Simplification Rule #6: Think in Terms of Ratios
Ratios bring a sense of proportion to vague or ambiguous situations. For example, the 2021 Sienna battery is a mere 1.8Wh. You might recharge three or four times, or a 1:4 ratio. A 1:4 ratio is a high cost to benefit ratio. The RAV4 Prime 18Wh battery is a 1:40 recharge ratio. I generally find 1:50 ratios to be the compelling point for any type of rechargable battery.
I don't think the 2021 Sienna is a high value. I think the "Prime" trim models are high value. Don't let desires interfere with needs. I need a 40:1 recharge ratio to justify buying a hybrid. You can compress all the information about the buying decision down to this one ratio.
Actually, a 6:1 ratio, but not even close to 40:1.
Battery: 320 Wh (160 Wh range extender sold separately)
Motor: Specialized SL 1.1, torque = 35 Nm, nominal watts = 240, peak watts = 240
Charge Time: 2 hrs 20 mins
You can also evaluate from a operation-to-charge ratio. The longer you can ride on a single charge, the more enjoyable and economical.
I find the ratios particularly useful regarding power modes. My goal is a 2:1 human-to-motor-power ratio. The battery range improves. This means setting the power level to very low levels.
Ternary ratios are often more powerful than binary ratios. You might be more interested in a Venn diagram, or ternary ratio, to evaluate more complex situations. A symmetrical ternary ratio is 1:1:1. You are looking at a computer ternary ratio of Red, Green and Blue (RGB) colors.
If you read prior posts, your questions will be answered. The "eBike" i am interested in is a Specialized Creo Evo, which are currently sold out in USA. I want to ride the Tour Divide from Canada to Mexico. I need a car with 110VAC inverter to recharge the battery in the Rockies wilderness.BikeMike,
You have pages and pages of car comments.
What does any of it have to do with ebikes?
Are you thinking of purchasing an ebike?
Certainly underbiked. I like the removeable battery in the Domaine. The Creo main battery is practically fixed. The Domaine is easier to recharge and lighter when a battery is unnecessary. I will test ride a Domaine.I have a friend who has one of these, it's very nice and you can fit 38s in it. https://www.trekbikes.com/us/en_US/domane-plus-lt/
Buy a second battery and have your sag driver charge it up somewhere during the day.
A gravel bike is a bit underbiked for the TD IMO, but whatever floats your boat.
Maybe a few pairs of rims with different tires will provide enough flexibility to deal with the wide variety of conditions?I have a friend who has one of these, it's very nice and you can fit 38s in it. https://www.trekbikes.com/us/en_US/domane-plus-lt/
Buy a second battery and have your sag driver charge it up somewhere during the day.
A gravel bike is a bit underbiked for the TD IMO, but whatever floats your boat.
Maybe a few pairs of rims with different tires will provide enough flexibility to deal with the wide variety of conditions?
I forget what combination of rim and tire yields greatest air volume. Tire clearance is a crucial factor. I think the bike can be tweaked to cover a surprising amount of overlap. I will have to think about this carefully. The car causes me most concern.Depends, although that is a solution I use on several bikes. A wheelset with 32s for mostly road and a little dirt, and another with 42s for the inverse for example. You could do the same with an emtb hardtail with a rigid front fork and have a wider tire parameters, but I'm not aware of an e gravel that can fit tires that large. You could manage on dirt roads ok, although some are supposed to be pretty nasty, but once you get into single track, you'd struggle in rocky sections. I'm sure it's been done, but it wouldn't be my choice for that exact route. You could likely modify the route to suit your bike though.
I tend to get out of the saddle at every opportunity. When going downhill on a full suspension bike or uphill on a road bike. I like to feel the pressure of my foot on the pedals. I like to feel the tires.Depends, although that is a solution I use on several bikes. A wheelset with 32s for mostly road and a little dirt, and another with 42s for the inverse for example. You could do the same with an emtb hardtail with a rigid front fork and have a wider tire parameters, but I'm not aware of an e gravel that can fit tires that large. You could manage on dirt roads ok, although some are supposed to be pretty nasty, but once you get into single track, you'd struggle in rocky sections. I'm sure it's been done, but it wouldn't be my choice for that exact route. You could likely modify the route to suit your bike though.
