Drive Cup for BD9 Gear Diff (Steel) [Yokomo] B9-501GSA

Drive Cup for BD9 Gear Diff (Steel) [Yokomo] B9-501GSA

Marsoni

M251S

$20.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Drive Cup for BD9 Gear Diff (Steel) [Yokomo] B9-501GSAYOKOMO Drive Cup for BD9 Gear Diff (Steel made ) (B9 501GSA) BD9 gear differential drive cup. Made of highly durable steel. 2 pieces. Supported chassis YR 10F DP DIB2 DP DIB2R DP DIB2A DP DIB2RA DP DIB DP DIBR DP DIBG DP DIBRS DP DIBL DP DIBLR DP DIBLG DP DIBRSB DP DPMS DP DPRA DP DPRH DP YD4MR B MAX2MR2 B MAX2MR3 B MAX2RS GT5 R35 GT5 SC430 GT3 REA GT3 IS350 GT3 B4 GT3 CAX GT3 BRZ GT3 AHP GT B GT5 R2 GT5 RS2 MRTC YD2 YR R12C3 YR R12C31 SD RF01 SD RF01

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I’ve had this calculator for around a month and it’s really good. I’m currently in Pre-Calc 2 and this thing is amazing; I haven’t used the graphing feature quite a lot, but it has a bunch of other neat features besides that. Features that have really helped me is where the calculator gives exact radical (square root) values of trig functions (Ex. sin 60° = √3/2) and giving exact radian values such as pi/6 instead of a decimal. Which was the one thing that made me stop using my TI-84 (other than it was big and slow). It also solves equations up to 6th degree and has a very easy-to-use UI that doesn’t take that long to get used to. Less commonly used functions show up on screen by pressing the F1-F6 keys which is a lot better than the TI’s navigating through 4 different menus. Overall, it’s a wonderful calculator that has awesome features even if you don’t use it for graphing (which i haven’t been doing very much graphing lately) ESPECIALLY for the price (it goes on sale for ~$50 often)

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Reviewed in the United States on May 1, 2024

Verified Purchase

Giselle Trejos

West Palm Beach, US

★★★★★ 5

A super option

Color: White, Color: White

This calculator is excellent, I loved all its programs and what additional you can make programs and enter them. There are some tutorials on YouTube that clearly explain their use from 0

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Reviewed in the United States on February 11, 2026

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Nick Zak

Dallas, US

★★★★★ 5

Might be the best watch… ever.

Possibly the perfect watch. Easy to read display and light. Great functions. Lightweight and comfortable to wear. Tough solar to keep charged and multiband 6 for accurate timekeeping. Love it. Excellent value too!

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Reviewed in the United States on May 28, 2026

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Aldo Munoz

Boise, US

★★★★★ 5

Set it and forget it — solar & atomic is worth it

This is easily one of the most practical watches I’ve owned. The solar charging is a game changer — no worrying about battery changes. As long as it gets some light, it just keeps going. The atomic timekeeping is another big plus. It updates itself, so it’s always accurate without you having to mess with it. It still has that classic G-Shock toughness, so I don’t think twice about wearing it to work, the gym, or outside. It’s durable, lightweight, and more low-profile than some of the bigger G-Shocks, which I actually prefer. The display is clean and easy to read, and once you learn the buttons, everything is straightforward. If you want a tough everyday watch that basically runs itself, this is a solid upgrade over the standard models.

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Reviewed in the United States on April 25, 2026

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eskimo_dan

Birmingham, US

★★★★★ 5

Best Watch Ever Made

I am a watch collector. I have about 50 watches - of all different sorts: automatic, quartz, analog, digital, high-end (luxury - like omega) and low-end (timex). This watch is hands-down the best watch in my collection. Sure I wouldn’t wear it with a suit. But in literally every other occasion this watch is perfect. It’s always accurate to the second - you never have to set it. And it syncs really well with atomic time (here in the US and in the UK from my experience). Also the world time feature is perfect when traveling - simply push the top two buttons in world time mode to switch the new time zone to your current time zone. Its button configuration is perfect compared to other digital watches. And the battery will last basically indefinitely. Perhaps you might need to add a new solar powered watch battery replacement once in your lifetime if the battery stops taking any charge. The stopwatch and timer are useful for me daily. And the hourly signal on the alarm mode is great when you want to be more mindful of the time. Sure Casio makes other similarly functioned watches that are just as fun. But I think where this reigns supreme over those is its classic design, perfect functionality and button layout, and its size. And it beats a smart watch in terms of battery life, durability, and reliability. I promise you won’t dislike this watch - unless you think the design is ugly… which I understand if you do. But give it a chance and you might discover the joy and security this watch gives me.

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Reviewed in the United States on April 25, 2025