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Updated October 21, 2026 · CommuteCue Editorial Team

A DECE OASIS vs Helokeep

A DECE OASIS scores 8.9 and Helokeep 9.3 out of 10. Compare their differences and shared features below.

A DECE OASIS

8.9/10
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Helokeep

Higher score in this comparison

9.3/10
Visit

A DECE OASIS vs Helokeep: the differences

A DECE OASIS vs Helokeep
CompareA DECE OASISReviewVisitVisitHelokeepReviewVisitVisit
Reference modelsADO Air 20S, ADO Air 28, ADO Air Carbon Pro, ADO Air One UltraHelokeep CD20 Long-Range Cargo Electric Bike, Helokeep 26M Electric Mountain Bike, Helokeep 26P Electric Mountain Bike, Helokeep COCO U Folding Electric Bike
Price from€1,199$499
Price up to€2,499$1,999
Nominal motor power (W)2501,100
Assist classEU 25Us class 2
Largest battery (Wh)3701,588.8Higher
Claimed range (km)100241.4Higher
Lightest model (kg)14.7Lower31.7
Maximum payload (kg)120250Higher
Belt driveYesHas itNo
Frame warranty5 yearsHigher2 years
Battery warranty2 yearsHigher0.25 years
Sales modelBothDirect
Money-back period14 days30 daysHigher
MarketsAT, BE, BG, HR, CZ, DK, EE, FI, FR, DE, GR, HU, IE, IT, LV, LT, LU, MT, NL, PL, PT, RO, SK, SI, ES, SEUS
ThrottleNot confirmedYes
Service networkOwnNot confirmed

Same on both: Motor position (Hub), Removable battery (Yes), Finance (Yes).

We earn a commission when you sign up through links on this site. Partner status can affect where a brand appears in our rankings. Partners with a live offer in your country come first, then every other brand by score.

Key differences

  • Helokeep scores higher overall: 9.3 vs 8.9.
  • Largest battery (Wh) is higher at Helokeep: 1,588.8 vs 370.
  • Claimed range (km) is higher at Helokeep: 241.4 vs 100.
  • Lightest model (kg) is lower at A DECE OASIS: 14.7 vs 31.7.
  • Maximum payload (kg) is higher at Helokeep: 250 vs 120.
  • Belt drive: only A DECE OASIS.
  • Frame warranty is higher at A DECE OASIS: 5 years vs 2 years.
  • Battery warranty is higher at A DECE OASIS: 2 years vs 0.25 years.
  • Money-back period is higher at Helokeep: 30 days vs 14 days.
  • Support channels: only Helokeep offers Phone.

Our verdict on each

A DECE OASIS

A DECE OASIS suits riders who want folding, city and cargo bikes from a single maker, and who live in the European markets listed for delivery. Entry prices start at €1,199, the frame warranty runs 5 years, and support runs on email and help centre only.

Read the full A DECE OASIS review

Helokeep

Helokeep suits US riders who want a single direct seller across cargo, mountain, folding, commuter and fat-tire shapes, with no dealer network in between. Entry pricing is $499, the priciest model reaches $1,999, and refunds run 30 days against battery cover of 0.25 years.

Read the full Helokeep review

Score breakdown

A DECE OASIS vs Helokeep
AreaA DECE OASISHelokeep
Cost8.9Entry at €1,199 and a ceiling of €2,499 sit above the folding field, and finance is offered to spread the cost.9.6HigherEntry at $499 rises to $1,999 at the top, and Helokeep ranks 16 of 149 brands on starting price.
Offer8.9Belt drive, a removable battery, 100 km claimed range and 14 day returns across folding, city and cargo bikes.9.1HigherA single catalogue covers cargo, emtb and step through, with claimed range 241.4 km, payload 250 kg and a 1,588.8 Wh battery on the cargo bike.
TrustNot confirmed8.9Frame cover runs 2 years and refunds 30 days, but battery cover sits at 0.25 years, and selling is direct.

How they place

A DECE OASIS vs Helokeep
RankingA DECE OASISHelokeep
Electric bikes30 of 1855 of 185
Commuter and city e-bikes27 of 1435 of 143
Folding e-bikes25 of 904 of 90
Cargo e-bikes12 of 694 of 69

Every fact side by side

A DECE OASIS vs Helokeep
FactA DECE OASISHelokeep
Bike typesFolding, City, CargoCargo, Emtb, Step through, Folding, Commuter, Fat tire
Motor brandBafangNot confirmed
BrakesHydraulic discHydraulic disc, Mechanical discCovers more
CertificationsNot confirmedUl 2849
Legal entityNot confirmedHONG KONG JIANGHE INTERNATIONAL TRADING CO., LIMITED
HeadquartersNot confirmedHong Kong
Support channelsEmail, Help centreEmail, Phone, Help centreCovers more

Where each stands against the rest

A DECE OASIS vs Helokeep
FactA DECE OASISHelokeepMedian
Nominal motor power (W)250below the median1,100highest quarter425
Largest battery (Wh)370lowest quarter1,588.8highest quarter800.8
Claimed range (km)100below the median241.4highest quarter138.5
Lightest model (kg)14.7lowest quarter31.7above the median25.7
Maximum payload (kg)120lowest quarter250highest quarter158.76
Frame warranty5 yearshighest quarter2 yearsat the median2 years

Median across 144 listed brands.

