Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Recreational Cyclocross and Gravelbiking This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 04-07-11, 11:42 AM   #1
Ak99654
Junior Member
Thread Starter
 
Join Date: Apr 2008
Bikes:
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why is my San Jose so heavy?

I weighed my Bianchi San Jose... ~25 lbs stock. I'm curious whether it is sensible to try to make this bike lighter, or whether a light bike starts with a lighter frame from the get go. In other words, if I only want to spend about $300--

a) sell this bike to fund an aluminum replacement— how much lighter would it really be?

b) new wheels— how much lighter would it really be?

c) new cranks, fork, etc.— how much lighter would it really be?

d) suck it up because of course it's going to be heavy— it's made out of metal!

Thanks
Ak99654 is offline   Reply With Quote
Old 04-07-11, 12:18 PM   #2
flargle
Senior Member
 
Join Date: Jul 2007
Bikes:
Posts: 2,119
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
You'll never get around the fact that the frame and fork are (by today's standards) heavy.

A pair of well-built light wheels is never a waste of money IMHO. Check out the Williams System 19.
flargle is offline   Reply With Quote
Old 04-07-11, 12:38 PM   #3
mulveyr 
Senior Member
 
mulveyr's Avatar
 
Join Date: Feb 2010
Location: In the wilds of NY
Bikes: Box Dog Pelican, Raleigh Sojourn, Specialized Secteur, 1991 Cannondale tandem
Posts: 1,480
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Quote:
Originally Posted by Ak99654 View Post
I weighed my Bianchi San Jose... ~25 lbs stock. I'm curious whether it is sensible to try to make this bike lighter, or whether a light bike starts with a lighter frame from the get go. In other words, if I only want to spend about $300--

a) sell this bike to fund an aluminum replacement— how much lighter would it really be?

b) new wheels— how much lighter would it really be?

c) new cranks, fork, etc.— how much lighter would it really be?

d) suck it up because of course it's going to be heavy— it's made out of metal!

Thanks
The first question in these sorts of threads should really be, "Is losing a couple pounds on the bike going to make any difference whatsoever in the way I ride?"
__________________
Knows the weight of my bike to the nearest 10 pounds.
mulveyr is offline   Reply With Quote
Old 04-07-11, 01:26 PM   #4
amillhench
TXHC
 
amillhench's Avatar
 
Join Date: Mar 2008
Location: Heights, TX
Bikes:
Posts: 308
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mulveyr View Post
The first question in these sorts of threads should really be, "Is losing a couple pounds on the bike going to make any difference whatsoever in the way I ride?"
No, but it can be fun. With that said, $300 dollars isn't going to lighten much. Maybe a new carbon fork? My Ritchey WCS cross fork weighs 425g. That could shave a pound or so off if you had a steel fork. If you want to go light, start with a different frame.
Wheels are also a good place to start, but unless you just love the frame, start over for light weight.

Whatever you do, do not go to weight weenies or buy a digital kitchen scale unless you are wealthy.
amillhench is offline   Reply With Quote
Old 04-07-11, 01:49 PM   #5
GrayJay
Senior Member
 
GrayJay's Avatar
 
Join Date: Sep 2009
Location: EagleRiver AK
Bikes:
Posts: 1,230
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
I would estimate that at most, switching (same components) to a compable priced alu frame would probably save no more that 2.0#. The rest of the parts that this is built from must be really, really heavy. Steel is an entirely competitive frame material in the hands of a good framebuilder. I would work on upgrading your heavy components first, you can always re-use the new components on another frame if you are dissatisfield with the end-results with the SanJose.
GrayJay is offline   Reply With Quote
Old 04-07-11, 04:38 PM   #6
meanwhile
Senior Member
 
meanwhile's Avatar
 
Join Date: Jun 2008
Bikes:
Posts: 4,033
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Do you know the weigh to San Jose?
I've been away so long. I may go wrong and lose my way.
Do you know the weigh to San Jose?

