The 10 Best Ttr 250 Big Bore Kits (2022 reviews)

The Rutu Ttr 250 Big Bore Kit is the most feature-rich kit on the market today. The rutu ttr 250 big bore kit works great and there is much more. This is one of the best upgrades you can make to your 50cc scooter. And, this is used for air filter, is built for high performance and it is designed for easy install.

The kit comes with an oil pump and it is perfect for high quality. Most importantly, the rutu ttr 250 big bore kit is great for intake manifold and it comes with a wrist pin.

Most buyers agree that the kit is a gy6 50cc. Yes, it will for sure fit and work great. Moreover, a few also found that the kit included everything but jets. Overall, the tone of buyers is very positive and we believe that the kit suits the purpose.

Top Customer Quotes:

This will work for your bike.
This fits any 49cc w/gy6 style engine.
We have 2 versions, 64mm and 69mm valve length version.s Please confirm before ordering.
This is easy to install and it allows for easy installation.

Best For Great Price: Bbr Motorsports Ttr 250 Big Bore Kit

Buy on Amazon

For a low asking price, bbr Motorsports TTR 250 big bore kit has managed to overwhelm their customers by packing as many features as they could. The Bbr Motorsports Ttr 250 Big Bore Kit comes with a base gasket and it is used for torque specs. Bbr aluminum cylinder, piston, rings, piston pin, clips, performance camshaft, heavy-duty valve springs, rockers with tappet adjusters and gasket kit. And, the kit is ready to ship and it is built with great instructions.

The kit fits the following applications. Lastly, the bbr motorsports ttr 250 big bore kit is reliable, is great for a great price and it is designed for easy install.

Most buyers quickly discovered that the kit would only work on the xr100 and crf100 bikes. In addition, they also found that the kit is an easy upgrade and can be done in a day if all goes well. In addition, they strongly agree that the kit has awesome customer service and also it is obviously not going to work for you. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:

These make no mention of setting the ring end gap for the kit.
This is the kit to get for easy bolt on power.
One of the newcomers and featured product.

RELATED: Best 170 Cc Big Bore Kits

Best With Thread Lock: Top Notch Parts Ttr 250 Big Bore Kit

Buy on Amazon

We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate kit. The Top Notch Parts Ttr 250 Big Bore Kit is exactly that - it's a simple kit that hits all the right notes. The top notch parts ttr 250 big bore kit is perfect for the head cover gasket and it is used for best quality. Make sure this fits by entering your model number. Also, the kit looks good and it is great for fuel filter.

The kit is used for head gasket, comes with a base gasket and it comes with a gasket maker. Finally, the top notch parts ttr 250 big bore kit is used for oil filter and it fits with a thread lock.

Almost all customers opine that the kit is cheaper than anywhere else. Further, a few strongly agree that the kit is perfectly and fast delivered. Further, they say that the kit is easy to rebuild and parts are available everywhere.

Why We Like This:

Replaces oem number 12100-kcy-670 12191-kcy-672 13011-kcy-670 13101-kcy-670 90601-ka5-000 13111-kcy-670 12251-hn1-003 12391-kcy-671 14560-kcw-851.
Parts fit: 1999 - 2008 honda trx 400ex.
Good brand reputation.

RELATED: Best Big Bore Gasket Kits

Best For Great Quality: Weiyingsi Ttr 250 Big Bore Kit

Buy on Amazon

The Weiyingsi Ttr 250 Big Bore Kit's superior materials make sure that it ages well with use. The weiyingsi ttr 250 big bore kit comes with racing ac cdi, ignition coil and racing spark plug included. Manufacturer says: We have 2 versions, 64mm and 69mm valve length version.s. And, the kit is good for intake manifold and it comes with an oil pump.

Lastly, the weiyingsi ttr 250 big bore kit is easy to install, is many more and it is perfect for great quality.

Almost all buyers found that the kit was made for Chinese scooters. Also, a few strongly agree that the kit fits like a glove and also will fit icebear well. Overall, many have used the weiyingsi ttr 250big bore kit for more than a few months without letup, and it shows no sign of giving up.

Top Customer Quotes:

This fits on most any 50cc scooter.
This is one of the best upgrades you can make to your 50cc scooter.
This allows for easy installation and it worked perfectly.
This comes with a wrist pin and it works well for good quality.

Best For Spark Plug: Jdmspeed Ttr 250 Big Bore Kit

Buy on Amazon

The Jdmspeed Ttr 250 Big Bore Kit is capable of outshining several other kit featured in this list in overall features for the price point. The jdmspeed ttr 250 big borekit would be perfect with fast shipping and it is great for high quality. Make sure this fits by entering your model number. Furthermore, this includes 1x cylinder, 2x gaskets, 1x piston, 1x piston pin, 2x piston rings, 1x sleeve bearing, 2x cir-clips, 4x head cylinder studs, 4x stud nuts, 1x free spark plug. Most importantly, the jdmspeed ttr250 bigbore kit looks good and it is easy to install.

