Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
Heads up, this deal has expired. Want to create a deal alert for this item?
expiredthe-press-box posted Dec 19, 2024 11:58 PM
expiredthe-press-box posted Dec 19, 2024 11:58 PM

27.5" Haven Bikes Power Wave 250W Step Thru Electric Hybrid Bike (Small or Medium)

+ Free Shipping

$450

$900

50% off
Mendham Bikes
257 Comments 56,855 Views
Visit Mendham Bikes
Good Deal
Save
Share
Deal Details
Mendham Bikes has 27.5" Haven Bikes Power Wave 250W Step Thru Electric Hybrid Bike (Silver, Small or Medium) on sale for $899.99 - $449.99 with discount code RIDETHEWAVE during checkout = $450. Shipping is free.

Thanks to Staff Member the-press-box for sharing this deal.

About this Item:
  • The Power Wave features a lightweight aluminum frame and fork, rear luggage rack, front and rear fenders and a versatile 8 speed drivetrain. The hydraulic disc brakes provide excellent stopping power. It's 250 Watt, 36V Mid-Drive Bafang motor will provide an extra power boost with higher effort pedaling, thanks to its intelligent drive unit.
  • Max Weight: 250lbs.
  • Boost Engage: Pedal Assist

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.7 out of 5 stars from customer reviews.
Please see the original post for additional details & refer to the comments below for discussion.

Original Post

Written by the-press-box
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Mendham Bikes has 27.5" Haven Bikes Power Wave 250W Step Thru Electric Hybrid Bike (Silver, Small or Medium) on sale for $899.99 - $449.99 with discount code RIDETHEWAVE during checkout = $450. Shipping is free.

Thanks to Staff Member the-press-box for sharing this deal.

About this Item:
  • The Power Wave features a lightweight aluminum frame and fork, rear luggage rack, front and rear fenders and a versatile 8 speed drivetrain. The hydraulic disc brakes provide excellent stopping power. It's 250 Watt, 36V Mid-Drive Bafang motor will provide an extra power boost with higher effort pedaling, thanks to its intelligent drive unit.
  • Max Weight: 250lbs.
  • Boost Engage: Pedal Assist

Editor's Notes

Written by SaltyOne | Staff
  • Rated 4.7 out of 5 stars from customer reviews.
Please see the original post for additional details & refer to the comments below for discussion.

Original Post

Written by the-press-box

Community Voting

Deal Score
+8
Good Deal
Visit Mendham Bikes

Leave a Comment

Unregistered (You)

Top Comments

nellenbu
550 Posts
142 Reputation
Do not order from this company. I fell for it on the last deal and it has been an absolute nightmare.

The first bike arrived damaged and unusable. They refused to honor their return policy, insisting that I either repair it myself (they sent me a link to a YouTube video wtf) or bring it to a mechanic at my own risk. Suffice to say, I opened a credit card dispute and am still fighting to retain my credit.

The second bike hadn't been shipped when the issues with the first began, so I requested a cancellation, which they confirmed. Then they shipped it anyway. I refused the delivery. It arrived at their facility 2 weeks ago and I still haven't received a refund. Another dispute was opened and I'm having to deal with that now.

Edit: just checked and the first dispute was finally resolved in my favor just this morning. Now on to the second dispute…
deucesh75
25 Posts
14 Reputation
Stay as far away from Mendham Bikes as you can. HORRIBLE company. I trust SD's and have never been burned....until the last Mendham deal. It's been a horrendous and miserable experience that has cost a dozen or so hours thus far.

I ordered one of the Able bikes in the last deal. About three weeks went by between the time of the order and when I realized I hadn't received the bike. Meanwhile, they spammed the heck out of my email account with other "promotions". I emailed the general customer service email address demanding they provide me an update. No response. About another week goes by and I get a "your order shipped" email notification. Great! Fantastic! Except that a few hours after receiving that email, I got a retraction saying they had made a mistake and my order hadn't shipped.

