IPB

Welcome Guest ( Log In | Register )



 
Reply to this topicStart new topic
Help! DK Intervol needs to go on a diet.
DHennet
post Nov 7 2010, 07:30 PM
Post #1


A Pro
*****

Group: Track Management
Posts: 684
Joined: 14-November 08
From: Virginia Beach, VA
Member No.: 18,669



Please help me put my sons DK Intervol on a diet. We've been into racing for years and I'm down with building race bikes, but I need help with his 18" park bike. I look at J&R and Dan's and can't really tell if what I'm looking is what I need for this little bike.
Throw me some suggestions with vendor, part number, whatever I need. I'm looking for forks, bars, stems, seat, etc. Is there a stock wheelset in 18" that's light?
Thanks-
Dan
Go to the top of the page
 
+Quote Post
D
post Nov 9 2010, 09:13 AM
Post #2


Expert
****

Group: Members
Posts: 377
Joined: 17-May 05
From: ATL
Member No.: 6,340



QUOTE (DHennet @ Nov 8 2010, 01:30 AM) *
Please help me put my sons DK Intervol on a diet. We've been into racing for years and I'm down with building race bikes, but I need help with his 18" park bike. I look at J&R and Dan's and can't really tell if what I'm looking is what I need for this little bike.
Throw me some suggestions with vendor, part number, whatever I need. I'm looking for forks, bars, stems, seat, etc. Is there a stock wheelset in 18" that's light?
Thanks-
Dan



For an 18" bike? I'm not sure how different from a 20" most of the parts would be apart from the wheels, frame and fork. You would save some weight going with a Ti spindle, that would be pretty noticeable right away. Pivitol seat and post would save a bit of weight, I would bet the bars that came stock on the DK are hi ten so you could save some more weight by getting some butted 4130 bars to replace them. A lighter stem maybe? Also, you might want to look into getting some of the kevlar beaded tires, those make a BIG difference in how the bike feels. Some guys go crazy with the weight thing and use stump posts, ti everything, etc. but it's not all that necessary.

But honestly at 23 pounds stock the bike is pretty light already.
Go to the top of the page
 
+Quote Post
DHennet
post Nov 9 2010, 09:40 AM
Post #3


A Pro
*****

Group: Track Management
Posts: 684
Joined: 14-November 08
From: Virginia Beach, VA
Member No.: 18,669



QUOTE (D @ Nov 9 2010, 10:13 AM) *
For an 18" bike? I'm not sure how different from a 20" most of the parts would be apart from the wheels, frame and fork. You would save some weight going with a Ti spindle, that would be pretty noticeable right away. Pivitol seat and post would save a bit of weight, I would bet the bars that came stock on the DK are hi ten so you could save some more weight by getting some butted 4130 bars to replace them. A lighter stem maybe? Also, you might want to look into getting some of the kevlar beaded tires, those make a BIG difference in how the bike feels. Some guys go crazy with the weight thing and use stump posts, ti everything, etc. but it's not all that necessary.

But honestly at 23 pounds stock the bike is pretty light already.


Thanks for the info. I imagine it probably is a decent weight for a stock park bike, but it's almost twice the weight of his race bike! When you think about it, it's almost half of what he weighs. So yeah, I'll start with a new seat and bars and see where that gets us.

Thanks again.
Go to the top of the page
 
+Quote Post
Cook Bros Seeker
post Nov 9 2010, 01:30 PM
Post #4


A Pro
*****

Group: Members
Posts: 1,010
Joined: 14-March 07
From: Wantagh, NY
Member No.: 10,889



My son has the same bike and he races. His race bike is a custom Podium that weighs around 13.5 lbs; the street bike is a lot heavier. The Intervol is the only all chromo 18" street bike and is one of the lightest. Powers bike shop had a pair of 18" wheels with profile hubs that would lighten things up. The cranks, BB, and tires would make a big difference. Problem is there does not appear to be much of a choice in 18" tires. Let me know what you end up doing; maybe I can do the same.
Go to the top of the page
 
