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34

Warranties exist to protect you, the consumer, against defects in materials or workmanship, not against deliberate damage. The purpose of a bike lock is to help avoid your bike being stolen, so if it has prevented a theft of the bicycle then it has done its job well. Perhaps you can ask Decathlon and report back to us by answering your own question for ...


22

If the bike has been hanging rather than sitting with weight on the tyres (and hence damaging the sidewalls), there is a good chance the tyres are still ok. You can check the tyres by going around and looking for hairline cracks in the rubber and feeling if the rubber is brittle/flaky. If they look ok then go ahead and inflate them and recheck the ...


17

Some locks offer "insurance" where you can get a payout if their lock fails to protect your bike. Of course there are caveats like "lock must be used" and "thief must leave lock behind" (for inspection for weakness) and so on, and even "lock must be registered with company" The only places that can tell you details would be the supplier and the ...


16

From personal experience, I'd say a larger-than-usual hole in the tire could have these undesireable side-effects: The tube might get a bit exposed, and the day-to-day rolling over the hole might wear it down until the tire eventually flats out. Chemical aggresion from road grime or mud could also be involved. The fabric of the tire might get damaged to the ...


15

Generally, if you are using an inner tube in the tire, you should replace the tire if there is more than a 2 millimeter cut in the tire casing. Not in the rubber, mind, but it the threaded cloth casing that your rubber bits are laid on to. I personally err on the side of replacement rather than risking a serious injury from a blow out at a bad time, so I ...


12

Here's how I would fix the problem. This could all be done by somebody with basic tools and basic knowledge. Get a quill-threadless stem adapter and a new stem. This will allow you to fit the new stem to the handlebars without removing anything from the bars. The old stem can be removed destructively by removing the cinch bolt and prying the thing apart ...


12

The Giant Reign is a long travel 'enduro' bike that is designed to be ridden down steep technical trails, not pedalled down road/fire trail. It's most likely that changing to a 39-53 will not work as the inner chainring will catch the chain stays, and even if it did work, it would compromise the bike in technical terrain, increasing the chances of '...


12

It still doesn't hurt to contact the manufacturer, but do not talk to as if they owe you anything. Do an open inquiry and see if there's anything they can do. Companies can actually do things out of the ordinary and isn't only bound by warranties. Maybe they'll want your lock back to examine how it survived a theft and give you a replacement.


11

Generally, you repair tubes, not tires. From your last sentence, it sounds like you are indeed talking about the tire. As it is with the tube, the real answer is "Size Matters". In this case, both the size of the hole and the size (okay, type) of the tire. If I was looking at damage to a road tire "slick", the hole you describe would likely having me change ...


10

There is a trick: The pads need some "persuasion" to get past the spring clip. Here is a side view of the pads and the spring clip showing how the pads nest within the steel clip. This should make obvious why a little force is required to get the pads to move fully into the caliper. After much frustration, I finally looked at the pad and the clip in that ...


10

What you have now is a bit of a hack, but it could be good temporarily so long as you don't over-stress things somehow, and if you can tolerate the lower handlebar. (Note, I haven't seen how your stem is cracked and so can't tell how bad the situation is.) It's not likely to fail catastrophically (so long as you're not hot-dogging on the thing) but the ...


9

When you remove all the thorns very carefully you could keep using the tire. Unfortunately this might be some hassle with 30+ thorns and you can not be a 100% sure that you really have removed all of them. Also some may have broken off in a way that you see the remains from neither inside nor outside but the remains may be pushed further inside after some ...


9

tl;dr: Yes, you can pretty much buy any seat except some rare/expensive racing or classic leather seats. Explanation: As long as your seat attaches by two parallel rails that are 44mm apart (which is 95% of seats), then you can replace it with another seat that also attaches by the rails. In case you don't do metric, 44mm is just under 1.75 inches measured ...


9

You should not have to replace the entire crank-set. In general, a 'mid-compact' 52/36 crank will have a 110mm BCD spider, which allows 50 and 34 tooth rings to be installed. The Ultegra FC-R8000 crank on the Canyon comes in 53-39, 52-36 and 50-34 versions, so you will be able to get the smaller rings for that specific crank. The front derailleur may need ...


