...in their frames? My Koko flexes bigtime! I stand facing the bike's crank (either side) and while keeping the bike steady by locking one of the brakes I then put the tip of my foot on the pedal with the crank in the 6 o'clock position. I only need to apply a small (not slight) amount of downward force on the pedal and I can see the whole BB/lower downtube/adjacent section of chainstay swing away from me. I can see the gap between one of the seatstays and the seat tube increase and decrease by about 3-4mm as I do this repeatedly. I checked all the bolts and pivots and they seem to be all tight. No wobble or slop anywhere (shock mounts, dogbone, etc.). Nothing is cracked or broken. Fork and wheels are as tight and stiff as always. It seems to ride fine. Just rode a high speed trail with lots of rocky sections on STEEEEP downhills with either 2-3 foot drops or 2-foot kickers every few hundred yards or so, no problems. I only noticed the flex while I was waiting for my buddy (5+ minutes behind on his DH rig - I love my Kokopelli's handling!).
Is this flex normal? I've done the same test to my hardtail and my GF's steel rigid bike and they both have some of the same type of flex but not nearly as much as the kokopelli's.
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