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Pics of Tomac Production Primer

NY_Star

NY_Star

Turbo Monkey
Jun 10, 2007
1,048
0
10 Sq Mi Surrounded by well armed white men


Here’s a picture of the first production Primer 220 (Red Wheels) next to an original prototype (Black Wheels). Notice the hydroformed top and down tube on the production bike. The bikes are currently being tested by Tomac Factory Team Manager and World Cup rider Claudio Caluori and superfast Swiss Junior Robin Hagen, a member of next year’s Tomac World Cup Squad.
 
S.K.C.

S.K.C.

Turbo Monkey
Feb 28, 2005
4,102
21
Pa. / North Jersey
Tomac_racer said:
Here’s a picture of the first production Primer 220 (Red Wheels) next to an original prototype (Black Wheels). Notice the hydroformed top and down tube on the production bike. The bikes are currently being tested by Tomac Factory Team Manager and World Cup rider Claudio Caluori and superfast Swiss Junior Robin Hagen, a member of next year’s Tomac World Cup Squad.
Click to expand...
Interesting.

What were the FEA results for the hydroformed TT and DT vs. the regular tubing? I'm assuming better torsional rigidity, but that's just a guess.

I dig it.
 
bdamschen

bdamschen

Turbo Monkey
Nov 28, 2005
3,316
36
Spreckels, CA
I think I like the looks of the non hydroformed tube better, but i'd have no problem buying either one.... Might be time to get rid of my IH...
 
Total Heckler

Total Heckler

Beer and Bike Enthusiast
Apr 28, 2005
8,083
18
Santa Cruz, CA
Awesome. Cannot wait to have mine.

I will have a good write up of my Snyper 140 hopefully by this weekend. I am finally going to get it completed, pictures taken, and reviewed for all of you guys. =]

Super pumped.
 
DirtEveryDay

DirtEveryDay

Turbo Monkey
Nov 24, 2003
2,695
4
Pacific North Wet
jonKranked said:
fixed.
Click to expand...
Wrong part. I'm 5'7", I FULLY understand low standover, and it's nothing new. It's the hump at the headtube junction I don't like. Not as Quasimoto'd as the SC, but it's still there.
Seems like there's another trend goin as everything is starting to blend together again. Form follows function, I guess...
 
MobileChernobyl

MobileChernobyl

Monkey
Apr 16, 2006
392
0
Golden, CO
THRILLSEEKA said:
Seems like there's another trend goin as everything is starting to blend together again. Form follows function, I guess...
Click to expand...
Didja ever think that maybe that bump allows Tomac to flair out the headtube joint and eek out a little extra weld area on the headtube, making it stronger overall? That's function forming in my book.
 
DirtEveryDay

DirtEveryDay

Turbo Monkey
Nov 24, 2003
2,695
4
Pacific North Wet
Uh yeah, that's what I just ****ing said! Get it? FORM...follows... FUNCTION?!

And as a side note... Is it even necessary? When was the last time we've had headtubes breaking off anymore? I think even the Walmart Mongooses' cured that issue...

I'm only pointing out the asthetic issues that I don't like. The performance of a Tomac bike isn't really even an issue open for discussion. Now don't they have a full-awn DH rig comin out, too? Or is this the slimmed down end result? I remember seeing some pics/video of it, but never bothered following it's production progress as...well...I don't consider what I ride worthy of that bike!
 
J

Joel Smith

Chimp
Apr 25, 2002
17
0
Regarding the top tube shape, I think the bump is a little accentuated because the bars are turned slightly. In reality, it looks like slightly less of a hump than the picture shows. Nonetheless, the shaping was done for good reason: the head tube impact test showed that the flat section on top added strength and weld area, which in turn allowed us to eliminate gussetting between the head tube and down tube (MobileChernobyl had it right above). Besides the fact that the elimination of the gusseting improves the looks a bit (please note the lack of excessive welding in this area), it was also a bit of a technical accomplishment and lessened overall frame weight. In addition, the top and down tube shapes really enhance the front end stiffness of the bike.

The head tube size is 1.5, and is somewhat related to the above. The 1.5 provides increased/improved weld area.

BB is a standard 83mm and the rear end is 150mm (hex axle on one side, axle is supplied).

Price for the frame is $2599.
 
4xBoy

4xBoy

Turbo Monkey
Jun 20, 2006
4,880
226
Minneapolis
Still no seatpost size. :twitch:

Don't take my comments as smart--- I like the bike, I like the top tube, clean looking machine, if I could order the frame with a matching white 40rc2 I would put my money down now.

I would rather hear a report from Decline then MBA but that is me.
 
J

Joel Smith

Chimp
Apr 25, 2002
17
0
Seatpost size is 30.9, ICGS 05, fits up to 2.7 tires, shock is 9.5X3 (stock shock will be the Fox DHX 5.0). Let me know if I missed, or miss anything.
 
Dylan Dean

Dylan Dean

Monkey
Oct 12, 2007
608
0
southern California
Joel Smith said:
Regarding the top tube shape, I think the bump is a little accentuated because the bars are turned slightly. In reality, it looks like slightly less of a hump than the picture shows. Nonetheless, the shaping was done for good reason: the head tube impact test showed that the flat section on top added strength and weld area, which in turn allowed us to eliminate gussetting between the head tube and down tube (MobileChernobyl had it right above). Besides the fact that the elimination of the gusseting improves the looks a bit (please note the lack of excessive welding in this area), it was also a bit of a technical accomplishment and lessened overall frame weight. In addition, the top and down tube shapes really enhance the front end stiffness of the bike.

The head tube size is 1.5, and is somewhat related to the above. The 1.5 provides increased/improved weld area.

BB is a standard 83mm and the rear end is 150mm (hex axle on one side, axle is supplied).

Price for the frame is $2599.
Click to expand...
slick... i like the looks for sure. nice clean lines & great technology... just what i think of when i hear the name TOMAC. I don't recall the weight being stated, but i wasn't playing that close attention! lol i can't imagine it weighig as much as it's predecessor... The frame price is reasonable as well (considering it's competition)... that was one big issue back in the day when its the old rig retailed for about a grand more.

regarding the "hump".. never really been a fan of it's appearance... but understand the concept behind it, & like Joel stated, it might be more noticable because of how the photo was taken... regardless, it's not as big as the SC line. but even that grew on most of us.

Dvo1 said:
I would rather hear a report from Decline then MBA but that is me.
Click to expand...
...but then you wouldn't hear about it's climbing characteristics! ;)




Let's hope the company takes a similar route as Yeti now that it too is independtly owned again! grounded by it's heritage & love for racing...but not afraid to push the limits either!
 
J

Joel Smith

Chimp
Apr 25, 2002
17
0
Here's the geometry info.

Primer 220
Shock ETE: 240X76 (9.5X3)
Rear Travel: 220mm (8.7 inch)
Fork Travel: 200mm (7.9 inch)
Head Tube Angle: 66°
Seat Tube Angle: 62°
Chainstay Length: 441(17.36 inches)
BB Height: 377mm (14.84 inches)

Wheelbase for small is 1152(45.35 inches), medium is 1171mm (46.10 inches) and large is 1193 (46.96 inches).

Frame weight is 11.5 pounds.

No test on the Kami yet, but I think Johnny will go to Japan next year and race a pro Japanese national on it.

Leverage ratio is 2.9 to 1 and the suspension rate is progressive up to 140mm travel and then becomes virtually linear. We did this because as you go into the travel, the rear shock itself becomes more progressive. If the bike’s ending suspension rate is progressive, and the shock is progressive, deeper in the travel the suspension will both become overly firm and the bike will not achieve full travel.
 
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