I emailed them to demand cancellation of the order based on the long wait and my spidey senses telling me something was off. I actually got a response within a few hours that acknowledged my request and told me the order would be cancelled. Guess what? The next day, Mendham shipped the bike. Geez. When I got the shipment notification, I started checking the tracking and noticed it took them more than a day to actually ship the bike (they just issued tracking by creating a shipping label). In the interim, I again emailed them about cancellation and warned them not to ship. No response. The bike arrived and box and interior parts were beat to hell. I put in a dispute with my credit card company, who immediately issued a confirmation of successful dispute, a sign they know what Mendham is up to. I tried several more times to demand they take the bike back. They finally responded on the third email and asked for a huge list of items. I took the bike to a charity that fixes up bikes and gives to kids in need. I'll just rely on my CC underwriter.

Please save yourself from the same headaches and from having to write an equally painful testimonial on SD by just skipping this "deal". It's not a deal and if you research online, you find the bikes are junk anyways.
pinmagic
499 Posts
175 Reputation
It's mid-drive. They require substantially less power than hub drives. They also tend to be more expensive than hub drives.

256 Comments

Sign up for a Slickdeals account to remove this ad.

Jan 14, 2025 02:29 PM
640 Posts
Joined Sep 2014
acbharath14Jan 14, 2025 02:29 PM
640 Posts
Quote from Martog :
Just to drop another data point…

I just completed a capacity test to the battery's low voltage cutoff point. From full to LVC was 10.93Ah capacity out of a claimed 11.6Ah. So the initial test shows this battery has degraded ~5.8% from calendar aging.

That's not great, but not as bad as I feared since my battery showed up fully discharged. There's a chance it may improve a bit through the first few cycles but I have my doubts.

I may cycle it a few times while I wait for a resolution on my brakes and shipping damage issues. I'll report back if anything changes.
Keep us posted on your findings. Thank you.
Jan 14, 2025 04:16 PM
640 Posts
Joined Sep 2014
acbharath14Jan 14, 2025 04:16 PM
640 Posts
Quote from Martog :
Just to drop another data point…

I just completed a capacity test to the battery's low voltage cutoff point. From full to LVC was 10.93Ah capacity out of a claimed 11.6Ah. So the initial test shows this battery has degraded ~5.8% from calendar aging.

That's not great, but not as bad as I feared since my battery showed up fully discharged. There's a chance it may improve a bit through the first few cycles but I have my doubts.

I may cycle it a few times while I wait for a resolution on my brakes and shipping damage issues. I'll report back if anything changes.
I did charge it to 80% when i first assembled it around 10 in the night. It had 30% charge when i received. I saw a drop of 4% next morning and it has stayed there for a day. Although, I am not sure if its natural to see a drop of 4% overnight, I am glad it didn't drop further without use. But something to watch out for.
Last edited by acbharath14 January 14, 2025 at 11:04 AM.
Jan 14, 2025 05:51 PM
51 Posts
Joined Dec 2007
townes75Jan 14, 2025 05:51 PM
51 Posts

Our community has rated this post as helpful. If you agree, why not thank townes75

FYI: For those with just a bent fork as the sole damage, they supposedly found some in a warehouse in South Carolina and are going to ship me one for free. I haven't received a shipping notification or anything, but customer support (through email) said they already sent it. I'll keep you posted..
1
Jan 14, 2025 06:08 PM
195 Posts
Joined Mar 2015
MartogJan 14, 2025 06:08 PM
195 Posts
Quote from townes75 :
FYI: For those with just a bent fork as the sole damage, they supposedly found some in a warehouse in South Carolina and are going to ship me one for free. I haven't received a shipping notification or anything, but customer support (through email) said they already sent it. I'll keep you posted..

That's good news!

Did they offer to pay for shop labor to do the swap or are they expecting you to do the work yourself?

I'm sure some folks will have the ability to do it themselves but maybe not everyone.
Jan 14, 2025 08:24 PM
640 Posts
Joined Sep 2014
acbharath14Jan 14, 2025 08:24 PM
640 Posts
Quote from Martog :
Just to drop another data point…

I just completed a capacity test to the battery's low voltage cutoff point. From full to LVC was 10.93Ah capacity out of a claimed 11.6Ah. So the initial test shows this battery has degraded ~5.8% from calendar aging.

That's not great, but not as bad as I feared since my battery showed up fully discharged. There's a chance it may improve a bit through the first few cycles but I have my doubts.

