ...
1
vote
1answer
757 views

Compatible heart rate sensors for CC-RD420DW

I purchased a bike computer about a couple of months back; which is a Cateye CC-RD420DW. Now this computer is supposed to provide a cadence and a heart rate monitoring, but the heart rate sensor is ...
0
votes
1answer
606 views

Full carbon fiber 29er suspension mountain bike from AliBaba [closed]

Does anybody have any experience with this bike? Full carbon fiber 29er suspension mountain bike with Deore XT 30 speed groupset I'm looking to buy my first expensive mountain bike and trying to ...
4
votes
3answers
3k views

How easy are Parabolic v. Standard Rollers to use?

I cycle a track bike and want to do some training over the winter. After a bit of research I've decided to go with rollers. I haven't used them before but I'm sure with a bit of perseverance I'll get ...
-1
votes
1answer
284 views

What kind of bike is this?

Any info on the make, style, similar bikes, where to buy etc would be very much appreciated, thanks....
1
vote
1answer
92 views

Are road cranks less strudy than comparatevely priced MTB cranks?

Road bikes are built to face different challenges than MTBs. Does this lead to difference in the crank strenght versus weight optimization? Will road cranks tackle to the occasional bump onto a stone ...
1
vote
1answer
1k views

How tight should a threaded BB be?

I have an english-thread, octalink Shimano bottom bracket, and a new frame. The frame has been faced before painting. I am not sure the BB is compatible with the frame. When trying to install the ...
2
votes
3answers
265 views

Treacherous ride - top half of fork points backwards, but the bottom points forward

I have a Kent Glendale with dual front suspension. The top half of the fork is turned around so the right shock was installed into the left stanchion and vice-versa. and I cannot figure out how to ...
5
votes
2answers
1k views

(Automatic Bike Project) amount of torque required to change gears?

I am planning to build an electronically controlled automatic bike transmission for my senior design project. I'm personally more of an electrical guy, so dealing with the mechanics is somewhat new to ...
4
votes
4answers
788 views

How long should pedals last?

I use cheap flat pedals, aluminum or plastic. They lasts about a year (1K-2K kms) before dying (cracking noises at each stroke). I don't mind paying US$10 each year, but it hurts my eco-heart: I want ...
1
vote
2answers
448 views

Is it cost efficient to Convert a Huffy Mens mountain bike to a road bike like the one I rented at Orange Peel in CO?

While on vacation in Steamboat Springs CO I fell in love with a road or trail bike I rented and so did my family. We road for miles on a trail and it was great. I want to convert the mountain type ...
0
votes
1answer
487 views

What are the standard shifter designs and mechanisms? [closed]

What are the standard shifting methods? I only know the shifting dial on flat bars and the old fashioned levers on ten speeds. I'm not asking about when to use a particular gear but the mechanics of ...
6
votes
2answers
849 views

Suspension setting for slippy and steep uphill

Normally one locks or sets both suspensions to a really hard setting to not loose to much force while going uphill. I'm however having problems on steep passages, as my front wheel lifts off the ...

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