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MOONCOOL Oversized Bike Seat with Adjustable Backrest, 12" × 12" Wide Padded Saddle for Bicycles, Tricycles & Exercise Bikes, Memory Foam & Shock-Absorbing, Waterproof PU, Fits 7/8" Seat Posts

  • Based on 759 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, May 1
Order within 22 hours and 28 minutes
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Color: Black with Grey


Features

  • Spacious Backrest Seat: Seat base dimensions: 11.5" length x 9.5" width, providing extra comfort
  • Ergonomic Support: Mooncool backrest seat offers wider support than typical saddles, reducing rider fatigue
  • Versatile Application: Fits standard 7/8" seat posts, ideal for adult tricycles, trikes, bikes, and various bicycle styles
  • Sturdy Construction: Made from durable iron and polyurethane materials
  • Long-Lasting Comfort: Designed to withstand regular use while maintaining comfort over time

Brand: MOONCOOL


Color: Black with Grey


Product Dimensions: 9.5"L x 11.5"W x 13.8"H


Material: Iron, Polyurethane


Outer Material: Polyurethane (PU)


Brand Name: MOONCOOL


Item Weight: 2.48 Kilograms


Manufacturer: MOONCOOL


Manufacturer Part Number: CKKBAZ-HY


Model Number: CKKBAZ-HY


Color: Black with Grey


Item Dimensions L x W x H: 9.5"L x 11.5"W x 13.8"H


Pad Type: Polyfoam


Weight Capacity Maximum: 300 Pounds


Bike Type: Tricycle


Material Type: Iron, Polyurethane


Outer Material: Polyurethane (PU)


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very comfortable.
Color: Black w/ Red
I just bought an electric tricycle. The seat was hard on it, so I upgraded to this seat with the back rest huge improvement. Do yourself a favor if you buy any bike and the seat is uncomfortable, replace the seat with this one. You will not be sorry.
Reviewed in the United States on February 13, 2026 by Rhonda K. W. Anderson

  • Solid chair seat
Color: Black with Grey
Needed a different seat for my MoonCool Trike bike since the one that came with the trike is too small. This MoonCool bike seat has a large cushioned seat area and the back is adjustable. The seat will slide back or forward only by .5-1”, but the back rest will adjust up and down . It definitely looks and feel like much better quality than the seat that came with my trike. ... show more
Reviewed in the United States on February 22, 2025 by Kim P

  • Comfortable and nice color
Color: Light Brown
Comfortable saddle. Nice color and works well. The back does give additional support but also limits the ability to get on or off the bike from the back of seat.
Reviewed in the United States on January 18, 2026 by A Customer111

  • does fit tk1
Color: Black with Grey
someone said it didn't fit there tk1, well it does. the 7/8 round post holder is easy to remove. then flip over your old seat over loosen the hex head bolt till the rail mount opens up and mount the new seat on the rails. tighten hex head works great, seems comfortable but like the back plate for the sturdiness so I don't slide backward 8 /18/25 I have an update while switching the bike stem on to the seat I discovered that in China it's ok to match an iron bolt with an aluminum locking nut. needless to say I stripped it. I replaced the bolt with a 10mm hex head bolt 1.50 thread about 1/2 longer and a 10 mm nylon nut drill out aluminum locking nut you need it put the nut on top of that works great really tight. The old bolt thread size is 1.25 couldn't find, don't forget small thin washer for the base of the bolt hope this helps ... show more
Reviewed in the United States on August 16, 2025 by gerald

  • Sturdy well made seat but does not fit my needs.
Color: Black
I bought this as a replacement seat for my electric scooter. It arrived on time & well packaged. It seems very sturdy and good materials, sadly it was not big enough for my needs. I'm a big person and it was a bit uncomfortable for me. If it were just a few inches bigger & the front tip shorter I would have definitely kept it. ... show more
Reviewed in the United States on July 8, 2024 by Nicky R.

  • Easy install and backrest rocks
Color: Black w/ Red
Totally awesome with backrest for use on my Ebike
Reviewed in the United States on April 7, 2026 by Darrel Abbe

  • Cheap seat
Color: Light Brown
The bars were welded to close together to get the bolts in so i had to drill out the holes slightly. The mounts were welded on crooked so the seat leans to the side. The seat itself is made of thin plastic. I weigh 200lbs and if I lean either way slightly the seat wants to bend and dump you off. Complete junk. ... show more
Reviewed in the United States on December 19, 2022 by DHL

  • Comfort
Color: Black w/ Red
I like it nice and soft
Reviewed in the United States on October 28, 2025 by michael meyer

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