أجذب ودور كرسي
الدراجة النارية

تشير العبارة الى طريقة في التنجيد tuck and roll

https://www.youtube.com/watch?v=NnYOHptdnbY
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https://www.google.com/search?safe=active&channel=trow&q=tuc...
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والله أعلم

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للدرجات النارية غالباً

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tuck and roll seat of a motorcycle. سرج الدراجة النارية


سرج الدراجة النارية
https://www.arabpng.com/png-jlylw2/


Tuck means "put into a confined area," inside something, against something (larger), or between two things. The confined area is usually specified. There's typically no space between the thing tucked and what it is tucked in (under/against/between) -- the verb implies a tight or snug fit.

-- The man tucked a napkin under his chin.
-- He had an umbrella tucked under his arm.
-- I tucked my wallet in my pocket.
-- A napkin was tucked partway under the plate.
-- Tuck your shirt (tail) into your pants.
-- She's tucking the children in bed.
-- He managed to tuck the humvee into a compact car stall.
-- The kitten tucked itself against the mother cat.

It also means to fold, especially to make a pleat or Z-fold in a flat surface such as fabric (the thing tucked in is part of what it is tucked into or under). The meaning of tuck as a noun is closest to this.

-- The child tucked her knees against her chest.
-- The seamstress pinned a tuck in the waistband.
-- I did a tuck-and-roll when I fell off my bike.

https://forum.wordreference.com/threads/tuck-and-roll.786652...

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Note added at 4 hrs (2019-06-13 12:40:07 GMT)
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tuck and roll seat of a motorcycle. مقعد ذات ثنايا للدراجة النارية / سرج ذات ثنايا للدراجة التارية