Stevegor's NEED FOR SPEED
07-10-08 | 09:22 PM
#1
Thread Starter
Senior Member
Joined: Dec 2006
Posts: 2,117
Likes: 2
From: Oz
Bikes: lots... even a Raleigh twenty !!!
Stevegor's NEED FOR SPEED
Always loved going fast on bikes, especially down mountains or pacing behind trucks and buses, so I was wondering......my R20 has an 8 spd SA hub in 451 rims with a 48t chainring and a 25t rear gog, 8th gear is quite tall, what if I installed that spare 58t chainring I have and get a friend to pace me behind a car or motorbike, I wonder what speed I can achieve?
Don't worry about me not being able to turn the cranks with such high gearing, my best pacing speed behind a bus on a flat road is 78.5kmph and I needed more gear inches.
Don't worry about me not being able to turn the cranks with such high gearing, my best pacing speed behind a bus on a flat road is 78.5kmph and I needed more gear inches.
07-10-08 | 10:23 PM
#2
The Legitimiser
Joined: Jul 2005
Posts: 4,849
Likes: 6
From: Southampton, UK
Bikes: Gazelle Trim Trophy, EG Bates Track Bike, HR Bates Cantiflex bike, Nigel Dean fixed gear conversion, Raleigh Royal, Falcon Westminster.
Get yourself a 19t cog as well, and really break some records....
07-11-08 | 12:33 AM
#3
Thread Starter
Senior Member
Joined: Dec 2006
Posts: 2,117
Likes: 2
From: Oz
Bikes: lots... even a Raleigh twenty !!!
07-11-08 | 04:45 AM
#6
Raleigh20 PugFixie, Merc
Joined: Sep 2004
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From: London UK
Bikes: 1982 Raleigh Twenty Hotrod Fixie; 1984 Peugeot Premier Fixie, 2007 Merc Lightweight folder
12 on the back; 62 on the front, with Schlumf Speed-drive in the Bottom bracket.
ZOom ZoOM!
ZOom ZoOM!
__________________
My Raleigh Twenty site | foldr : A flickr pool | #6460, #5632 & #3407 on the fixedgeargallery
My Raleigh Twenty site | foldr : A flickr pool | #6460, #5632 & #3407 on the fixedgeargallery
07-11-08 | 09:19 AM
#7
Thread Starter
Senior Member
Joined: Dec 2006
Posts: 2,117
Likes: 2
From: Oz
Bikes: lots... even a Raleigh twenty !!!
07-11-08 | 11:09 AM
#9
Senior Member
Joined: Jun 2008
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From: angus scotland
Bikes: Grifter BSA 20
Ive done an an average speed of over 40 mph for 5miles flattish road
also done an average of 21mph for 53miles to Aberdeen. Not very flat. reved out in top going past Stonehaven.
But that was on my Bob Jackson road bike. With a 52 X 13 with 700c size sprints and tubs
that bike flew and I was a little bit fitter then
Have seen 38mph on my grifter on the beach
thats a similar bike to the shopper
also done an average of 21mph for 53miles to Aberdeen. Not very flat. reved out in top going past Stonehaven.
But that was on my Bob Jackson road bike. With a 52 X 13 with 700c size sprints and tubs
that bike flew and I was a little bit fitter then
Have seen 38mph on my grifter on the beach
thats a similar bike to the shopper
07-11-08 | 12:08 PM
#10
The Metropolis, UK
Joined: Aug 2007
Posts: 2,353
Likes: 2
And in Snafu's case +20kmph 
SNAFU21= SUPER NANOCHARGED AUTOMATED FARTING UNIT (21 HORSEPOWER)
PFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFT
SNAFU21 TRYIONG OUT 1ST PETROL/FART POWERED HYBRID BEFORE THE FOLDING BIKE PROPULSION SYSTEM IN 2001 WAS PERFECTED USING A SMALLER CAN OF TESCO VALUE BAKED BEAMS 420G CAN
SNAFU21= SUPER NANOCHARGED AUTOMATED FARTING UNIT (21 HORSEPOWER)
PFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFT
SNAFU21 TRYIONG OUT 1ST PETROL/FART POWERED HYBRID BEFORE THE FOLDING BIKE PROPULSION SYSTEM IN 2001 WAS PERFECTED USING A SMALLER CAN OF TESCO VALUE BAKED BEAMS 420G CAN
Last edited by mulleady; 07-11-08 at 12:15 PM.