Pros and cons

A DECE OASIS

Pros

  • Belt drive and a removable battery come as standard, a pairing that suits riders who would rather stop oiling chains on a bike kept in a hallway.
  • Frame warranty of 5 years with 2 years on the battery.
  • Hydraulic disc brakes across the line, hydraulic disc, which matters on wet city streets.

Cons

  • Support runs on email and help centre only, so a fault gets handled by email or the help centre and not by phone.
  • Nominal power of 250 W sits at the floor of what the category lists, so steep routes mean more rider input.
  • Repairs go through the brand's own service, own, which means returning the bike rather than visiting a nearby dealer.

Helokeep

Pros

  • A single seller covers cargo, mountain, folding, commuter, step-through and fat-tire shapes: cargo, emtb and step through.
  • Entry pricing of $499 keeps a new e-bike purchase within reach.
  • The cargo bike claims 241.4 km of range and takes 250 kg of load, and it has a throttle.

Cons

  • Battery cover is 0.25 years against a frame warranty of 2 years, so the pack is the weak point of the policy.
  • Support runs on email, phone and help centre only, with no live chat or community forum among the listed channels.
  • Shipping is listed for US alone, so riders outside that market have no stated delivery.

Who each suits

A DECE OASIS

Who it suits

  • Riders who want folding, city and cargo bikes from a single maker, with 5 year frame cover on each.
  • Households replacing a second car for short urban trips, who can send a bike back within 14 days if it does not suit.
  • Buyers who want belt drive and a removable battery without giving up folding, a mix the city, hybrid and step through range at KALKHOFF does not include.

Who should look elsewhere

  • Riders outside AT, BE and BG, since shipping is limited to the listed countries.
  • Anyone who wants to sort a problem by phone, because email and help centre covers email and a help centre.
  • Shoppers who want a long model list to browse, since the reference line is short and centred on a folding bike and larger wheeled versions.

Helokeep

Who it suits

  • US riders who want cargo or mountain shapes from a single direct seller.
  • Commuters who want a long claimed range on the cargo bike alongside a 30 days refund window.
  • Buyers who want a folding bike and a cargo bike in the same catalogue rather than across brands.

Who should look elsewhere

  • Tern buyers, who want a dedicated maker of cargo, commuter and folding rather than a broad direct catalogue.
  • Kalkhoff buyers, who want city, hybrid and step through from a brand that is not a direct-only seller.
  • Riders keeping an e-bike for years without battery worries, since battery cover is 0.25 years.

Current offers

Helokeep

Current offer

  • Discount code

    Get $20 OFF Your First Order: $20

    First order

    Source, checked September 30, 2026

Country by country

A DECE OASIS vs Helokeep
CountryA DECE OASISHelokeep
AustriaYesNo
BelgiumYesNo
BulgariaYesNo
CroatiaYesNo
CzechiaYesNo
DenmarkYesNo
EstoniaYesNo
FinlandYesNo

8 of 27 countries where either is available.

Questions about each

A DECE OASIS

How much do A DECE OASIS bikes cost?+

Prices start at €1,199 for the cheapest bike in the range and reach €2,499 at the top. The middle of the range covers the larger frames and the cargo options, so a commuter and a load carrier come from the same maker. The figure quoted is the price of the bike itself.

Which models are in the range?+

The reference line covers a folding bike, a larger wheeled model and two higher specification versions, so the range spans small frames and bigger wheels. The lightest bike is 14.7 kg, which counts if you carry it up stairs or onto a train, and the payload rating reaches 120 kg on the load carrying frames.

Helokeep

What does a Helokeep e-bike cost at the entry point?+

Helokeep sells direct, and the entry price is $499. The priciest bike in the catalogue reaches $1,999, so the gap between the cheapest and the top end is wide. Riders pay a purchase price once, and nothing on the bike is set to renew afterwards.

Is there a subscription or renewal fee to pay after buying?+

No subscription sits behind the purchase. Bikes are bought outright, so the $499 entry point is what you pay at the point of sale and nothing renews later. The only ongoing commitments are servicing and the warranty, with frame cover of 2 years and battery cover of 0.25 years.

Other options to compare

A DECE OASIS

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Helokeep

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