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1989 Kastan KEX Pro-S

#1 2007-12-03 2:50pm

bmxmarty
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From: Hella NorCal
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1989 Kastan KEX Pro-S

http://bmxmuseum.com//image/main_1_copy1.jpg http://bmxmuseum.com//image/extra-959bacd21e2.jpg http://bmxmuseum.com//image/extra-359bacd1ca9.jpg http://bmxmuseum.com//image/extra-459bacd1f4c.jpg http://bmxmuseum.com//image/main_2_copy3.jpg http://bmxmuseum.com//image/main_3_copy2.jpg http://bmxmuseum.com//image/extra-1159bacd2476.jpg http://bmxmuseum.com//image/main_4_copy3.jpg

1989 Kastan KEX Pro-S

One-off KEX, factory-built with cantilever mounts. Check comments section for additional photos.

Little story behind this one. This used to be my green 1989 KEX Pro-S which cracked in 1993. I got on the cover of Mountain Bike Action magazine in September of that year while wearing Kastan race pants. At the InterBike tradeshow I showed the cover shot to Linn Kastan who offered to send me one of his new chromoly Squareback frames for the free marketing he got from the photo. Right when I got the new frame from Linn I noticed that my green frame had cracked. I called Linn and he said that he would fix the frame for me if I sent it to him. When the frame came back he had fixed the crack, replaced a smashed cable-stop and the old brake bridge which had been flattened from years of brakes coming on and off, welded canti brake mounts to it, painted it white and stickered it up with the newer generation logos. Since I was riding the Squareback now, I put the frame away without ever building it. It hung on the wall with an almost NOS strut for 15 years until I finally got the parts together to build it up, so here's the spec sheet:
* Frame: 1989 Kastan KEX Pro-S, White
* Fork: 1990 Kastan Strut ('89 Strut cracked and was replaced), Chrome
* Headset: Tioga Beartrap 2, Chrome
* Stem: Profile XL Invert, Polished
* Bars: S&M Slam Bars, Chrome
* Grips: ODI Longnecks, Black
* Brakes: Shimano Deore V-Brakes, Black
* Lever: Shimano Deore, Black
* Seat Post: Kastan 25.4mm Chromoly, Chrome
* Seat: Fit ECCD Perfporated, Black
* Pedals: Primo Pro Rounds, Silver
* Cranks: Profile Race, 180mm, Chrome
* Bottom Bracket: Profile Race, Polished
* Chainring: Profile Whipit, 43t, Polished
* Freewheel: Shimano 16t
* Chain: Sedis
* Chain Tensioners: VG Spurs, Silver
* Front Hub: Kastan 36-hole, Silver
* Rear Hub: Phil Wood 36-hole, Polished
* Rims: Araya 7X 36-hole, Silver
* Spokes: Wheelsmith Stainless, Chrome
* Front Tire: Tioga Comp III, 20 x 2.125"
* Rear Tire: Tioga Comp III, 20 x 1.75"
Check out the big brother too: http://bmxmuseum.com/bikes/kastan/64088


http://bmxmuseum.com/img/view-bike-in-museum.gif

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#2 2007-12-03 3:06pm

JoeKat
Pro MemberMust resist...another Redline
From: Cincinnati, OH
Registered: 2007-03-05
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Re: 1989 Kastan KEX Pro-S

Wow, an incredible bike with an incredible story.

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#3 2008-03-14 7:05am

earnie911
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From: Oklahoma
Registered: 2008-03-06
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Re: 1989 Kastan KEX Pro-S

That fork looks scary!!!!!! roll


cool Upgrade your bike until it's exactly how you want it then go on to the next bike cool

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#4 2008-04-30 10:20pm

stoner4204ever
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Registered: 2008-03-06
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Re: 1989 Kastan KEX Pro-S

kinda looks like my kastan pro xl, can you ask mr kastan to hook me up with some stickers for a 96 kastan pro xl alum. if so i'd be sooooooooo happy!!!!!!!!

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#5 2008-04-30 10:22pm

stoner4204ever
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Re: 1989 Kastan KEX Pro-S

and, that stem looks just like my profile! sweet!

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#6 2009-03-06 4:17am

granroyal
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From: Australia
Registered: 2008-10-22
Posts: 88
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Re: 1989 Kastan KEX Pro-S

Very nice.  An awesome setup with a great story.  If you ever wish to part with it just give me a yell.

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#7 2009-04-14 11:56am

gaijin
Pro MemberResident Hutch Hater
From: Orlando, FL
Registered: 2007-04-24
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Re: 1989 Kastan KEX Pro-S

Great story, and a one-of-a-kind frame.  Very cool.


avatar photo copyright 2012 asklite

Things I need:  Chrome MX-900s and Tech 3 (rear), 1st or 2nd gen finned Mathauser pads with original hardware.

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#8 2009-05-27 8:39am

EvilD
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From: Redding, Ca
Registered: 2009-05-20
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Re: 1989 Kastan KEX Pro-S

That's a great story. I've always heard that Lynn was one of the coolest people in the industry (not to mention being a genius!) Unfortunatly the only Kastan part I had was the bars on my S&M Dirtbike, which got stolen. They were just like Redline forklifters, but with a powerlite style bend.


Life is tough, it's even tougher when you're stupid.

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#9 2010-08-10 7:00pm

dirtman
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From: Whoville, MN
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Re: 1989 Kastan KEX Pro-S

one of the baddest kastans ever it f-en rocks:)smilesmilesmilesmilesmile


Mr.tig welder

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#10 2011-01-11 6:11pm

Twistedimages
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From: Sacramento, CA
Registered: 2010-11-19
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Re: 1989 Kastan KEX Pro-S

Awesome story!  Always loved Kastans, and this just reinforces my feelings!


