Saturday, January 15, 2022

Monocular Binoculars Telescope

Monocular telescopes
Binoculars

traditional Porro prism
straight Roof prism

Porro Prism vs Roof Prism Binoculars

Binocular Glass 101: BK7 vs BAK4 and Porro Prism vs Roof Prism

Saturday, January 08, 2022

臺灣車輛牌照

臺灣車輛牌照 motorcycles / bikes 

大型重型機車 I 紅牌 汽缸總排氣量 550cc,電動馬達 54 馬力 
大型重型機車 II 黃牌 250cc 40hp 
普通重型機車 50cc 5hp 

Large/big single-cylinder motorcycles, Kawasaki no carbs vibration > parallel-twin 

The most reliable motorcycles Yamaha, Suzuki, Honda, Kawasaki, Harley-Davidson, Triumph, Ducati, BMW 

2023 Market Share of Major Motorcycle Manufacturers in the US Harley-Davidson, Honda > Yamaha, Kawasaki > Suzuki, BMW 

550+ 
 Suzuki SV650 ABS street v-twin 645cc ABS 437lbs wb56.9" 30.9" 3.8gal 75hp 47lb-ft $8,000+$560 
 Suzuki DR650S dualsport singlecarburetor, air+oil cooled 366lbs wb58.7" 33.2" no-abs 3.4 gal $7,099+$650  
 Yamaha MT-07 hyper naked inline-twin 689cc FI ABS 406lbs wb55.1" 31.7" 3.7gal 67hp 45lb-ft $8,199+$550 
 Kawasaki Vulcan S 火神 sport cruiser p-twin 649cc DFI ABS 498lbs wb62" 27.8" 3.7gal 46lb-ft $8,000 (2023 $8000 total)
 Kawasaki Z650 p-twin DFI 649cc 415lbs wb55.5" 31.1" slipper clutch 4gal 64hp 48.5lb-ft $8,649+$450 (2023 $8,500 total) 
 Kawasaki KLR650 S dual sport single, liquid-cooled DFI 652cc 5-speed high center of gravity heavy 460lbs wb59.6" 32.1" ABS 6.1 gal 39lb-ft $7,199+$735 
 Honda CB650R inline-4 445lbs $9,400+$600 
 Honda XR650L dual single carburetor air-cooled 644cc 346lbs 37" no-ABS 2.8gal $7,000 
 Fuell Fllow 1S 47hp 553lb-ft 10kwh 100 miles $10,694 

300+ 
 Yamaha MT-03 hyper naked inline-twin 321cc FI ABS 373lbs wb54.3" 30.7" 3.7gal 41.4hp 21.8lb-ft $5,000+$550 
Kawasaki new rider suggested models 
 Kawasaki Eliminator street cruiser p-twin liquid cooled DFI 451cc 6-speed 388lbs wb59.8" 28.9" front/rear ABS slipper clutch 3.4 gal 49hp 31.7 lb-ft $6,949+$450 
 Kawasaki Z400 street supernaked p-twin 399cc 6-speed 364lbs wb53.9" 30.9" ABS slipper clutch 3.7gal 45hp 28 lb-ft no 2024 (2023 $5635 total)
Honda Rider Education Street models 
 Honda Rebel 500 ABS p-twin 471cc FI 6-speed wb58.7" 27.2" 408lbs slipper clutch 3gal 47hp 33lb-ft $6,800+$600 
 Honda CB500X adventure p-twin 471cc fuel-injection 6-speed 439lbs wb56.8" 32.8" front/back ABS slipper assist clutch 4.7gal 47hp 32lb-ft $7,200+$600 
 Honda SCL500 scrambler wb58.4" 31.1" 419lbs slipper assist clutch 3.2gal 47hp 32lb-ft $6,800+$600 
KTM 390 Duke naked single liquid-cooled FI 373cc 6-speed ABS slipper clutch 32.7" 43hp 27.3lb-ft $5,899+575 
KTM 390 Adventure SW travel 33.7" 3.8gal $7,399 
Husqvarna Vitpilen 401 白劍 390 Duke low riding position 333lbs 2.5gal 32.9" $5,649+575 
Husqvarna Svartpilen 401 黑箭 335lbs 2.5gal 65mpg 32.9" $5,649+575 

 LiveWire S2 Del Mar 84hp 10.5kwh nominal 70 miles range 434lb $15,499 
 Zero Motorcycles DS 68HP 14.4kwh max 12.6kwh nominal 98 miles $15,995 
 Zero Motorcycles S 2024+ 68 hp 101 miles $14,995 
 Zero Motorcycles FX 46hp 7.2kwh 67 miles $12,495 
 Fuell Fllow 1S 85mph 47hp 553lb-ft 10kwh 100 miles $10,694 

 Kymco AK 550i ABS scooter 54hp $9,899 

大型重型機車 II 黃牌 引擎總排氣量 250-550cc,electric motor 40-54HP 
 Honda CRF300L 286cc ABS tall $5,699+$600
 Kawasaki KLX300 292cc tall $6,199+$435 
 Suzuki DR-Z400S $7,199+$560 tall > DR650S

普通重型機車 白牌 engine volume 50-250c.c.,5-40HP 
 Yamaha XT250 249cc $5,299+$575 
 Kawasaki KLX230 S ABS lower seat height 233cc $5,290+$545 
 Honda XR150L 149cc $2971+$300 

普通輕型機車 綠牌 cylinder 總容量 50cc,1.34-5HP or > 45km/h 

電動小型輕型機車 馬達 < 1.34HP and < 45km/h 

motorcycle / Sondors / Solar Aptera / LiveWire 2023 $8,500