Choosing the right 2 stroke bicycle engine mount depends on your frame, engine size, and mounting hardware. This guide compares five top mounts to help you pick the best for your build. The selections cover frames like 3.4L Felt Faker and 2.4L bikes, with options tailored for various downtube diameters and bolt spacings. Suitable buyers include DIY enthusiasts upgrading a lightweight kit, riders replacing a worn mount, and builders seeking a durable, easy-to-install solution.
Summary of selected products:
- CDHPOWER Imporved Silver CNC Universal Motor Mount 1.65″ (42.5mm) – 3.4L Felt Faker compatible
- Universal mounting Bracket to Bigger Down Tubes for 2 Stroke Gas Motor Engine kit – 48cc/50cc/66cc/80cc
- ZZRSDAN Universal Mounting Bracket for 2 Stroke Gas Motor Engine Kit – 66cc/80cc
- Improved Silver Universal Motor Mount 1.5″ – 2.4L Gas Frame compatibility
- Improved Black Universal Front Motor Mount 1.5″ – 2.4L Gas Bike Frame compatibility
CDHPOWER Imporved Silver CNC Universal Motor Mount 1.65″
Key features: Inner Diameter 1.65″ (42.5mm); compatible with all 2 stroke motors regardless of front mount width; includes M8X30mm screw and two M6X30mm screws; suitable for CDH YD100 and CDH PK80 engines and the 3.4L Felt Faker frame.
Best for: Builders using a 3.4L Felt Faker gas frame or similarly sized frames seeking a universal 1.65″ mount with standard mounting hardware. This option is reliable when you need compatibility across multiple 2-stroke brands with common downtube diameters.
Limitation: Designed primarily for 1.65″ downtube; verify your engine’s front bracket width and bolt compatibility to avoid fit issues.
Universal mounting Bracket to Bigger Down Tubes for 2 Stroke Gas Motor Engine Kit
Key features: Inner Diameter of U-type bolt 2.047 inches (52mm); thickness 2.9mm steel; compatible with 1.5″ to 2″ stud spacing; front mount bolts 6mm and 8mm; two 8mm bolts included for engine mounting; confirm engine front bolt size before purchasing.
Best for: Riders with larger down tubes who need a robust, wide-mouthed bracket and are using engines with matching 6mm or 8mm studs. This bracket is a solid choice when frame downtube width exceeds standard 1.5″ mounts.
Limitation: The product notes emphasize checking sizes in photos; misalignment can occur if your engine bolts don’t match the bracket’s spacing.
ZZRSDAN Universal Mounting Bracket for 2 Stroke Gas Motor Engine Kit
Key features: Inner diameter 1.5″ (38.1mm); compatible with 66cc/80cc and 48cc 2-stroke bikes; universal mounting for larger down tubes; supports 1.5″ to 2″ stud spacing; suited for front mount bolts 6mm and 8mm.
Best for: Riders with 1.5″ to 1.75″ downtube diameters seeking a universal mount for 66cc/80cc engines, especially on frames with wider down tubes.
Limitation: Compatibility depends on stud spacing and bolt sizes; verify frame and engine bolt dimensions before buying.
Improved Silver Universal Motor Mount 1.5″
Key features: Inner diameter 1.5″ (38.1mm); fits CDH 2.4L gas frames; compatible with 48cc/66cc/80cc/yd100 engines; pole pedestal designed for broad compatibility across brands and motor widths.
Best for: Builders operating a 2.4L frame who want wide compatibility with several 2-stroke kits and reliable downtube fit.
Limitation: Some frames may require additional hardware or spacers if downtube geometry differs from standard 38.1mm sizing.
Improved Black Universal Front Motor Mount 1.5″
Key features: Inner diameter 1.5″ (38.1mm); fits 38.1mm downtube; pedestal designed for universal compatibility with 48cc/66cc/80cc/yd100 engines; front mount bolts 6mm and 8mm supported.
Best for: Riders with 1.5″ downtube frames seeking a black mount with improved pedestal for better compatibility across engine brands.
Limitation: Aesthetics and fit may vary by frame; confirm downtube diameter and bolt type prior to purchase.
CDHPOWER Black Universal Mounting Bracket for 2 Stroke Gas Motor
Key features: Black universal mounting bracket; 66cc/80cc front bracket support; bracket clamp width 41mm; designed for many 2-stroke gas motors; direct support contact for questions and assistance.
Best for: Those using 66cc/80cc engines who want a compact, black aesthetic bracket with broad compatibility. Helpful when clamp width is close to 41mm.
Limitation: The product note invites customer support if issues arise; verify clamp width against your engine front bracket.
Improved Black CNC Universal Motor Mount 1.65″
Key features: 1.65″ (42.5mm) inner diameter; fits CDHPOWER 3.4L Felt Faker gas frame; compatible with front motor mount bolts 6mm and 8mm; includes 1 M8X30mm and 2 M6X30mm screws.
Best for: Builders with a Felt Faker 3.4L frame seeking precise fit for a 42.5mm downtube diameter and standardized bolt sizes. This is a high-compatibility option for CDHPOWER frames.
Limitation: Specific to 42.5mm downtubes; verify your frame diameter before purchase.
Buying Guide: Key Purchase Considerations
What downtube diameter does your bike have? Most mounts list inner diameter measurements. Choose a mount that matches or is adjustable to your frame’s downtube size to ensure a secure fit.
What engine size and bolt spacing are you using? Engines range from 48cc to 80cc and beyond. Check bolt type (6mm or 8mm) and whether the bracket supports your engine’s front mount bolts.
Is your frame a specific model or a generic down tube? Some mounts are tailored for frames like the 3.4L Felt Faker; others are universal for wider or smaller tubes. If in doubt, select a universal design with broader downtube compatibility.
What mounting hardware is included? Some products include screws in M6 and M8 sizes. Confirm that the included hardware matches your engine’s mounting requirements.
What is the avoidance or limitation? If your frame has unusual spacer needs or nonstandard stud spacings, a wide-mouthed bracket or adjustable pedestal may be necessary. Always verify dimensions against your frame and engine specs.
FAQ
- What downtube diameter is most common for 2-stroke bikes?
Most common are 1.5″ (38.1mm) and 1.65″ (42.5mm) downtubes, but always measure your frame precisely. - Do these mounts fit every 2-stroke engine?
They cover a broad range (48cc–80cc and similar), but confirm bolt spacing and front-mount compatibility with your specific engine. - Should I prefer universal or frame-specific mounts?
Universal mounts offer broad compatibility; frame-specific mounts may ensure a tighter, more secure fit on certain models. - Are extra mounting screws included?
Some listings include M6 and M8 screws; if not, purchase compatible hardware separately to match your bolts. - What safety considerations exist when mounting a gas engine?
Ensure proper alignment, secure fastening, and torque to avoid loosening or misalignment during operation.