Yokomo Yatabe Arena Springs for Astroturf/Carpet

[neallewis]

Yokomo "Yatabe Arena" brand Springs for Astroturf/Carpet for B-MAX2/B-MAX4 III available now at MB models and teamyokomo.eu

I've put together a chart. No published spring rates. I'll do some measurements and calculations when I get mine.
As yet no idea where the rates sit compared to the existing Yokomo or AE springs, commonly used on these cars.




"Shin Adachi recommends:
For B-MAX2: front YELLOW - rear BLACK
For B-MAX4: front PURPLE - rear ORANGE"


Now available here: http://www.rccarshop.co.uk/index.php...sult/?q=yataba

[dikke hond]

Big rate difference by Shin if you ask me...

[neallewis]

Originally Posted by dikke hond

Big rate difference by Shin if you ask me...

Please explain?


I've picked up all that MB models had in stock today, six of the nine springs.

[Paultje040]

He is talking about the spring advice from Shin Adachi.

2wd soft on the front and hard on the rear.
4wd hard on the front and soft on the rear.

And the big difference in the spring "rate" hardest to second to softest.
(Dunno if its all in propper English, but hey)

[neallewis]

Originally Posted by Paultje040

He is talking about the spring advice from Shin Adachi.

2wd soft on the front and hard on the rear.
4wd hard on the front and soft on the rear.

And the big difference in the spring "rate" hardest to second to softest.
(Dunno if its all in propper English, but hey)

OK I see what you mean.

I run soft on front, hard rear(ish) on bmax2 already. The car likes this.

I run med/hard front and rear of my bmax4-III on the saddle chassis. I guess Shin's advice (quoted above) is for the newer shorty chassis setup they are running?

I've picked up 6 of the 9 rates today, all that were available. Missing the front Orange and Yellow, and rear Black.

The springs are good quality. I suspect they are X-gear made, like kyosho, but to Shin's spec?

I'll do some measurements and theoretical rate calcs later, to the equation that Arn0 gave me for his charts.

If anyone is at the Euros this coming week, please can they ask him for a proper spring rate chart?

[dikke hond]

Originally Posted by neallewis

Please explain?


I've picked up all that MB models had in stock today, six of the nine springs.

Originally Posted by Paultje040

He is talking about the spring advice from Shin Adachi.

2wd soft on the front and hard on the rear.
4wd hard on the front and soft on the rear.

And the big difference in the spring "rate" hardest to second to softest.
(Dunno if its all in propper English, but hey)

What Paultje said. There is a big gap from purple front to orange rear (4wd), 2wd vice versa, if you know what i mean.
Still very confusing for me, but i'm not the smartest person!

Btw Neal: keep up the good posts!

[Paultje040]

I was looking for some springs for my Bmax2.

After looking at the springchart on Petit RC CLICK
I decided to try 2 sets of YATABE springs. Yellow front and Green rear.

I thought the Yatabe springs would all be harder than the Yokomo ones and extended the Yokomo spring range.

Once out of the pakkage the Yatabe springs didn't feel as hard as i thought they would be. So i mounted them up on the car and found the same.

This is what i "feel".

Rear: standard blue spring is harder than Yatabe green. (also have a set of Yokomo Purple and they are way harder than the Yokomo Blue)

Front: standard blue spring is close to Yatabe Yellow. not a big differance but seems to be harder.
Yokomo orange is harder than de Yatabe yellow (and Yokomo blue).

Also mounted up the rear springs and measured the sag.
Yatabe Yellow is softer than yokomo blue (and Purple)

So now it seems the Yatabe springs dont extend the Yokomo spring serie.
And the spring rates in the Sprinschart seem to be way off!

I wish Yokomo and Yatabe would give us a rating on the springs.

[mes]

Has anyone compared the old purple and black springs to the Yatabe ones? Front oranges and rear greens seem to be slightly softer. I still have the old ones, which are quite good for a heavy truck on carpet. Now I wonder whether to get the full Yatabe set for the YZ-2 or not. The old ones would probably be too stiff for the YZ-2 on any kind of track.

[Capt Hilts]

Hi,

Just a quick question regarding these “Yatabe” Springs:
That is how long are they ( front & Rear ) ???
I know that the standard Big Bore Yokomo springs are a few MM in length shorter than other Big Bore springs like; Kyosho, Associated, Losi etc.
I just wanted to know how much shorter they are than the std ones ?

Cheers in advance for any info you can give.

Rob.

[mes]

My front orange YTBs are the same length as my front orange B-Max springs, the same applies to my rear greens.

[The Doctor]

So what's special about the Yatabe springs vs the "standard" Yok springs anyway? Apart from the name, that is.

Having bought a BMAX4iii recently, I'm preparing it for the coming season and a set of springs is on the list so I was wondering what the difference is.