+Quote Post
Jradical
post Nov 9 2010, 04:37 PM
Post #5


Expert
****

Group: BMX Industry
Posts: 226
Joined: 27-May 08
From: SW Ohio
Member No.: 15,985



DK makes the Alpha fork in an 18" version....it is .75 pounds lighter than the stock fork. My kid noticed a huge difference when we put this on his 18" bike.
Go to the top of the page
 
+Quote Post
DHennet
post Nov 10 2010, 02:57 PM
Post #6


A Pro
*****

Group: Track Management
Posts: 684
Joined: 14-November 08
From: Virginia Beach, VA
Member No.: 18,669



QUOTE (Jradical @ Nov 9 2010, 05:37 PM) *
DK makes the Alpha fork in an 18" version....it is .75 pounds lighter than the stock fork. My kid noticed a huge difference when we put this on his 18" bike.


Thanks. I didn't know DK made an upgrade 18" fork. They're a lot cheaper than the S&M too! I think to start I'm going to remove the heavy unused gyro, swap out the seat and post for a pivitol seat and post, and swap out the forks. That should help quite a bit. Does anybody know off hand who makes a lite 40mm ish 1 1/8 stem?
Go to the top of the page
 
+Quote Post
irodetoday
post Nov 10 2010, 07:25 PM
Post #7


A Pro
*****

Group: Members
Posts: 943
Joined: 23-July 09
From: Pittsburgh, PA
Member No.: 22,878



Dan,
I rebuilt a S&M Mini Cobra 16" for Lukas.
Stock complete it was 26.3#.
Now 17.7#
The 8 plus # is huge to a kid who weighs 55#
We replaced everything but the full chromoly S&M frame...even the fasteners are Ti.

Heres some of what you can save in grams by replacing stock spec:

Fork: Supercross Pro BMX Fork=340g.........they even make the SLT in 18"
Seat/post: Eastern Pivotal/Thermalite=527g
Pedals: JIS plastic=279g
Stem: Eastern Deseptikon=93g
Crank Arms: Profile Mini Mag 145's=220g
BB/bolts: FSA Ti/Ti boltls=156g
Sprocket: Kink Sound=156g
Bars: Morphine Industries Helium 6.5" rise=390g
Alloy nipples and axel nuts= 170g
Tires: Kenda Kontact=420g
Remove Gyro/tabs/cables=184g

Bars,tires, and seat/post will be your "Best Bang For Buck" changes.

I weighed out each component/savings so let me know if you need anymore details.

Mike

This post has been edited by irodetoday: Nov 10 2010, 07:26 PM
Go to the top of the page
 
+Quote Post
DHennet
post Nov 11 2010, 08:00 AM
Post #8


A Pro
*****

Group: Track Management
Posts: 684
Joined: 14-November 08
From: Virginia Beach, VA
Member No.: 18,669



Perfect Mike, Thanks. I was hoping you would see this thread when you got home.
Go to the top of the page
 
+Quote Post
Cook Bros Seeker
post Nov 11 2010, 08:37 AM
Post #9


A Pro
*****

Group: Members
Posts: 1,010
Joined: 14-March 07
From: Wantagh, NY
Member No.: 10,889



QUOTE (DHennet @ Nov 10 2010, 09:57 PM) *
Thanks. I didn't know DK made an upgrade 18" fork. They're a lot cheaper than the S&M too! I think to start I'm going to remove the heavy unused gyro, swap out the seat and post for a pivitol seat and post, and swap out the forks. That should help quite a bit. Does anybody know off hand who makes a lite 40mm ish 1 1/8 stem?


I put a Colony flatland stem on my daughter's 18" bike. It's very light and comes in few colors.
Go to the top of the page
 
+Quote Post

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Lo-Fi Version Time is now: 31st October 2014 - 02:00 PM





This Space
Respectfully Donated
Stay Strong Stephen Murray

Support Vintage By Using These Links For Your BMX Travel NO priceline hotel cancellation or change fees