T.R | Title | User | Personal Name | Date | Lines |
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1613.1 | it's in the tires | WFOV11::SISE | | Fri Jun 29 1990 16:43 | 16 |
| What tires do you have now? Off road tires with the knobs and
low pressures have a fairly high rolling restance.
You can get high pressure street tires for your Mt. Bike. Some
of the "City Bike" tires are sort of OK for informal use on both
street and paths in the woods.
They do make "dual-purpose" tires too.
Also check your brakes to see if they drag.
I hope this helps.
John
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1613.2 | | OLDTMR::BROWN | | Fri Jun 29 1990 16:46 | 5 |
| Probably a number of factors:
Wide tires, low tire pressure, heavy wheels, heavy frame, aerodynamics
of a boxcar... Mountain bikes make lousy road bikes and road bikes
make lousy mountain bikes. I wouldn't pour money into trying to turn
one into another. lkb
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1613.3 | | WILKIE::LANDRY | | Fri Jun 29 1990 18:08 | 9 |
| Remember, when you're going uphill, you're carrying the weight
of the bike up the hill. A mountain bike weighs a lot more than
a road bike, so uphills are more work. (compensated for by much
lower gearing) The momentum that you carry from a downhill
doesn't get you too far up the next hill, even on a road bike.
A mountain bike has more rolling resistance so it's even worse.
chris
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1613.4 | Don't sell your road bike short | SX4GTO::BERNARD | Dave from Cleveland | Fri Jun 29 1990 19:24 | 8 |
|
Actually, a road bike can make a surprisingly decent off-road
bike, simply by shoehorning on a set of knobby tires. It may not
be just the thing for bushwacking or riding streams or washed-out
trails, but for the kind of offroading a lot of folks do- fire roads
and old railbeds- they can do great.
Dave
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1613.5 | Air and more air | MAIL::ALBERT | | Mon Jul 02 1990 13:27 | 14 |
| I also own a Bridgestone mountain bike. I use 40-45 pounds of
tire pressure for off-road, and you can really feel the difference
if you pump them up to 80 or so for pavement riding. I'd give that a
try first off, assuming that you've checked your brakes to make sure
they're not rubbing the rims when they shouldn't.
The rolling resistance of a fat tire is mostly what does you in, as
the other replies said. Short of converting to narrow rims and tires,
gravity will not get any friendlier.
Riding on pavement is for those bikes with funny handlebars anyway,
isn't it?
Tom
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1613.6 | My $.02 worth | LACV01::DAVIDSON | Have gun...will travel | Mon Jul 02 1990 13:47 | 27 |
| Ditto: ATB's ain't roaddies. They're better - :^)
Tioga makes a tire called "City Slicker" available in 1.5 which can
help the rolling resistance considerably. Pump these babies up to
65-80 lbs and you can roll easier. Ride will be rough as Hades...
Position on ATB's is usually more upright than roadies, this will cause
your hard earned momentum to rub off quicker.
Gears on ATB's are not close as a roadie. If the gear you are using
doesn't quite match your speed/cadence it can cause apparent loss of
power on hills. Exercise to get stronger legs will help some, knowing
the gears also will help - the old "ride smart" idea.
Make sure the cranks fit your leg length. Lots of ATB's come with 175
mm cranks which are great for low rpm leverage but not great for
maintaining 80-95 rpm cadence on the roads. Look at the possibility of
170 mm cranks if road riding is the main use of your scooter. Best
crank length can be checked on "fit kits" as I recall. Remember, a
good spin on the cranks goes a long way toward easing hill climb
trouble.
Hope my, slightly biased, ramblings help.
bob
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1613.7 | Thank You Everyone! | PONDER::WEBBER | | Tue Jul 03 1990 09:27 | 13 |
|
Thanks for all the information everyone.
Last weekend I went riding on some trails and had a blast...so I am
very glad I opted for the mountain bike instead of a hybrid or touring
bike.
I will experiment and see what best suits me...but I think one of the
best ways (as suggested) is to keep on riding thus building up my leg
muscles and strength.
Thanks again,
Sarah
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