人気ブログランキング | 話題のタグを見る
2005年 06月 15日

! IMPORTANT ! ~チェーンデバイス/チェーンの長さ

! IMPORTANT ! ~チェーンデバイス/チェーンの長さ_b0049658_1852911.jpg

U will need to determine the correct location for the upper roller before tightening. When the bike is completely bottomed out, the chain should just be touching the groove in the top roller while the roller is also touching the guide plate. This location is generally at about 12:00 for longer travel frames (6"and up) and at 11:30 on shorter travel frames. This location is very important for the chain guide to function properly. Once the boomerang is positioned properly, tighten the bottom bracket to the manufactures torque spec.
The top roller is desighned to be a guide, not to tension the chain at any point in the bike travel. This is very important! Improper top roller position will result in broken or lost rollers, bent boomerang and dropped chains. The exact method of determining the top roller is to remove the spring from the rear shock, allowing U to bottom the bike out. With the crank installed and the chain on the front chain ring, rotate the boomerang so that the chain just touches the top roller when the bike is completely bottomed out. Remember that the top roller location is very important. Do not rotate the boomerang back so that the swing arm has more clearance, contact MRP if U feel more clearance is needed.
Crank and rollers-Install the crank arms and tighten to the manufactures specified torque. Put the chain on the front chain ring and alighn the rollers so that the groove is centered over the chain. The rollers are reversible so it may be necessary to flip the rollers to get the proper alighnment. Additional washers can also be added behind the roller to achieve proper spacing. The rollers should be touching the plates so that they rotate together. It is necessary to tighten both sides of the roller simultaneously. Be sure to use thread lock on both roller screws and tighten firmly.
Slider adjustment-The sliders should now be less than the chain width from the chain ring. If not, add washers behind the sliders to get the distance to be less than the chain width from the chain ring. Move the sliders out on the boomerang until they are 1/16"or less from the roller but not touching the roller. Tighten all the screws in place with a 3mm Allen key and a drop of thread locker on each screw.
Finishing touches-Be sure that all the screws are tight (drive and non-drive cups too!) Check your chain length by shifting through all the gears. It should be able to go into all the gears with ease, but should not have a lot of extra slack. Note that most full suspension frames have chain growth so U will need to have enough chain length to be in the largest rear cog and bottom out the bike without the chain stopping travel. U will break things if U don't have sufficient chain length.
以上です。これはMRP以外のデバイスにも共通する部分の多い大切な事で、これらをクリアしていないものは意図する事がない限り明らかに欠陥車であり危険です。ホンダ車やシマノドライブトレイン以外の特殊なもの、BB軸上にメインピボットがあるものは一部を除き、デバイスやチェーン長、サドルのRタイヤに干渉しない最低高を決める為にRサスユニットからスプリングを外した状態でのストロークシミュレーションが大切です。さらにRサスユニットのエア(ガス)圧のかかってないときに可動させるのもNGです。エアサスユニットも同様ですので、エアサスの場合はユニットを外しフレームのストローク起点とボトム点をユニット軸間長とユニットストロークから位置決めしましょう。

by kbrosf1 | 2005-06-15 00:27 | 紹介/参照 | Comments(0)


<< お疲れ様でした~UZZI-SLX      配慮III >>