(Sorry.)

Anyway... be careful when trying to tweak a bike for weight. The components that offer the "best" combination of low weight and low cost are often the worst available in other ways. Do you want wheels that lose power during sprints because they're not rigid enough? Fork judder? Piles? Bicycle cooties?

If you want to spend money sensibly on performance then the place to start on a crosser is usually the tyres.

(I confess I have no idea how much my crosser weighs. It feels like almost nothing to me, but I weigh 230lbs and my handweights weigh more than most bicycles. Something I remind myself of whenever I got overtaken on a hill by some guy with arms like pipecleaners.)
meanwhile is offline   Reply With Quote
Old 04-07-11, 04:43 PM   #7
meanwhile
Senior Member
 
meanwhile's Avatar
 
Join Date: Jun 2008
Bikes:
Posts: 4,033
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by GrayJay View Post
I would estimate that at most, switching (same components) to a compable priced alu frame would probably save no more that 2.0#. The rest of the parts that this is built from must be really, really heavy.
Most "heavy" bikes are heavy all over. The really-worth-lightening exceptions are very rare and exotic - I knew someone who had the original Kona Hei Hei (a titanium version of the Lava Dome, the first production bike to combine a sloping downtube, straight forks, etc to create the classic modern hardtail.) He managed to get the thing down to 17lbs as a singlespeed - then had to add weight back on, because the bike was too light to be stable off road.
meanwhile is offline   Reply With Quote
Old 04-07-11, 04:55 PM   #8
thenomad
Riding like its 1990
 
thenomad's Avatar
 
Join Date: Nov 2006
Location: IE, SoCal
Bikes:
Posts: 3,775
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
just add drillium
thenomad is offline   Reply With Quote
Old 04-07-11, 07:49 PM   #9
B17
Senior Member
 
Join Date: Apr 2005
Bikes:
Posts: 282
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Ak99654 View Post
I weighed my Bianchi San Jose... ~25 lbs stock. I'm curious whether it is sensible to try to make this bike lighter, or whether a light bike starts with a lighter frame from the get go. In other words, if I only want to spend about $300--

a) sell this bike to fund an aluminum replacement— how much lighter would it really be?

b) new wheels— how much lighter would it really be?

c) new cranks, fork, etc.— how much lighter would it really be?

d) suck it up because of course it's going to be heavy— it's made out of metal!

Thanks
If you have the disc frameset, that fork is heavy even for steel. I have that frameset (not yet built up) and will use a much lighter Tange steel fork that I already own because the non-tapered blades on the original look cheap. I like the tapered blades of the Tange, Kelly and Vicious forks (I don't mind including aesthetics in my list of reasons to build a bike up a certain way) and wasn't ever going to use the disc option. Without weighing, I'd estimate I saved at least 1.5#, and I was less than halfway to your $ limit. I wanted a steel frame and fork, but you could probably find a cheaper carbon fork for less than the $120 or so I paid for the Tange.

All that said, $300 won't lose you a lot of weight, and yeah, wheels are the best place to start anyhow.
B17 is offline   Reply With Quote
Old 04-07-11, 10:46 PM   #10
Ak99654
Junior Member
Thread Starter
 
Join Date: Apr 2008
Bikes:
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks all

To the first question, yes, it would make a bit of a difference; I ride it about 5 days a week and raced it a few times during cross season. I had a Kona Jake that was stolen; acceleration was more fun on the lighter bike. Nobody's pointed out an obvious major upgrade, though, so I think I'll just leave it as it is. Learn to be thankful for what I've got, right?
Ak99654 is offline   Reply With Quote
Old 04-07-11, 11:10 PM   #11
Andy_K 
Senior Member
 