I may cycle it a few times while I wait for a resolution on my brakes and shipping damage issues. I'll report back if anything changes.
Also, I am curious about the wattage. Even though specs on the website says 250 watt, the box I received on the bike says 350 Watt. I haven't actually checked the battery but curious to know what is the right wattage?
Jan 14, 2025 09:59 PM
195 Posts
Joined Mar 2015
MartogJan 14, 2025 09:59 PM
195 Posts

Our community has rated this post as helpful. If you agree, why not thank Martog

Quote from acbharath14 :
Also, I am curious about the wattage. Even though specs on the website says 250 watt, the box I received on the bike says 350 Watt. I haven't actually checked the battery but curious to know what is the right wattage?

I wouldn't get too caught up in motor wattage specs. It is mostly whatever the manufacturer wants to claim it is and programs the controller accordingly - and these are all nominal ratings. Actual measured ratings will vary greatly.

So at 36V and 250W the controller should be programmed (or using the appropriate shunt) to provide just under 7A of power. At 350W it would be 9.7A. Same hardware different programming.

But wait, there's more…. The stated watts is really more about what the motor manufacturer says the motor is safe to run at for an extended period of time. You can push 2000W through a 250W motor - just not for long. Every e-bike motor will surge above its rated/programmed capacity for a short period of time until the controller gets warm or ramps down the power. You may get 500W at the start of a hill on a 250W bike for a short while. But once on the flats the bike will settle into a lower wattage consumption per its programming.

Keep in mind that EU specs require a PAS bike to be limited to 250w nominal so that is probably why these were re-rated to 250W. It's all a bit of a smokescreen in reality. I doubt they actually made any changes whatsoever.
1
Jan 14, 2025 10:51 PM
640 Posts
Joined Sep 2014
acbharath14Jan 14, 2025 10:51 PM
640 Posts
Quote from Martog :
I wouldn't get too caught up in motor wattage specs. It is mostly whatever the manufacturer wants to claim it is and programs the controller accordingly - and these are all nominal ratings. Actual measured ratings will vary greatly.

So at 36V and 250W the controller should be programmed (or using the appropriate shunt) to provide just under 7A of power. At 350W it would be 9.7A. Same hardware different programming.

But wait, there's more…. The stated watts is really more about what the motor manufacturer says the motor is safe to run at for an extended period of time. You can push 2000W through a 250W motor - just not for long. Every e-bike motor will surge above its rated/programmed capacity for a short period of time until the controller gets warm or ramps down the power. You may get 500W at the start of a hill on a 250W bike for a short while. But once on the flats the bike will settle into a lower wattage consumption per its programming.

Keep in mind that EU specs require a PAS bike to be limited to 250w nominal so that is probably why these were re-rated to 250W. It's all a bit of a smokescreen in reality. I doubt they actually made any changes whatsoever.
Now that makes complete sense with possible regulatory restrictions being one of them. I do understand that peak wattage may vary but now I understand why it could be different number at different places.

Sign up for a Slickdeals account to remove this ad.

Jan 15, 2025 04:22 AM
51 Posts
Joined Dec 2007
townes75Jan 15, 2025 04:22 AM
51 Posts
Quote from Martog :
That's good news! Did they offer to pay for shop labor to do the swap or are they expecting you to do the work yourself? I'm sure some folks will have the ability to do it themselves but maybe not everyone.
So, I have a bit of a saga (like many with these bikes - ha!); I took it directly to a shop to put it together because I know nothing about bicycle mechanics. They got it mostly together until they realized that the fork was bent and are planning on charging me $70 for their labor (partial assembly and then dismantling because originally Mendham told me that they couldn't find a replacement fork in their warehouse). However, Mendham/Kent says they will reimburse me for this $70.

