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nonopr
5th December 2008, 06:13 AM
I plan using this board with a 7.6, 8.4 and 9.2. What size fins?
Thanks for the recommendations.

Remi
5th December 2008, 08:00 AM
Hi Nonopr,

Befor to answer, I would like to know your weight and what kind of sails.

All the best

nonopr
5th December 2008, 08:19 AM
Yep, I am 170 lbs/76 kilos and MauiSails TR-4's. Another question is the box in that board actually a deep tuttle or a regular tuttle box.

pfaffi
5th December 2008, 12:26 PM
For all iSonics: Take the tail width (width one foot off (30,5cm)) and the longest fin is -4cm the shortest -8cm.
E.G. tail widht iS101 09 = 45,4cm: max is a 41/42cm fin and min a 37/38
use the shortes for small sails and the longest for your biggest sail :-)
For top speed purposes and deep downwind you can go down to -10cm but not more. Better to use than a smaller board.

Chris Pressler
5th December 2008, 10:19 PM
Perfect description, Pfaffi. Nonopro, you should use 42 - 46 cm. I really like the 44 Vector Canfire on the 122. You are a bit lighter than me. So you could try a 42 for the smaller sizes and 46 for 9,2. If you will grab the 9,2 you definitely will have very light wind.

All the best,
Chris

nonopr
5th December 2008, 11:06 PM
Chris, I order already the Canefire 44 for the 9.2.

MartinJE
6th December 2008, 03:38 AM
Can't go past C3 Venoms: 40/42; 44/46 - 2008 Isonic 122 @85kg with 7m6 and 8m8 Naish Redlines - I use the larger of the two ...

Screamer
6th December 2008, 06:15 AM
I wouldn't agree with that formula (one foot off minus 4-8cm). For iS122, ofo 52.8cm, it gives fin range of 45-49cm, so Starboard gave us wrong smaller fin ;-)

Imho iS122 works really well with 40-42 fins for well powered 7.0-7.5.

pfaffi
6th December 2008, 04:38 PM
Hi Screamer!
Go for a Slalom Comp and you will know why a smaller/bigger fin than recommended out of my formula is useless. Usually if you use a wide board you have low wind conditions, so you will go a 8 course. If the wind is shifting there will be the need to go a little upwind to one side. For that you need the bigger fin. If you have high wind conditions for your desided combo use the smaller one. If you deside to big (out of my formula) you will ride your board like a Formula and you nevver reach an adequate top end speed. If you deside to small the board will not start flying because you cant force your back foot. Out of my own experiance a 7-7,5 on a iS122 is very very small.

Chris Pressler
6th December 2008, 07:27 PM
In my opinion a 7,7 worked great on the 122. Was my favourite combination. 7,7 CR plus iSonic 122 plus 44. Also 8,3 felt really nice. 9,0 could feel tricky, but was a great setup for lighter winds and used a 48 later the season for teh big sail. I helped to get into planning, but did not increase the top speed.

Chris

Screamer
7th December 2008, 03:22 AM
Hey Pfaffi

Yes you're probably right with regard to slalom competitions and wrt what pro racers use.
However, in real world scenarios, things are a bit different. For example I don't race, I don't have many boards (I jump straight from iS122 to Kombat86) and I want to cover as much wind range as possible. iSonics are marketed (with good reason) as wide range boards, and many sailors use that to the max. You'll admit that iS122 + 8-9m sails + 45-49 fins doesn't sound like much. In fact it sounds like dsb's from the past.
Racers have the luxury of choosing exactly the right gear within tight margins. But for the rest of us, you'll see many posts from Ian, Remi and other team members confirming my thoughts.

Have fun

Edit: Thinking again about this I actually agree with your point of view, mine is just a bit different. Put another way, what board would you choose for racing with 7.3 to 9.0? (if there's only one board allowed) I'm very happy about my choice ;-)

honk
7th December 2008, 10:01 AM
Edit: Thinking again about this I actually agree with your point of view, mine is just a bit different. Put another way, what board would you choose for racing with 7.3 to 9.0? (if there's only one board allowed) I'm very happy about my choice ;-)

I will choose the iSonic 133

Remi
7th December 2008, 12:45 PM
Hi Nonopr,

I will recomend you the SL4 44cm for the 9,2mē, 42cm for the 8,4 and 40cm for the 7,6.