My bike (1987): 1987 Haro FSX
My bike (2010): 1994 GT Cruiser

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#11 2011-03-12 7:46pm

Dhawk5
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From: Wichita kansas
Registered: 2011-01-25
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Re: 1989 Kastan KEX Pro-S

I always loved the fork on the kastans. Love the bike

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#12 2012-04-04 6:40pm

chkn4130
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Re: 1989 Kastan KEX Pro-S

Awesome bike with all the right parts.


When I'm not riding BMX my other ride is a Husaberg FE 390.

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#13 2013-10-30 8:37am

bmxmarty
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From: Hella NorCal
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Re: 1989 Kastan KEX Pro-S

Here's some additional photos:

Was not stoked and still remember exactly where this happened. As you can see, I wrecked riding street one day and the Strut had a run-in with a curb:

http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra1_zps74ce3bcb.jpg

Note the weld bead running down the side of the leg from the steerer tube. Part of the reinforcing brace that was installed on 2nd generation Struts:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra2_zps9f412bcd.jpg

The reinforcement brace goes up into the steerer tube to strengthen it:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra3_zps7029a494.jpg

Very unique hubs were made for the Strut. The bearings are interchangeable with the Redline Techmatic BB, and pretty much nothing else on earth as far as I can tell. The aluminum nut was also proprietary to the Strut. You can see marks on it from years of taking it on and off. Big upside was that you almost never had to remove it since you could change a flat without removing the wheel. That allowed for quick tube changes and prevented me from missing my main at a National in California in 1990:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra4_zps0a88e69f.jpg

Phil Wood hubs are simple, beautiful, and nearly indestructible American-made works of art:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra5_zpsb543d921.jpg

I don’t think these Primo Pro Round pedals were sold for very long due to (if memory serves me right) problems with the spindle strength. They look nice and grip great though:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra6_zpsdb6cfd84.jpg

Profile XL Invert stem is, as with all Profile products, another work of art. Coming from race car fabrication, Profile had the know-how to do things right, and with all manufacturing happening in the USA, they have their eyes on quality control in a manner that is very difficult to replicate overseas. Thus, you have beautiful products with perfect attention to detail, pretty much 100-percent of the time:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra7_zpsd777bd6b.jpg

S&M Slam bars are another good example of fantastic American-made craftsmanship. These bars (along with S&M Pitchforks) were on many pro racers bikes with their own sponsors decals replacing S&M’s. When it comes to the type of quality the worlds top racers could trust their life with, S&M won the race hands down.
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra8_zpsb724ab31.jpg

The “Slam Dancing Guy” decal was my favorite Slam Bar decal, with the “Slam Dunk” being a close second:
http://i624.photobucket.com/albums/tt327/bmxmarty/Extra8a_zps274452d3.jpg

Another view of the reinforcements on the Strut. Also note the front brake housing stop, which was replaced by Linn when he fixed the frame. The original had been crushed in a crash at Santa Clara PAL:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra9_zpsd810da4d.jpg

The seat post clamp is a great example of Linn Kastan’s amazing attention to detail, and desire to produce something that looks and functions great – even if it increases production time and cost. The seat clamp took longer to weld than any other part of the bike. It inspired the seat clamp on the 2014 GT EX frame (the KEX dropouts also inspired the dropouts on the EX frame). The KEX was one of the first frames to use a 25.4mm (1”) seat post (most bikes at the time used a 22.2mm (7/8”). Rather than taper the tube from 1” to 7/8” for the seat guts to fit, Kastan welded a 7/8” tube into the 1” tube:
http://i624.photobucket.com/albums/tt327/bmxmarty/Extra10_zpsa12e6f6c.jpg

A final shot of the complete bike. Note my “bike stand” is a can of Sixpoint Brewing Bengali Tiger, which has the unique benefit of allowing one to rehydrate after a photo shoot:
http://i624.photobucket.com/albums/tt327/bmxmarty/Rides/Extra11_zpsf44752aa.jpg

Last edited by bmxmarty (2013-10-30 8:42am)

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#14 2013-11-06 4:28pm

chkn4130
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From: New York
Registered: 2011-01-14
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Re: 1989 Kastan KEX Pro-S

So bad ass


When I'm not riding BMX my other ride is a Husaberg FE 390.

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#15 2013-11-09 12:51pm

80sgenbmxer
Museum Addict
From: Tracy, CA
Registered: 2009-01-06
Posts: 2064
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Re: 1989 Kastan KEX Pro-S

Sickes Kastan ever!cool


Kik 80sgenbmxer

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#16 2014-08-09 1:17pm

nic968
Intermediate
From: United Kingdom
Registered: 2008-07-29
Posts: 400
Bikes: 9
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Re: 1989 Kastan KEX Pro-S

Epic bike, great shots and details too..cool


........Kastan 24'' Strut wanted.......Anyone?
........RNC Crank arm also needed..a l/h 180...?

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#17 2016-01-07 11:51pm

A.M. RACING
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From: Redmond, Washington State
Registered: 2011-08-24
Posts: 848
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Re: 1989 Kastan KEX Pro-S

GREAT write-up...KILLER Bike.... Linn Kastan sounds Very Cool!

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#18 2018-02-08 5:25pm

1fastmotodude
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From: SoCal to NorCal
Registered: 2013-10-10
Posts: 1953
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Re: 1989 Kastan KEX Pro-S

Nice Kastan, and great photography cool


Mechanical Art...                                                                                                                                                       

                               God bless America . . .

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