I find small amounts of adjustments are much better than larger amounts for bikes. Minimal adjustments generally makes me happiest. Just about any bike can be made to perform some task. The question is how to optimize under certain circumstances. The answer probably lies in inner rim width. I forgot the exact inner rim width on Creo. I'm guessing 25mm? Anyhow, it was ideal.Depends, although that is a solution I use on several bikes. A wheelset with 32s for mostly road and a little dirt, and another with 42s for the inverse for example. You could do the same with an emtb hardtail with a rigid front fork and have a wider tire parameters, but I'm not aware of an e gravel that can fit tires that large. You could manage on dirt roads ok, although some are supposed to be pretty nasty, but once you get into single track, you'd struggle in rocky sections. I'm sure it's been done, but it wouldn't be my choice for that exact route. You could likely modify the route to suit your bike though.
Depends, although that is a solution I use on several bikes. A wheelset with 32s for mostly road and a little dirt, and another with 42s for the inverse for example. You could do the same with an emtb hardtail with a rigid front fork and have a wider tire parameters, but I'm not aware of an e gravel that can fit tires that large. You could manage on dirt roads ok, although some are supposed to be pretty nasty, but once you get into single track, you'd struggle in rocky sections. I'm sure it's been done, but it wouldn't be my choice for that exact route. You could likely modify the route to suit your bike though.
Specialized’s Turbo Creo SL Expert Evo is an e-bike that does damn near everything well, and it’s poised to change cycling forever.
The spec is a little strange. It’s slightly more road-centric than I feel a dedicated gravel bike should be (I’ll get deeper into that in the review section, below). But the biggest head-scratcher is the 38mm Pathfinder Pro rubber — it’s far too asphalt-focused for my liking. You have a smooth center for faster rolling on pavement, but for the dedicated gravel bike in Specialized’s Creo lineup, I wanted more grip, especially on the boneyard-bumps and washboard that most gravel rides feature. Luckily there’s room on the 700c rims that come with the Evo for a higher volume, 42mm tire with lots more cornering knob. For bikepacking, you could swap to a smaller, 27.5-inch rim and run up to two-inch-wide (50mm) tires.
Depends, although that is a solution I use on several bikes. A wheelset with 32s for mostly road and a little dirt, and another with 42s for the inverse for example. You could do the same with an emtb hardtail with a rigid front fork and have a wider tire parameters, but I'm not aware of an e gravel that can fit tires that large. You could manage on dirt roads ok, although some are supposed to be pretty nasty, but once you get into single track, you'd struggle in rocky sections. I'm sure it's been done, but it wouldn't be my choice for that exact route. You could likely modify the route to suit your bike though.
FRAME | FACT 11r carbon, Open Road Geometry, front/rear thru-axles, fully integrated down tube battery, internal cable routing, fender/rack mounts, Boost™ 12x148mm |
FORK | Future Shock 2.0 w/ Smooth Boot, Boost™ 12x110mmmm thru-axle, flat-mount disc |
SEAT BINDER | Alloy, 30.8mm |
STEM | Future Stem, Pro |
HANDLEBARS | Specialized Adventure Gear Hover, 103mm drop x 70mm reach x 12º flare |
GRIPS | Roubaix S-Wrap |
SADDLE | Body Geometry Power Sport, hollow Cr-Mo rails |
SEATPOST | X-Fusion Manic Dropper Seat Post, 50mm of travel |
FRONT BRAKE | Shimano GRX 810 hydraulic disc |
REAR BRAKE | Shimano GRX 810 hydraulic disc |
REAR DERAILLEUR | Shimano RX812 GX, Shadow Plus, 11-speed |
SHIFT LEVERS | Shimano GRX 810 hydraulic brake levers, mechanical shifting |
CASSETTE | Sunrace, 11-speed, alloy spider, 11-42t |
CHAIN | Shimano HG601, 11spd |
CRANKSET | Praxis, Forged alloy M30, custom offset |
CHAINRINGS | Praxis, 46T, 110BCD |
FRONT TIRE | Pathfinder Pro 2Bliss Ready, 700x38mm |
REAR TIRE | Pathfinder Pro 2Bliss Ready, 700x38mm |
INNER TUBES | Presta valve, 48mm |
FRONT WHEEL | DT R470 Boost, 12x110mm |
REAR WHEEL | DT R470 Boost, 12x148mm |
MOTOR | Specialized SL 1.1, custom lightweight motor |
UI/REMOTE | Specialized TCU, 10-LED State of charge, 3-LED Ride Mode display, ANT+/Bluetooth® |
BATTERY | Specialized SL1-320, fully integrated, 320Wh |
CHARGER | Custom charger, 48V System w/ SL system charger plug |
WIRING HARNESS | Custom Specialized wiring harness w/ chargeport |