9

This is often called "the slippery slope of knock-on upgrades" which can get expensive quickly. There are two simple and relatively cheap upgrades to try. Replace the brake pad inserts with modern compound Kool Stop. They will brake better than the original ones, which may also be a bit hardened with age. There will be a model that fits your brake pad ...


9

I agree with Andy P. If the tires are hanging, then I would check the side walls for cracks. If all is good, then I would inflate to see what happens! If they do take air I would get new tubes before taking the bike out of walking distance, because I do not trust old tubes.


9

There are ways tires get damaged other than by having weight on them. For example, ozone and ultraviolet light can cause dry rot. If the tires were stored in a cool area, out of sunlight, and not near any electrical equipment, they're likely fine. If, however, they display cracks, or are brittle, or were stored in sunlight or near electrical equipment, I'...


8

Always BEST to just replace the tire, but... I have ridden my tires with a gash of an inch or longer. I couldnt recommend it to everyone (legal issues) but I do it all the time. I take an old tube, cut about a 2 inch section out of it (so you have a 2 inch long tube, not just a patch), wrap duct tape around it then duct tape that onto the inside of the tire. ...


8

Shimano seems to keep a lot of their documentation online, you can find your specific manual there. For example, the site gives this picture for DEORE XT RD-M8000 derailleur. Essentially, the chain needs to follow the shortest path between the two jockey wheels. When installed properly, the chain won't touch the plate at all. If it does you've routed ...


8

If you just want a reliable, more comfortable, more efficient and safer bike - just buy a new one. Upgrading older bikes (or even new bikes) requires and investment in time and money: learning about all the different standards in use and parts compatibility, buying special tools, scouring Ebay for parts etc. However, if that is your idea of fun then by all ...


8

If you are planning to ride the bike, replace the handlebar stem


8

Your best bet would be to contact the manufacturer for specifications or even replacement parts. Failing that, your next best thing should be to measure/learn parameters of your current shock, and then finding another ones that matches closely these parameters. What you need to measure/find out are: Eye-to-eye length Stroke length Mounting hardware used to ...


7

When I fixed up my old bike it had a typical BB with fixed and adjustable cups. I planned on replacing with a cartridge BB so I didn't want to get the special tools just for a removal operation. Though I did get the special toothed socket needed to install the new BB (a cheap version online since I'll only use it a few times). Using a slot screwdriver, or ...


6

I had the same problem (48x38x28 chainset). It turned out that MF-TZ21 is actually not a 'cassette', but a 'freewheel'. Your options for that are very limited: In the UK, Raleigh is distributing a 7 speed 13-24T model for less than 10 quid. SunRace is still producing 7 speed freewheels, but the closed-spaced 12-?? model wasn't distributed in the UK: Check ...


6

The 14/28 is the number of teeth on the smallest and largest cog of the cassette. From your description you want to make at least the second number smaller, possibly the first number. As long as your replacement says that it's Shimano compatible (and 7 speed), you should be fine. Count the teeth on the cog that has the most teeth that you actually use......


6

If you search cantilever brake parts you should find what you need. They are sometimes referred to as threadless post brake pads.


6

Can I use a 9 speed shifter with a 7 speed drivetrain, with good shifting and without needing complex adaptations? Kinda, maybe, sort of... its complicated You could use a Shimano 7 speed derailleur with a 9 speed shifter, if you also used a wheel with a 9 speed cog. The 7 and 9 speed Shimano derailleurs use the same derailleur ratio of 1.7 (amount of ...


6

If you have friction shifters, they don't really care what kind of rear derailleur you put on them -- just that they can pull enough cable to move the rear derailleur from the highest gear to the lowest gear. If you're not concerned with having a matching vintage set, I'd suggest pop picking up something like a Shimano Altus or Acera rear derailleur. ...


6

I would suggest replacing the inner as well as all the outers. If the inner is frayed at all, you will not be able to rethread it. The benefits of a new cable are much better shifting, to the point cables are considered a consumable by many riders - just like tires and brake pads. Shifter cables are very generic and cheap - as low as $5 online for a set. ...


6

I did some quick googling to double check you have a QR fork, which it appears you do. Thru-axles on trail bikes were uncommon then but not nonexistent. You should double check. Wheel: You need any 26"/559 MTB disc wheel with a QR axle, which is a broad category. Even one from a different genre such as dirtjump/DH wheel would be physically compatible with ...


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