"Easy to install if you work on a two - stroke. " - says, one customer. In conclusion, for almost all customers, the kit was what they were looking for.

Why We Like This:

New complete high quality 40cc big bore kit.
Good brand reputation.

Best For Big Bore Cylinder: Kids Atv Parts Ttr 250 Big Bore Kit

Buy on Amazon

The kids ATV parts ttr 250 big bore kit is suitable and reliable and fits well with your daily purpose. The kids ATV parts ttr 250 big bore kit is horizontal and it fits on apirilia vino. Please check the picture before you buy. Furthermore, it comes with a wrist pin diameter and it comes with a single-cylinder.

The kit runs great and there is much more. Lastly, the kids ATV parts ttr 250 big bore kit is perfect for high quality and it is used for head gaskets.

Most customers opine that the kit will work on your yamaha pw50. In addition, they also found that the kit provides decent power, lower revving good torque. In addition, a few say that this kit is from China, low low quality. Without any doubt, this kit passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:

This includes a 70cc cylinder and it comes with a wrist pin.
Only fit 2 stroke yamaha jog 50 and its clone engine.
This is great with no problems.
This is a two - stroke it will fit.

Best With Part Numbers: Mofans Ttr 250 Big Bore Kit

Buy on Amazon

Mofans is known for creating pragmatic and minimalist kit for people on the go, and its line of Mofans ttr 250big bore kit definitely falls in line with that reputation. The Mofans ttr250 big borekit is compatible with Yamaha bear tracker 250 1999. Make sure this fits by entering your model number. Moreover, it works for head gasket and it comes with a package including a cylinder. Above all, the Mofans Ttr 250 Big Bore Kit is compatible with part numbers and it comes with a base gasket.

Why We Like This:

The package included: cylinder, piston, ring set, wrist-pin, circlip set, head gasket, base gasket.
Specification: cylinder bore and stroke 71.00mm x 58.00mm; cylinder displacement 229.6cc / compression 8.7:1.
Replace part numbers: 4bd-11310-01-00, 4bd-11631-00-y0, 4bd-11610-00-00, 29u-11633-00-00, 93450-17044-00.

Best For Exhaust Gasket: Niche Ttr 250 Big Bore Kit

Buy on Amazon

Compared with other kit in this category, the Niche Ttr 250 Big Bore Kit has a convenient design. The niche ttr 250 bigbore kit works for head gasket and it is compatible with part numbers. Make sure this fits by entering your model number. Furthermore, this includes a 94mm big bore cylinder (434cc), piston, piston rings, wristpin and circlips. Above all, the niche ttr 250 big bore kit is great for exhaust gasket and it comes with a base gasket.

As a result, customers were eager to recommend it to friends and would-be buyers.

Why We Like This:

Nikasil plated cylinder bore and stroke 94.00mm x 62.60mm.
It includes a head gasket, base gasket, exhaust gasket and coolant gasket.
Good brand reputation.

Compatible With The Following Models: N/W Ttr 250 Big Bore Kit

Buy on Amazon

The N/W Ttr 250 Big Bore Kit is suitable and reliable and fits well with your regular use. The n/w ttr 250 big bore kit is manufactured using the best materials and high technology to assure long engine life and the most efficient performance. Manufacturer says: If you are not satisfied with this, we will give you a full refund or a free exchange, Email us if you have any questions, thanks. In addition, the kit is compatible with honda sportrax 250 2001. Most importantly, the n/w ttr 250 big bore kit is compatible with the following models.

In conclusion, for almost all customers, it was the most suitable.

Why We Like This:

Good brand reputation.
One of the newcomers and featured product.

Best For Direct Replacement: Gpa Motors Ttr 250 Big Bore Kit

Buy on Amazon

The Gpa Motors Ttr 250 Big Bore Kit's material feels more premium than its price would suggest. Moreover, the kit includes a piston kit, gasket kit, type of cylinder. Make sure this fits by entering your model number. Lastly, the gpa motors ttr 250 big bore kit is tested to exceed original equipment standards and performance.

Most customers quickly discovered that the kit fits Honda trx400 and fits to 1999, 400ex. Moreover, they strongly agree that the kit will absolutely not fit and you can’t make it fit. Moreover, a few say that the kit will fit a 2002 trx400ex. To sum up, buyers found this to be one of the best kits for daily purposes.

Why We Like This:

The products are direct replacement parts for hassle-free installation.
Fits: honda sportrax trx400 ex (1999-2008).
This product includes a piston kit, gasket kit, type of cylinder.
Std bore 85mm / displacement 397cc.