[outback82]

Hi, I bought a used Hightower, i think it is the first V2 because the frame colour is blue glossy. I want to replace the stock fox float and was looking at shock size but can't understand what size I need. What is my20 and my21?
SHOCK SPECS

• Rear Shock Eye-to-Eye:210
• Stroke:MY20 52.5mm, MY21 55mm
• Mounting Bushing Width Front:20x8
• Mounting Bushing Width Rear:30x8

 

[cogswell23]

Hi, I bought a used Hightower, i think it is the first V2 because the frame colour is blue glossy. I want to replace the stock fox float and was looking at shock size but can't understand what size I need. What is my20 and my21?
SHOCK SPECS

• Rear Shock Eye-to-Eye:210
• Stroke:MY20 52.5mm, MY21 55mm
• Mounting Bushing Width Front:20x8
• Mounting Bushing Width Rear:30x8

MY stands for model year. When Hightower was first released in summer of 2019 (model year 2020), they specced it with a 210x52.5mm shock, giving it 140mm of rear travel. In summer of 2020 when they updated spec and colors (model year 2021) they changed to a 210x55mm shock resulting in a bump in travel to 145mm. There’s no difference in the frame, other than colors, between model years. As you’re shopping for a shock, you can go with either a 52.5mm or a 55mm stroke. I think the 55mm will be easier to find, and will of course give you a little additional travel.

 

[outback82]

MY stands for model year. When Hightower was first released in summer of 2019 (model year 2020), they specced it with a 210x52.5mm shock, giving it 140mm of rear travel. In summer of 2020 when they updated spec and colors (model year 2021) they changed to a 210x55mm shock resulting in a bump in travel to 145mm. There’s no difference in the frame, other than colors, between model years. As you’re shopping for a shock, you can go with either a 52.5mm or a 55mm stroke. I think the 55mm will be easier to find, and will of course give you a little additional travel.

this is definitely an amazin news. Thanks

 

[outback82]

i'm just taking a look on second and and brand new shocks but i'm finding not many shocks that fits on the frame because of the Mounting Bushing Width. I'm seeing a lot of "standard-standard" but not many 20x8 and 30x8

 

[Mike Aswell]

By a bushing kit in the size you need for the shock you want.

 

[cogswell23]

i'm just taking a look on second and and brand new shocks but i'm finding not many shocks that fits on the frame because of the Mounting Bushing Width. I'm seeing a lot of "standard-standard" but not many 20x8 and 20x30

If you’re buying a new shock, it won’t come with mounting hardware at all, and you’ll need to buy it separately. If you’re buying second hand, the shock may come with the incorrect mounting hardware, but you’ll just remove it and put on the correct hardware in its place. You’ll want a 20x8 bushing for the front, and for the rear, a 30x8 bearing is recommended for smoother suspension operation.

 

[outback82]

By a bushing kit in the size you need for the shock you want.

ok, does the brand of the bushing kit matters? i mean, if i buy i fox shock, can i buy a rock shock bushing kit?

 

[REZEN]

ok, does the brand of the bushing kit matters? i mean, if i buy i fox shock, can i buy a rock shock bushing kit?

Sometimes. Anyway as you have a Hightower V2, for the rear I recommend this RWC needle bearing kit for the rear to keep the rear link from binding. Fox has a roller bearing kit for their shocks, but its best to have their tools which can be costly. I did it this way but also bought the RWC needle bearing kit, as it will allow for easier service.

Front: just buy whatever brand hardware for the shock you buy.

 

[cogswell23]

ok, does the brand of the bushing kit matters? i mean, if i buy i fox shock, can i buy a rock shock bushing kit?

The eyelet size is standardized, so bushing kits should be cross-compatible across brands. The Bearing Mount kits are probably also cross-compatible but I’m not certain on that. I can’t think of why they wouldn’t be, but that doesn’t mean I’m not missing something.

 

[outback82]

Sometimes. Anyway as you have a Hightower V2, for the rear I recommend this RWC needle bearing kit for the rear to keep the rear link from binding. Fox has a roller bearing kit for their shocks, but its best to have their tools which can be costly. I did it this way but also bought the RWC needle bearing kit, as it will allow for easier service.

Front: just buy whatever brand hardware for the shock you buy.

Unfortunately I cannot buy that component because i live in italy. I found this, is it ok?

Shock hardware 30x8 Cane Creek Rear Shock Absorbers, Shock Absorbers

Shock hardware 30x8 Rear Shock Absorbers, Shock Absorbers spare parts, Price 15.5EUR Cane Creek Code 421640859 0840226081397 840226081397

www.ridewill.it

Another question. I found a rock shox deluxe rc3 with front size "standard". Is it meant for 20x8 so no adapter needed?

The shock specs are:

SHAFT EYELET	Standard
BODY EYELET	Standard

 

[REZEN]

The eyelet is just the hole in the front/rear of the shock without the sleeve, which is a standardized dimension.

Fox shocks at least ship with the sleeve in place which is the tan insert in this pic AND the kits come with one.

Rockshox uses a bushing which is not in their kits
But here it is

Then Fox has their roller bearing kit as I stated, which is best used with this expensive tool.
And if your Hightower V2 came with a Rockshox shock, then it came with a roller bearing as seen here which is integrated into the shock shaft, but can be changed to a more typical standard mount

Keep in mind, some of the links may not reference the part YOU NEED, such as the typical standard mount...... this is more for a reference of different designs and what the products will look like.

 

[outback82]

The eyelet is just the hole in the front/rear of the shock without the sleeve, which is a standardized dimension.

Fox shocks at least ship with the sleeve in place which is the tan insert in this pic AND the kits come with one.

Rockshox uses a bushing which is not in their kits
But here it is

Then Fox has their roller bearing kit as I stated, which is best used with this expensive tool.
And if your Hightower V2 came with a Rockshox shock, then it came with a roller bearing as seen here which is integrated into the shock shaft, but can be changed to a more typical standard mount

Keep in mind, some of the links may not reference the part YOU NEED, such as the typical standard mount...... this is more for a reference of different designs and what the products will look like.

Thank you for your detailed informations. So if I got it, for mounting any 210x55 rock shox shock on my Santa Cruz (which frame has front mounting bushing front 20x8 and rear mounting bushing of 30x8 and came with a fox shox) to make sure the shock fits, i have to buy those two mounting hardware. Correct?

Amazon.com

Amazon.com : RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2", 8 x 20.0 : Sports & Outdoors

Amazon.com : RockShox Rear Shock Mounting Hardware - 3-Piece, 1/2", 8 x 20.0 : Sports & Outdoors

www.amazon.com

 

[REZEN]

IF your RockShox doesn't come with the roller bearing eyelet, then yes, those are the correct parts, but do not forget the bushings, which I am unsure if your Rockshox ship with the bearings. Wise to have a set anyway for maintenance.