Andy_K's Avatar
 
Join Date: Jan 2008
Location: Beaverton, OR
Bikes: 2013 Kona Jake, 2015 Kona Jake the Snake, 2008 Kona Major Jake, 2013 Kona Jake the Snake, 2006 Kona Kula, 2012 Ridley Excalibur, 2001 LeMond Buenos Aires, 1984 Pinarello Gran Turismo, 1982 Trek 614, 1978 Austro-Daimler, 1987 Pinarello Montello
Posts: 9,149
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 293 Post(s)
Quote:
Originally Posted by Ak99654 View Post
To the first question, yes, it would make a bit of a difference; I ride it about 5 days a week and raced it a few times during cross season. I had a Kona Jake that was stolen; acceleration was more fun on the lighter bike.
I agree with you on this point. Whenever this comes up, everyone seems to point out that measurable performance difference are negligible. That's probably true, but there's no question that you can feel the difference with a lighter bike and it feels better.

Light wheels are definitely something you can feel. I've found that forks and handlebars are often disproportionately heavy and cheap fixes.
Andy_K is offline   Reply With Quote
Old 04-08-11, 02:02 PM   #12
GrayJay
Senior Member
 
GrayJay's Avatar
 
Join Date: Sep 2009
Location: EagleRiver AK
Bikes:
Posts: 1,230
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
If they used any common sense in component selection, it shouldnt be 25#. From looking on the net, the San Jose came in several different configurations over several years. THe heaviest specificaiton I saw anywhere for one was in the 21-23# range which makes more sense for a fixie.
Try getting an accurate weight before you are too down on your Bianchi-SJ. From what I have read, it has a butted Chrome-Molly frame. The bare frame weight is probably right around 5-6# which still leaves majority of the weight due to components and plenty of room for improvements. Post some pictures of the existing components for advice on upgrading.

Last edited by GrayJay; 04-11-11 at 02:16 PM.
GrayJay is offline   Reply With Quote
Old 04-10-11, 06:16 PM   #13
thenomad
Riding like its 1990
 
thenomad's Avatar
 
Join Date: Nov 2006
Location: IE, SoCal
Bikes:
Posts: 3,775
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Whats the real weight? bathroom scale even?
thenomad is offline   Reply With Quote
Old 04-12-11, 03:57 PM   #14
Ak99654
Junior Member
Thread Starter
 
Join Date: Apr 2008
Bikes:
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Turns out my cheapo bathroom scale is off by 4 or 5 lbs. The bike does feel heavier than my geared aluminum cross bike (stolen), but looking at weights and prices, it doesn't look like any realistic improvement is going to materialize without spending a lot of money. A Kona Major One is only a couple pounds lighter, and that's with a scandium frame and carbon fork. Add me— 195 lb. 6'2" —a bike lock, etc., and the full on race bike is only 2% lighter. Thanks for the good advice; I'll keep it in mind if component replacements become necessities. For now, I'm pretty happy.
Ak99654 is offline   Reply With Quote
Old 04-12-11, 10:53 PM   #15
M_S
Senior Member
 
Join Date: Dec 2006
Bikes:
Posts: 3,693
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I raced my Volpe (close to the same frame) as a singlespeed. I had an OEM carbon fork from another bike I used for a while which dropped about a pound even though it was a heavyish itself having an aluminum crown and steerer. I used wheels that were maybe lighter than the really heavy Alexes that come stock on the San Jose, but not by much. Now that it's the off season I built some lighter wheels and it absolutely improves the feel of the bike way more than the fork change.

Sounds like you got a little dose of realism though. The San Jose is a fun bike, might as well enjoy it for what it is.
M_S is offline   Reply With Quote
Old 04-14-11, 05:53 PM   #16
rfomenko
sic transit gloria mundi
 
rfomenko's Avatar
 
Join Date: Aug 2007
Bikes:
Posts: 216
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
First tires then wheels. Everything else matters very little unless you race in the mountains. The rotational weight is where well over 90% of the savings reside.
rfomenko is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 07:57 AM.