2005 Iron Horse Heyah
- Thread starter The Kadvang
- Start date
Well, I'm curious if the BBQ at Redbones is still as good as it was the last time I was there around '96...oops sorry, having a happy Boston memory...
Awesome! Exactly what I wanted to hear. Thanks.dw said:
I'm sure that's true, but I've got to second OG's request and say that the more info available the better. All of us arm-chair engineers can enjoy why you've done what you did. For me, understanding the workings behind a bike can make the bike much more desirable. If your patents are protected and you're willing to share a detailed explanation that would be exciting.dw said:
The Mad Catz team bike weight is a little deceiving, especially in Sam's case. His bike is easily the lightest of the 3. He uses a Proto Boxxer, which uses an air spring. That probably saves 1 - 1 1/2 pounds right there. Plus he has a lot of Ti bolts, 4 (Ti) rotor bolts per wheel, carbon bars etc. I'm not saying the bikes aren't light, but Sam's is a big exception...dw said:
Benton!Benton said:
What the sh!t are you doing on MY site? If you're really curious, I've got a great book on motorcycle suspension design that lays out the principles. Besides, even though he makes it sound all fancy-pantsy, the truth is he just blew his nose in a napkin and called it a linkage geometry. That's the truth. I've seen the napkin.
First run down a hill with that kind of height, you'll probably hate it and be worried for your pedals/crank arms. After the second run, you'll love it. You can corner so much harder when the BB is down that low, it really makes a world of difference.MMcG said:
DoubleDown said:
Actually, I was talking about Bryn's bike. Sam's bike is unreasonably light, I dont know the exact # as of today, but the weight is closer to the mid 30's than the high 30's like Bryn's. Bryn is a bruiser though, so he need the heavier and stronger components. FYI, the Iron Horse / MadCatz team frames are all identical, and identical to the frames that come with the complete bikes in 05.
dw
The Sunday will sag about 1/3 of its travel. I raced the bike at West Virginia and I could blast through the rock gardens no probs. I hit the bashguard a few times, but the SRS was designed for that. The SRS in part made it possible for us to even consider running BB heights this low on DH bikes. Actually in WV I was on a 7 inch fork, so BB height was in the 13.7 range.syadasti said:
Dave
This is for you MMcG!
MKIII frame geometry:
MKIII 15"
HA = 70
SA = 73.5
Eff TT = 21.5"
CS = 16.9"
BB = 13.2"
WB = 41.6"
(with 5" fork)
MKIII 17"
HA = 70
SA = 73.5
Eff TT = 22.5"
CS = 16.9"
BB = 13.2"
WB = 42.6"
(with 5" fork)
MKIII 19"
HA = 70
SA = 73.5
Eff TT = 23.25"
CS = 16.9"
BB = 13.2"
WB = 43.35"
(with 5" fork)
MKIII 21"
HA = 70
SA = 73.5
Eff TT = 24"
CS = 16.9"
BB = 13.2"
WB = 44.1"
(with 5" fork)
I am 5'11" and I have been riding a 17" MKIII prototype with a Prototype Manitou Nixon Platinum fork for the last several months, and it has been a SWEET combination. The bike just begs to be ridden hard and fast. It seems to accelerate over everything and it holds speed over all of the little roots and rocks in the trails. Its a real fun bike. I cant wait to get a production model.
MKIII frame geometry:
MKIII 15"
HA = 70
SA = 73.5
Eff TT = 21.5"
CS = 16.9"
BB = 13.2"
WB = 41.6"
(with 5" fork)
MKIII 17"
HA = 70
SA = 73.5
Eff TT = 22.5"
CS = 16.9"
BB = 13.2"
WB = 42.6"
(with 5" fork)
MKIII 19"
HA = 70
SA = 73.5
Eff TT = 23.25"
CS = 16.9"
BB = 13.2"
WB = 43.35"
(with 5" fork)
MKIII 21"
HA = 70
SA = 73.5
Eff TT = 24"
CS = 16.9"
BB = 13.2"
WB = 44.1"
(with 5" fork)
I am 5'11" and I have been riding a 17" MKIII prototype with a Prototype Manitou Nixon Platinum fork for the last several months, and it has been a SWEET combination. The bike just begs to be ridden hard and fast. It seems to accelerate over everything and it holds speed over all of the little roots and rocks in the trails. Its a real fun bike. I cant wait to get a production model.
any prices?
