Any thoughts on the bike brand 'Giant'?

modsandmockers

brat wrote: »

More nonsense. What do you know about bike tyre technology? You've already been told on another thread why bike tyres are as they are. They are very technologically advanced, possibly even more than car tyres.

Wrong.

Puncture resistance is not directly proportional to tyre cost. There are many other factors beyond your ken that come into play

Brat - I seem to recall you saying that any statement on this forum is worthless without any supporting evidence. My breath is bated.

brat

modsandmockers wrote: »

Brat - I seem to recall you saying that any statement on this forum is worthless without any supporting evidence. My breath is bated.

I did, but I see no need to further accommodate your desire to derail good cycling threads.

I will pm you adequate information to support my dismissal of your comments as soon as you pm me with some evidence to support your initial assertions.

Try these comments of yours for starters.

1. tyres are the most-neglected part of bike technology.
2. The most annoying part of any bike ride is the puncture,
3. the most expensive bike tyres come nowhere the quality of car tyres.

Now please leave this thread alone!

Keep_pedalling

brat wrote: »

I did, but I see no need to further accommodate your desire to derail good cycling threads.

I will pm you adequate information to support my dismissal of your comments as soon as you pm me with some evidence to support your initial assertions. Try these for starters.

1. tyres are the most-neglected part of bike technology.
2. The most annoying part of any bike ride is the puncture,
3. the most expensive bike tyres come nowhere the quality of car tyres.

Now please leave this thread alone!

The requirements of bike tyres are totally different those for cars. Le Tour riders have some of the most expensively shod bikes in the world but puncture resistance is not the priority for those bits of rubber, they are built to be light and have minimum rolling resistance.

Choosing a tyre for a round the world tour on the other hand requires a tyre that provides maximum comfort and a good level of puncture resistance. Riders why enjoy the rough and tumble of off road riding are switching to tubeless systems with built in self repair, as fixing a puncture in a wheel caked in mud is no fun.

It would be possible to make a bike tyre with the sort of puncture resistance you get on car tyres but they would be horrible to ride and make hard work of every turn on the cranks.

There are some very good tyres out there, but also lots of terrible ones mostly fitted to cheap bikes which have been blinged up with rubbish suspension forks, and lots of gears with the cheapest possible derailiers.

brat

Strider590 wrote: »

The thing with kids bikes is that as long as he doesn't trash it or leave it lying around to get stolen, it'll always sell for good money 2nd hand.
Same for womens bikes.....

When it comes to that time of the year where the father of the family wants to get everyone out on bikes, you can sell 2nd hand bikes for nearly as much as they cost new. A £200 womens or kids bike, 3 years old will probably sell for £150 on eBay.

We had the 20" and 24" Giant girls bikes. We had the 20" for 4 years and the 24" for 3 years - both girls used them until they grew out of them. They cost £199 each. They were used a lot, but well looked after, and I practically gave them away to a friend for his daughter for £70 each time.
His daughter still has the 24" but he sold the 20" for £70 after another three years.

I understand that Islabikes keep their second hand value really well. They are light too, which does make cycling more fun

modsandmockers

Keep_pedalling wrote: »

It would be possible to make a bike tyre with the sort of puncture resistance you get on car tyres but they would be horrible to ride and make hard work of every turn on the cranks.

There are some very good tyres out there, but also lots of terrible ones mostly fitted to cheap bikes which have been blinged up with rubbish suspension forks, and lots of gears with the cheapest possible derailiers.

When I bought my new bike (4-5 years ago) it came with Continental Sport tyres, and I was assured that they were amongst the best for general use. I had at least three punctures in the first eighteen months, despite covering well under 100 miles a month (exclusively on clean hard surfaces, and never in the gutter). With hub brakes and gears, that number of punctures is a serious pain in the neck, and my mileage has gone down to less than 100 a year. That is about to change, though, because my two oldest grandchildren are now both bike-riders and they are lucky enough to live in Milton Keynes, where cycling can still be fun.