So, when the new fork comes (fingers crossed), I will take it to the bicycle shop, and they will reassemble the bike and calibrate it, etc., for the $90-$100 they originally quoted me at.
Jan 15, 2025 04:46 AM
65 Posts
Joined May 2015
snowranger69Jan 15, 2025 04:46 AM
65 Posts
After my wife couldn't stop very well on her ride today, I bled the brakes tonight. There was a lot of air in them. Removed the calipers from the frame and inserted a bleed block. Used a syringe at bottom with a fitting to screw into the bleed port. Used a cup at the top. need to turn the levers up so the top bleed screw faces up. Squeezed some mineral oil in and pumped the lever to release the air bubbles. Quickly removed the syringe and replaced the bleed screw. Lever was nice and firm after doing this. Removed the cup, replaced the pads, and bolted calipers back on
1
Jan 15, 2025 07:34 AM
172 Posts
Joined Jan 2014
greatwolfJan 15, 2025 07:34 AM
172 Posts
Quote from snowranger69 :
After my wife couldn't stop very well on her ride today, I bled the brakes tonight. There was a lot of air in them. Removed the calipers from the frame and inserted a bleed block. Used a syringe at bottom with a fitting to screw into the bleed port. Used a cup at the top. need to turn the levers up so the top bleed screw faces up. Squeezed some mineral oil in and pumped the lever to release the air bubbles. Quickly removed the syringe and replaced the bleed screw. Lever was nice and firm after doing this. Removed the cup, replaced the pads, and bolted calipers back on
Can you take some pictures of where on the caliper and lever the bleed port resides? also did you use a kit for this? if so which one?
I'm guessing you removed the rear caliper when bleeding? Otherwise it's probably hard to do if the port happens to be on the side.
Jan 15, 2025 02:09 PM
65 Posts
Joined May 2015
snowranger69Jan 15, 2025 02:09 PM
65 Posts
Quote from greatwolf :
Can you take some pictures of where on the caliper and lever the bleed port resides? also did you use a kit for this? if so which one?
I'm guessing you removed the rear caliper when bleeding? Otherwise it's probably hard to do if the port happens to be on the side.
I borrowed this brand kit from my friend yesterday. It is not the exact same one but it should work. TorchPilot Bike Brake Bleed Kit https://a.co/d/dtOuDbI. EasyMtb. You need a number 11 torx bit to remove the bleed screws. It's on the side of the lever reservoir. So turn the levers up by 90 degrees or so. The bleed port for the caliper is near where the hose enters the housing. Definitely unbolt the caliper because you will get some mineral oil all over the place and you don't want any on the brake pads or rotor
2
Jan 15, 2025 02:55 PM
285 Posts
Joined Jun 2013
freezypopsJan 15, 2025 02:55 PM
285 Posts
Quote from townes75 :
So, I have a bit of a saga (like many with these bikes - ha!); I took it directly to a shop to put it together because I know nothing about bicycle mechanics. They got it mostly together until they realized that the fork was bent and are planning on charging me $70 for their labor (partial assembly and then dismantling because originally Mendham told me that they couldn't find a replacement fork in their warehouse). However, Mendham/Kent says they will reimburse me for this $70.

So, when the new fork comes (fingers crossed), I will take it to the bicycle shop, and they will reassemble the bike and calibrate it, etc., for the $90-$100 they originally quoted me at.

They are sending you a replacement fork? I wasnt offered that option on our 4 bikes that all came with bent forks.
Jan 15, 2025 05:33 PM
172 Posts
Joined Jan 2014
greatwolfJan 15, 2025 05:33 PM
172 Posts
Quote from freezypops :
They are sending you a replacement fork? I wasnt offered that option on our 4 bikes that all came with bent forks.
The forks on all 4 of them are like that? That sounds like more than just bad luck.

I just called Kent's support number regarding my misaligned fork. They also informed me they have replacement fork available. I emailed them couple of photos showing the fork problem. My claim is processing now and the rep said it should take a day or two. I'll report back how it goes.
Jan 15, 2025 06:46 PM
195 Posts
Joined Mar 2015
MartogJan 15, 2025 06:46 PM
195 Posts
While I'm bummed about my sucky brakes and the general shipping damage, I must say that Kent support was really good. They're sending out replacement parts and crediting me a bit for the cost of the repairs.

It stinks that a bunch of us are having to deal with issues, but at least in my case, Kent is stepping up to create a fair outcome.

Sign up for a Slickdeals account to remove this ad.

Jan 15, 2025 10:05 PM
640 Posts
Joined Sep 2014
acbharath14Jan 15, 2025 10:05 PM
640 Posts
Quote from Martog :
While I'm bummed about my sucky brakes and the general shipping damage, I must say that Kent support was really good. They're sending out replacement parts and crediting me a bit for the cost of the repairs.

It stinks that a bunch of us are having to deal with issues, but at least in my case, Kent is stepping up to create a fair outcome.
Good to know there is some relief in case of warranty issues.
Last edited by acbharath14 January 15, 2025 at 03:14 PM.

Leave a Comment

Unregistered (You)

Popular Deals

Trending Deals