Thanks dw - the 17" frame sounds like the right fit for me - hopefully I'll be able to find one to test drive within a reasonable drive time when they hit local bike shops.dw said:
Holy cow that's a quick transition to a different suspension design......talking about jumping wagons.......looks promising though.......my 2003 is damn good, can't wait to try this batch....
uhhhhh.... well.... insert something witty here about your "internet friends" etc. Maybe add in something about how I'm stalking you and trying to take over your identity. Sorry Marc, I'm in the UK now and pretty jet lagged.ohio said:
Bring your book the next time we ride demo. If you pick up a 7Point bring that along as well, and you can explain it all.
As to the napkin design thing, I guess that would start to explain the curves in the 7point. They did seem fairly "organic".
"Memphis ribs, some collard greens, dirty rice, cornbread, and mac-n-cheese with a bunch of beer. Thats what I'm talking about! "
Nice, glad to hear that place still rocks. I can't tell you how many rides ended there..
Nice, glad to hear that place still rocks. I can't tell you how many rides ended there..
I just saw on Bikemag.com that the MKIII Team will retail at $4300. Damn I was hoping like 3500 or something because I really wanted to have the team with the Nixon Platinum fork. Any ideas what the other versions are going to cost?
DW you have written a lot about desing of the frame and how the suspension impacts the frame. What about the bearing and the quality of the bearings? I remember reading something from Dave Turner where is goes on about bushings are better than bearings yes/no?
That's what Turner says. Something about bearings being intended to spin at high speeds, not take the abuse, loads, and minimal range of motion inherent to an F/S bike frame. As an RFX owner, I agree that bushings work, but so do well-executed bearings...CBJ said:
as far as I know FSA doesn't make a 83...closest thing they make is 85x133DßR said:
Truvativ on the other hand makes a 83
Ah, correct you are - but will have one for next year, according to a quick search. Todd sez:Acadian said:
http://www.ridemonkey.com/forums/showthread.php?t=90035&highlight=83mm
Good for Shimano, glad to see them hopping aboard a new-ish standard, after being nearly 10 years behind the ball on 20mm forks.....
Keep in mind that on mr dave's DH design, he uses the kind of bushings that are housed in steel, contain either steel needles or balls, and are full of grease.CBJ said:
kidwoo said:
Does that answer my question
I think what he's saying is that Turner is using what most people call 'bearings,' but they're actually 'bushings.' I know there's some confusion between the terms for us non-engineers...I sure don't know the difference.
But I always thought Turner's defense of 'bushings' was aimed at the plastic plugs on which the RFX and other non-DHR rear ends pivot...not the main DHR pivot, which does use what I've always heard called (even by Turner) "needle bearings."
But I always thought Turner's defense of 'bushings' was aimed at the plastic plugs on which the RFX and other non-DHR rear ends pivot...not the main DHR pivot, which does use what I've always heard called (even by Turner) "needle bearings."
and needle bearings can be of very different quality so lets hope DW has used the good stuff.
Yes, so shut up.CBJ said:Does that answer my question
I'm kidding. My point was just that with all D Turner's hype about bushings, he still uses bearings on the one bike they make that will take more abuse than all the others. So while bushings do work for lighter bikes for lighter riding, I find it interesting he ditches them when he knows there's going to be more stress on the pivots. In all fairness though I still have yet to see an RFX or any other bushing bike develop any play.
Even with my DHR, his stated reasons for avoiding show true. Every so often I dissasemble all my suspension bikes and rotate the bearings around full rotation a few times because I do notice in fact that bearings do develop some wear when their range of motion is so limited. They get rough. After rotating them a few times, they usually smooth back out. I guess it would be interesting to hear his take on why he avoided developing a bushing system for the big bike.
Naw, I was being a smartass. Everything in the DHR linkages is needle bearings. Just plain ole' zerk lubed needle bearings. I haven't popped one open yet but even the main pivot bearings look like cartridge ball bearings. Maybe those are needles too. Either way there's nothing there like what's on the xc bikes....which are what I would call more bushing-like.MikeD said:
Kidwoo the bearing smartass - it does not sound nerdy at all. I will warn you though if you start posting in the brooklyn thread.
yeah, but then we'd all be debating the flat crown on the 888 thing here instead...Bulldog said:Oh no, I'm not that much of a basher. I just have my favorites!