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TORPEDO7 Chain Tensioners for 10mm Horizontal Drop-Out


Rated 3.0 out of 5.0 by 2reviewer.

Easily adjust and maintain perfect chain tension on your BMX or single speed with these Torpedo7 chain tensioners designed for horizontal dropouts. Suitable for 10mm axle diameters.


  • Alloy construction
  • Suits 10mm diameter axle
  • For Horizontal dropouts only
  • Sold as a pair
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4 out of 5
terrigal NSW
Chain tensioners
2012-12-09 17:28:47.0

good fitment ,easy adjustment
Cheap price looks part of bike

2 out of 5
Does not work with horizontal drop outs if axle is not long enough.
2012-11-29 06:47:37.0

I bought 3 pairs on the assumption that it will work with horizontal drop outs. Short answer is It didn't work for me.
As far as I know, these are designed for track ends, not horizontal drop outs. The raised section around where the axle fits in *and the bolt* is meant to sit in the track end slot, if the slot was rear facing.
For it to work on a front facing horizontal drop out, the chain tensioner needs to be flipped around (as per attached picture).
This means the chain tensioner takes up a fair amount of thread for where the axle nut would be threaded on to (for a solid axle). I had around 16mm or threaded axle protruding from the outside face of the horizontal drop out - this was not enough, my nut was half sitting off the axle.
So, in summary, don't get this for horizontal drop outs and if your axle isn't super long (where the threaded section protrudes from the outside face of horizontal drop out by significantly more than 16mm).
The Genetic Chain tug - in theory - should work better, although you may need to file down a raised section that sits in the slot (again, I believe the is designed for track ends). I don't have this, yet, but as the minimum thickness of the chain tensioner isn't limited by the diameter of the bolt (the Genetic chain tensioner is thinner), the nut should be able to be threaded fully onto the axle.

Shipping Policy

At Torpedo7 we aim to get your order to you as fast as possible, at a price that won’t break the bank. For NZ standard delivery orders, we use CourierPost overnight delivery (when ordered before 3:30pm, Monday – Thursday) – excluding rural delivery addresses & bulky products.

Orders received between 3:30pm Thursday and 3:30pm Friday will be dispatched on Friday but you may not see delivery of them until Monday. For orders received after 3pm on Friday and over the weekend your order will be processed for delivery and dispatched on Monday and should arrive with you Tuesday.

For some of our bulkier products we can’t use CourierPost and use a number of different providers depending on the product and your location. Due to the nature of these products please note that delivery can take a little longer and is typically 3-5 days from when we dispatch.

Click & Collect general orders when ordered before 3:30pm Monday-Thursday are generally available for store collection after 1pm the following day. We will contact you by text, email or phone call when your order is ready to collect. Click & Collect general orders when ordered after 3:30pm or on weekends will be dispatched the next business day. Click & Collect bulky orders will take 3-5 business days. In all cases you will receive an email notification or call from the local Torpedo7 store once it is ready for collection. Click here to learn more about Click & Collect.

For all orders you will receive a Track & Trace reference via email upon dispatch.

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Dispatch & Shipping Times:

  • Overnight delivery for general items when ordered before 3pm Monday-Thursday.
  • Next business day dispatch for orders placed after 3pm or on weekends. Next business day delivery following dispatch for general items, 3-5 business days for rural delivery and/or bulky.
  • 2-3 business days for Click & Collect orders
  • 3-5 Business days rural delivery
  • 3-5 Business days bulky items

Note: Delivery times will be impacted by statutory holidays as courier companies do not operate on these days. Business days are classed as Monday-Friday and exclude statutory holidays.

Shipping Cost:

Shipping Category Price Example Products

Click & Collect

$3.99 (NZD)

Order online, pick up in a Torpedo7 Store or partner location.
General Items only.
Apparel, shoes, small bike parts, goggles etc…
Excludes bulky (Class 2 - 6).

General Items

$5.99  for Club Members
(Free to Join)

Apparel, shoes, small bike parts, goggles - General products that aren’t bulky or heavy

General Items

$7.50 for non-club members

Apparel, shoes, small bike parts, goggles - General products that aren’t bulky or heavy

Class 2


Bike forks, small tents, small fishing rods

Class 3


Skis, Snowboards, wakeboards, wheelsets, bike racks, surfboards under 7ft – large but not heavy

Class 4

North Island $40
South Island $80

Bikes, framesets, large cycle trainers, surfboards 7-8ft

Class 5

North Island $60
South Island $100

SUP’s, longboards over 8ft, canvas tents, large cooler boxes

Class 6

North Island $75
South Island $140

Kayaks, XL Canvas tents, treadmills – oversized items, very heavy.

Shipping costs are calculated based on the volumetric size of the product, and the overall weight of the product. The shipping charge will be calculated when add products to the shopping cart.

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