As I explained in another thread, the motor industry is as interested as the rest of us in fuel efficiency, and tyre design is part of the equation. The idea that that a puncture-resistant tyre will be horrible to ride sounds like an easy excuse for the manufacturers to continue to offer poor-quality bike tyres.

brat

modsandmockers wrote: »

When I bought my new bike (4-5 years ago) it came with Continental Sport tyres, and I was assured that they were amongst the best for general use. I had at least three punctures in the first eighteen months, despite covering well under 100 miles a month (exclusively on clean hard surfaces, and never in the gutter). With hub brakes and gears, that number of punctures is a serious pain in the neck, and my mileage has gone down to less than 100 a year. That is about to change, though, because my two oldest grandchildren are now both bike-riders and they are lucky enough to live in Milton Keynes, where cycling can still be fun.

As I explained in another thread, the motor industry is as interested as the rest of us in fuel efficiency, and tyre design is part of the equation. The idea that that a puncture-resistant tyre will be horrible to ride sounds like an easy excuse for the manufacturers to continue to offer poor-quality bike tyres.

If you must, take this onto another thread. Stop spoiling other people's threads.

[Deleted User]

modsandmockers wrote: »

When I bought my new bike (4-5 years ago) it came with Continental Sport tyres, and I was assured that they were amongst the best for general use. I had at least three punctures in the first eighteen months, despite covering well under 100 miles a month (exclusively on clean hard surfaces, and never in the gutter). With hub brakes and gears, that number of punctures is a serious pain in the neck, and my mileage has gone down to less than 100 a year. That is about to change, though, because my two oldest grandchildren are now both bike-riders and they are lucky enough to live in Milton Keynes, where cycling can still be fun.

As I explained in another thread, the motor industry is as interested as the rest of us in fuel efficiency, and tyre design is part of the equation. The idea that that a puncture-resistant tyre will be horrible to ride sounds like an easy excuse for the manufacturers to continue to offer poor-quality bike tyres.

You can't draw any sensible conclusions at all from such a trivial amount of data. My bike has covered 42,000 miles and worn out umpteen tyres, and in my experience there's no rhyme or reason to punctures, they just vary at random. I've had up to 30 punctures in a year, but then perhaps one or two in other years. I've even had up to four punctures in the same day on more than one occasion.

Comparing them against car tyres is pointless, the circumstances are totally different. A bike tyre operates at about three times the pressure of a car tyre which will make it easier to press debris into it, and the additional rolling resistance of a thicker, harder tyre is negligible on a car compared with a bike.

armyknife

jack_pott wrote: »

You can't draw any sensible conclusions at all from such a trivial amount of data. My bike has covered 42,000 miles and worn out umpteen tyres, and in my experience there's no rhyme or reason to punctures, they just vary at random. I've had up to 30 punctures in a year, but then perhaps one or two in other years. I've even had up to four punctures in the same day on more than one occasion.

Comparing them against car tyres is pointless, the circumstances are totally different. A bike tyre operates at about three times the pressure of a car tyre which will make it easier to press debris into it, and the additional rolling resistance of a thicker, harder tyre is negligible on a car compared with a bike.

Maybe he's 'right' in that you can't put bike tyres on cars.

But no doubt an airline pilot would take him to task on how rubbish car tyres are.

fred246

I have used Schwalbe Marathon Plus for a few years now. I think they are very similar to car tyres in terms of puncture resistance. I use them for commuting as I need to get to work on time. I recommended them to a cyclist friend who couldn't stand them - far too heavy for him. You just have to decide what your priorities are.

armyknife

fred246 wrote: »

I have used Schwalbe Marathon Plus for a few years now. I think they are very similar to car tyres in terms of puncture resistance. I use them for commuting as I need to get to work on time. I recommended them to a cyclist friend who couldn't stand them - far too heavy for him. You just have to decide what your priorities are.

Shush, you'll upset MM and whatever you do don't tell him they do a hundred page catalogue full of tyres for different purposes; they even do small 20" tyres for solar powered challenge vehicles that are rated to 120 kmph and four of them will support a 600kg vehicle. Oh and they only weigh a couple of kilos each, so obviously not as good as car tyres.