I'm wanting to verify the sit in measurements for the 07 Attak GT. I was looking at the chart in Tech section and wasn't sure if it was for a 121 track or for both including the 136 track.
Thanks,
joel
Thanks,
joel
Spring sag procedure and spec is same for all '05 and '06 monos and is highly recommended. It's simple to do but requires two people because someone gets to lay on the ground and measure spring length while you're sitting on it.
1. Measure the spring length with the unit hanging or tipped on it's side (suspension unloaded).
2. Measure the spring with the rider sitting on it in normal riding position (moving forward and back on the seat will affect sag). The spring length with rider on it should be 40~45mm shorter than the hanging length. Adjust preload to achieve this spec. If max preload will not achieve proper sag, you need a heavier spring.
Several notes / cautions:
- On Ohlins stock spring DO NOT adjust spring length shorter than 262mm hanging length. A couple mm shorter than 262 won't damage it, but don't go any further, if you go shorter and coil bind the spring repeatedly you WILL damage the spring.
- After any preload adjustment you must do both measurements again.
- The procedure and 40~45mm spec works for '05 and '06, KYB and Ohlins, 121" and 136" and optional heavier spring.
- This is an effective noticeable adjustment and actually increases ride comfort even if increased preload is necessary for heavier guy.
This is the way I set my GT tonight and I also added 10 more click of harder rebound from stock for my weight. At 250 lbs my sag is about 3/8 to much with the stock spring set at max as stated above so I will still get a heavier spring. But at these setting I took my GT down some rough crap trail areas near my house that normally toss me off the seat and It ate them up with ease and I coudnt help going back over those areas again and again smiling the entire time....these adjustments can go along way guys...look into this.
Same for 07's
1. Measure the spring length with the unit hanging or tipped on it's side (suspension unloaded).
2. Measure the spring with the rider sitting on it in normal riding position (moving forward and back on the seat will affect sag). The spring length with rider on it should be 40~45mm shorter than the hanging length. Adjust preload to achieve this spec. If max preload will not achieve proper sag, you need a heavier spring.
Several notes / cautions:
- On Ohlins stock spring DO NOT adjust spring length shorter than 262mm hanging length. A couple mm shorter than 262 won't damage it, but don't go any further, if you go shorter and coil bind the spring repeatedly you WILL damage the spring.
- After any preload adjustment you must do both measurements again.
- The procedure and 40~45mm spec works for '05 and '06, KYB and Ohlins, 121" and 136" and optional heavier spring.
- This is an effective noticeable adjustment and actually increases ride comfort even if increased preload is necessary for heavier guy.
This is the way I set my GT tonight and I also added 10 more click of harder rebound from stock for my weight. At 250 lbs my sag is about 3/8 to much with the stock spring set at max as stated above so I will still get a heavier spring. But at these setting I took my GT down some rough crap trail areas near my house that normally toss me off the seat and It ate them up with ease and I coudnt help going back over those areas again and again smiling the entire time....these adjustments can go along way guys...look into this.
Same for 07's
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sinjin
Expert
tcona-AGT said:
Just wondering if you made any adjustments from stock to your front shocks. I put the GYTR piggys on my 2006 Attak and wondering what opinions are stock vs. ?????? for settings. Thanks, Dave