But to save money you can do 44 to 40cm.

Hope this can help

All the best

nonopr
7th December 2008, 03:12 PM
Hi Nonopr,

I will recomend you the SL4 44cm for the 9,2mē, 42cm for the 8,4 and 40cm for the 7,6.

But to save money you can do 44 to 40cm.

Hope this can help

All the best



Remi, Just what I figure. Thanks I have already the 42 and I buying 40cm and 44 today.
No one ever answer the question about the box, Is it a deep or a regular tuttle box. The website says is a deep tuttle but all team riders are using regular tuttle fin base.
Let me know,
JS

Remi
7th December 2008, 05:52 PM
Hi Nonopr,

Yes it's deep tuttle and recommand you to get in deep tuttle the fins for this board.

But it's ok with the simple one.

All the best

nonopr
7th December 2008, 10:06 PM
Remi: Thanks. The board arrive yesterday. Yeah it looks deep Tuttle and the fins that come with the board are not.. I spoke to Jasper Orth and he says that he use the board with Regular no problem. The board comes with really long screws so I guess I can use my other fins I already got from my other iSonic and also try some other fins I got with deep Tuttle in my quiver for the hell of it. You never know I might have a rocket ship hiding in a closet.

Do you think the sizes I have selected to ride this board are good and competitive 7,6. 8,4 and 9,2 with 40, 42, 44 cm Canefire from vector fins. Have you ever been here in Puerto Rico. Will be great to have you visit and give us a day of lessons for a free stay???? To us the starboard riders here

Remi
9th December 2008, 07:09 AM
Hi Nonopr,

I came already 3 times in Puerto Rico and thanks for your proposal, we never know what will happen in the future.

For the Vector fins better to ask to Jesper, we are testing the boards for devellopment on Deboichet, so I can give you all information for the better one in there range for any iSonic. This size work great for SL4.

All the best

pfaffi
10th December 2008, 08:04 PM
Hi Screamer!
(Put another way, what board would you choose for racing with 7.3 to 9.0? (if there's only one board allowed):
Clear for me, for 9,0 I would use the iS133 because there is big difference in starting planing limit compared to iS122. If thats not the point the iS122 is the better if you like to use a 7,3 too.

Lessacher
10th December 2008, 11:08 PM
We used to 133l Isonic Duo Rake 30° fins in 100% carbon. The biggest is 35cm (vertical)
is diagonal 5-6cm longer. No spin outs, downwind very fast, upwind good and no joke:
9,5mē no problem. I use the rake 30 fins in Strand Horst Netherland. If you make speed,
is weed no problem. 22cm 25cm 28cm 32cm 35cm. Wolfgang

nonopr
10th December 2008, 11:58 PM
Lessacher: What brand of fin is that? Is that a weed fin?

Lessacher
11th December 2008, 03:01 PM
Between upright fin (15°) and weedfin (45°). At the moment my fastes speedfin.
The upright is the Le Wo Duo. A dutch Speeder made with the 25cm over 43 knots topspeed,his name is Christian Pieper. That was not fast enough , so worked I 2 years
for a fin with better rake. Easier to use, faster than a upright fin. The Speeder , who
use the fins have the last half year not enough wind. In the german speedranking 2008-2009 use 12 from 17 my fins. We wait for wind. Wolfgang www.designlessacher.com
No pics from the rake fin.But I can send you some, if you want.

nonopr
11th December 2008, 07:17 PM
Lessacher, sounds interesting. Thanks.

willy
12th December 2008, 07:22 AM
Hi there, i am also looking for a fast fin for an iSonic 101 2009 for match race in 110 degrees downwind, is the Lesacher fin a new one? has somebody tested it in an IS 101 ? My weight is 71 kilos and use it in very flat water and 17-20 knots with a Ka 6.6 sail.

Lessacher
12th December 2008, 02:50 PM
Hallo Willy! The rake 30° is, how she is worked now, good a half year old.
Please look: www.dailydose.de
There is something over GPS speed. There see you the German Ranking 2008-2009.
12 of 17 use my fins. Wolfgang