sag of transmission chain

[fusion_builder_container type="flex" hundred_percent="no" equal_height_columns="no" hide_on_mobile="small-visibility,medium-visibility,large-visibility" background_position="center center" background_repeat="no-repeat" fade="no" background_parallax="none" parallax_speed="0.3" video_aspect_ratio="16:9" video_loop="yes" video_mute="yes" border_style="solid"][fusion_builder_row][fusion_builder_column type="1_1" type="1_1" background_position="left top" background_color="" border_color="" border_style="solid" border_position="all" spacing="yes" background_image="" background_repeat="no-repeat" padding_top="" padding_right="" padding_bottom="" padding_left="" margin_top="0px" margin_bottom="0px" class="" id="" animation_type="" animation_speed="0.3" animation_direction="left" hide_on_mobile="small-visibility,medium-visibility,large-visibility" center_content="no" last="no" min_height="" hover_type="none" link="" border_sizes_top="" border_sizes_bottom="" border_sizes_left="" border_sizes_right=""][fusion_text]Tension regulation is indeed related to the length of the transmission chain, but they are two different concepts.A longish transmission chain doesn’t mean they lack of tension, but people are usually don’t want to see the sag of the chain. Actually, the tension will be reasonable if the chain can engage with the sprocket’s [...]