All okay, small scratch on inside but not detrimental to function, you could polish inside and use thermal paste for better heat conductivity anyway.

All okay, small scratch on inside but not detrimental to function, you could polish inside and use thermal paste for better heat conductivity anyway.

All okay, small scratch on inside but not detrimental to function, you could polish inside and use thermal paste for better heat conductivity anyway.

Arrived before expected date. Looks to be good quality. I bought it hoping it would fit an SG 1602 (brushless) but unfortunately it's too big! I'm sure it will come in handy some time in the future!

Arrived before expected date. Looks to be good quality. I bought it hoping it would fit an SG 1602 (brushless) but unfortunately it's too big! I'm sure it will come in handy some time in the future!

Arrived before expected date. Looks to be good quality. I bought it hoping it would fit an SG 1602 (brushless) but unfortunately it's too big! I'm sure it will come in handy some time in the future!

had to bend it a bit smaller to fit the brushless motor, but was easy enough and now fits nice and tight. added a bit of thermal paste to help soak up the heat from the motor.

had to bend it a bit smaller to fit the brushless motor, but was easy enough and now fits nice and tight. added a bit of thermal paste to help soak up the heat from the motor.

had to bend it a bit smaller to fit the brushless motor, but was easy enough and now fits nice and tight. added a bit of thermal paste to help soak up the heat from the motor.

squeezed closed a few mm between two fingers and a thumb to fit, once resized it popped into place and fits snug.. kind of hard to rate a heatsink but I think it beats not having one!

squeezed closed a few mm between two fingers and a thumb to fit, once resized it popped into place and fits snug.. kind of hard to rate a heatsink but I think it beats not having one!

squeezed closed a few mm between two fingers and a thumb to fit, once resized it popped into place and fits snug.. kind of hard to rate a heatsink but I think it beats not having one!

Installed the heatsink on the brushless motor. It was too big so i have to bend it a little bit to fit the smaller brushless motor.

Installed the heatsink on the brushless motor. It was too big so i have to bend it a little bit to fit the smaller brushless motor.

Installed the heatsink on the brushless motor. It was too big so i have to bend it a little bit to fit the smaller brushless motor.

ok fit, needs to bee squized together before applying. I used heatsink paste and gule to mount it.

ok fit, needs to bee squized together before applying. I used heatsink paste and gule to mount it.

ok fit, needs to bee squized together before applying. I used heatsink paste and gule to mount it.

Need to bend little. After that fit perfectly

Need to bend little. After that fit perfectly

Need to bend little. After that fit perfectly

This is a great heatsink which i am using for the 16889 brushless motor. The heatsink fits very well.

This is a great heatsink which i am using for the 16889 brushless motor. The heatsink fits very well.

This is a great heatsink which i am using for the 16889 brushless motor. The heatsink fits very well.

Running on 3s keeping it cool 😁

Running on 3s keeping it cool 😁

Running on 3s keeping it cool 😁

perfect fit for hbx168890 and sg

perfect fit for hbx168890 and sg

perfect fit for hbx168890 and sg