My new Tech 1-R Alpine Star Racing Suit

Check out my new Alpine Star racing suit, the 1 piece Tech 1-R. Its black and what I am so proud of is its size. The size of 50 (EUR). See, just before I started cycling there was no way I can fit in to any ready-made 1 piece racing suit. My previous size was 54 yet the arm and leg section were just too long it was ridiculous to wear. That time I had to make custom racing suit, which was bit larger on the waist hehehe. This post about that racing suit.

My old racing suit also bit old. I made it in 2008 so close to 3 years already. It has protected me from several crash and it is a well made racing suit. Its local so not as expensive as international brand and I can make custom color, tag, etc on it. But to “celebrate” my weight loss I think a branded racing suite is in order, a gift after shedding 11 kg off my weight. 🙂

More picture and story after the link..



[Race Mod] STM Slipper clutch for CBR600RR Part I

Another addition to my CBR600RR mod, the slipper clutch! I have been looking for this parts for quite some times and I just got the opportunity to test and install it on my CBR. The main purpose of installing slipper clutch is to mitigate the effect of engine brake. 4 stroke engine like one in my CBR have strong engine brake and in a racing situation engine brake can make things “complicated”. See, you have your brake and throttle for bike speed control and with an engine brake you put additional parameter that can effect the bike speed. More over, engine brake only effect the rear tire which during hard brake – the bike load transfer to the front – can caused the rear tire to lock and hop. Thus instability while preparing corner entry.


CBR600RR HRC Rear Shock by SHOWA. Part 2.

On the next track day it was time to explore more the new HRC SHOWA shock. All the shock setting was still unchanged, I just want to familiarized my self with the rear end feel first. The Showa is a HRC racing shock so it was designed to be used by rider that more capable then yours truly. I might not have the shock on the limit at all, but I’m certain that the rear end feeling (and overall the bike handling) will be different than with that of stock shock.


CBR600RR HRC Rear Shock by SHOWA. Part 1.

HRC called it CUSHION ASSY, RR with Part No. 52400-MFJ-R11, it commonly known as shock or mono-shock. It was a racing parts by HRC for CBR600RR. The unit is made by SHOWA that supply almost all the suspension for HRC bike up to the MotoGP level. Only just late last year some HRC’s bike starting to use OHLINS, the most well known brand for suspension in MotoGP when Dovisioso started to test and used them in 09’MotoGP race, but before that HRC almost exclusively used suspension made by SHOWA for their MotoGP bike.

Some say since OHLINS no longer own by YAMAHA in 2009 then HRC started to try and use OHLINS for their MotoGP bike, but hey we are not here to talk about OHLINS and HRC, let just installed the SHOWA shock in my CBR!


CBR600RR HRC Racing Steering Damper. Part 1.

One major issue I had with my track only CBR600RR was that it “head shake” almost every time I accelerate hard exiting a corner. Head shake can causes steering wobble and can put the rider in a very dangerous situation.  This will also lower your lap time as you will be very cautious in applying throttle exiting a corner.

My CBR600RR does come with HESD or Honda Electronic Steering Damper that doing wonder in damping the head shake. Since it is an “electronic” version, the HESD will regulate its damping force depending on the bike speed. Low damping force in low speed and strong damping force in high speed. Thus a very agile bike in lower speed and stability in high speed.


Testing the MotionX-GPS with a ride to Puncak..

Last Monday my self and several Ducatisti friends did a short trip to Puncak, a mountainous area about 90km (55 miles) south of Jakarta. Puncak is very popular destination for weekend trip for people live in Jakarta and its surrounding area. With Puncak’s cool and fresh air Puncak is the only area close enough to get away from a hot and poluted air of Jakarta.

I also would like to test my iPhone based MotionX-GPS during this ride and I use the MotionX-GPS more as a “route recorder” then a “road guide”. So the device will not tell me which way to go, but will record my route info; such as Speed, Elapsed Time, etc during the trip.


Testing iPhone’s based GPS Lap Timer@Sentul…

Just got my self an iPhone 3G. It just being launched in Indonesia and to my surprise when browsing the iPhone App Store I found a Lap Timer application. The iPhone does have build in GPS thus there are many navigation application available for the iPhone. But none is for specific track junkies like me except the Harry’s GPS Laptimer v5.4! Above pics shows the application name and on the right is Sentul Track layout. Bare in mind I do not draw the track layout, the application automatically draw the track layout when I rode with the GPS attached to the bike.

This Saturday I manage to test the application at Sentul track, and as I do not have special hardware to mount the iPhone to the bike I do bit worried that the iPhone may get damaged and God forbid if I crash my iPhone will certainly ruin! But I want to test the app first, and if it going well I will have custom mount and protector to mount and secure the iPhone on the bike. For now let just test the application first and if it provide useful information.