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Röthbauer GmbH

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About Röthbauer GmbH

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  1. We all know the importance of good electronics and how they have changed over the years. In the 80’s it was somewhat of an economical and reliable point of purchase. Following the trend it was either Futaba or Sanwa (Airtronics). Already having an FP-4L at the time from a crashed airplane I chose to use those electronics in the Racing Baja, knowing it was an airplane frequency vs a surface radio. As things progressed and I found true enjoyment with the 1/8 scale nitro I eventually upgraded to the state of the art transmitter in early 1984, the FP-T3PG. I made the choice in preparation for competitive RC Racing, more like a sport rather than a hobby. Itching to race the car somewhere at the nearest RC track. Upgrading from a 4 channel stick radio to a purpose built race quality device with all the various adjustments needed including my favorite the Warm-up switch. Throttle Warm-up is a device which automatically cycles the throttle servo between SLOW - MEDIUM SLOW - (HIGH). The red led lamp flashes to indicate that warm-up is being performed. Futaba FP-4L with FP-S28 servo (3.5kg-cm) 48 oz-in (.24 sec /60 deg) weight: (53g) 1.87 oz Futaba FP-T3PG with FP-S132H servo (1.8kg-cm) 25 oz-in (.13 sec/60 deg) weight: 32g 1.13 oz
  2. I have the Kyosho OT236R rear shocks are a good substitute over the CB-88/89 which are a hard find. They have piston choices for various shock oil weights/spring combinations. Careful not to over tighten the newer ones as the gasket is very thin and somewhat of a challenge to get them over the threads. The difference is length is 10mm shorter vs the original ones. As for leaking, one could use a small piece of Teflon tape or blue thread locker.
  3. Kyosho shocks that have lost there tolerance.
  4. In preparation of replacing my old worn out Kyosho oil filled shock absorbers with new old stock I thought I share some differences between the Team CRP coil over vs the Kyosho from the Vanning era. I don’t know exactly what year the coil overs we’re available from Kyosho for the Land Jump Integra, possible mid year 84? What is known is how great the CB-88 or 89 shocks were at the time as many Tamiya Rough Riders had upgraded to improve the cars stability and increase steering response, same goes for Kyosho Scorpion racers. Only they paired them up with Team CRP coil overs for ultimate performance. Attached are some pics of my original shocks & coil over that underwent various settings as I was pushing the limits with the Racing Baja. The CRP springs have a much softer spring rate when compared to the Kyosho Vanning type which seem extremely firm. Team CRP - (Nr. 1515) Kyosho coil over springs are the secret to any coil over suspension. Our Kyosho coil overs come with two sets of springs (silver-light, gold-heavy). Our research and testing has shown that these custom wound springs are the best spring rates available. Coil over brackets use double set screw (90°/3 mm). Kyosho FM-71, CB-88 and CB-89 shocks. (pair)
  5. Back in 1983 when I was at the beginning of what would be an exciting course of development from all things RC. I was looking at the latest Tower Talk flyer from Tower Hobbies and noticed something of interest. Tower Hobbies had a listing for the Circuit 20 Extra Racing Baja (3045) which looked more like a real car then those previous cage type so, I was SOLD! I ordered the kit and assembled as per instruction pictures as the text was in Japanese. The kit arrived in a medium size box and the car was bigger than I had imagined once assembled. I was already aware of the various 1/8 on-road cars I had seen in magazines, however I was looking for the experience of off road racing. The project went on and I saved up enough money and purchased the rest of the items needed. OS Max .20 R/C was the first engine I got for the racing baja with the optional rectangle engine heatsink (Kyosho SD-75) to keep it cool. As I drove the car more and more I was also upgrading as I was learning to setup all things 1/8 buggy, mostly the engine. Next on the list was a set of front (CB-88) shocks that came with a mounting plate that you bolted to the chassis for extra damping. As for the rear (CB-89) shocks, I got two sets, four all together at the back and a total of six for the entire buggy. As time progressed I continued to drive the buggy up and down the street and various lots with different types of terrain. That’s when I started to notice how the car was handling and ordered the Team CRP (1526 Kyosho Coil Over) for the front. At this point the RC market was really evolving and now I was able to adjust the front spring tension and or chose from two different springs; Silver (Soft) or Gold (Hard).
  6. Moving on trying to get my Racing Baja back online, last used sometime in 85.
  7. If we all step back and remember what it was exactly that made R/C so immediately fascinating, most of us would probably say it was a level of realism involved. Both Kyosho & Tamiya gave us the chance to feel what real racing was all about, but it’s much more affordable and a lot less dangerous. Here we will restore and relive the glory of the Kyosho Racing Baja as I experienced when it was all brand new back in 1983.
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