Topeak Road Master Blaster Frame Fit Pump

Customer Reviews (3)
5 / 5| Write your review
£26.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
Classic modern frame fit pump for road bikes. Lightweight and highly efficient to pump up those high pressure road tyres. Pumps to 160 psi. Integrated seal and dust cap. Padded pump head with internal handle lock for easy gripping and handling. Durable aluminium thumb-lock. Machine cut, sleek aluminium barrel; durable and lightweight.
Small depressions located at both ends also allows fitting to frames with pump pegs
Sizes available:
S for frame sizes between 43 - 49cm - (actual pump size 37 - 42.5cm)
M for frame sizes between 49 - 54cm - (actual pump size 42 - 47.5cm)
L for frame sizes between 54 - 59cm - (actual pump size 47 - 52.5cm)
XL for frame sizes between 59 - 64cm - (actual pump size 52 - 57.5cm)
Product Reviews (3)
Questions & Answers (14) Q & A
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Product Reviews (3)
Overall Product Rating 5 / 5
Excellent and Reliable Pump
By Shreddy Weait
23 Jun 2020
5 / 5
I recommend this product
ConsNothing really
ProsGood frame fit, works very well and quick to use
Excellent pump that only ways a nats what it more than a compact pump but does the job 200% better!!
Frame fit
By Mike Hutchinson
12 May 2020
5 / 5
I recommend this product
Conssize does matter - smaller sizes require more effort than large
ProsBetter than mini pumps
I prefer frame fit to min pumps. I have 3 - for bikes with different seat tubes.
15 Sep 2018
5 / 5
I recommend this product
ProsDesign Good
These excellent Topeak Pumps can be used as frame fitting or pegs.
Questions & Answers (14)
Compressed length of M & L pumps?
30 Aug 2023
Two bikes - TT spaces for pump are 54cm, & 53cm. What are compressed lengths of the M & L pumps? Just wondering which will be best - potentially one pump for both bikes.
Hello & thank you for your enquiry.
M for frame sizes between 49 - 54cm - (actual pump size 42 - 47.5cm) - compressed to expanded.
Kind regards, pc 31/8/23.
Topeak Master Blaster L or XL for a 52cm top tube?
20 May 2023
I'm looking to buy the Topeak Master Blaster frame pump but am inbetween sizes. My bike is a 58 frame with a top tube of 52cm. Shall I order a L or XL? Thanks.
Looking at the sizing guidelines the large pump will fit your requirements slightly better, both will fit your frame though. SK 22/05/23
My frame size is 54cm. Should I go with the medium or large? (Under top tube is 51cm)
14 Aug 2022
Sor this we would suggest Medium size,

JK 16.08.22
My bike has an under top tube measurements of 56 cm what size Will fit my guess is a large
01 Aug 2022
Yes a large is what we would suggest here :)

JK 01.08.22
Dose the pump head have the capacity to work with pump pegs on the headtube
07 Jun 2022
Yes, it does, there is provision for location into pump pegs.

JK 08.06.22
Hello, What size do I need. inner head tube to seat tube is 46cm
15 Jul 2020
You will need a Medium, as the pump expands to fit the frame, thus a 46cm long space means the M for frame sizes between 49 - 54cm - (actual pump size 42 - 47.5cm) will fit.
Sizing for topeak master blaster
27 Jul 2018
Hi.The length under the top tube to where the pump will be placed on my Pinnacle Laterite bike is 49.5 cm. What size pump do I need to order please? I previously ordered a Xl and that was too big!
Hi there,

We would recommend using the medium size.

Will this work with Presta valve? What size for pegs that are 42cm from peg to peg?
26 Oct 2017

This pump will be fine for use with Presta valves. We would recommend a size small for use with your frame.

47.5cm, Large or Medium?
01 Aug 2017
The gap where the pump would sit under the top tube is 47.5cm. Should I got with Medium or Large?
Hi, we suggest the Medium size. Thanks.
Pump Size
27 Jan 2017
Hello. I have an old bike with 2 pump pegs on the seat tube with 46.5 cm between the tips of the pegs . Which is the correct size of pump please? Thanks

As your frame has a distance of 46.5cm between the pump pegs it is the medium sized pump that you need.

Frame Pump For Thorn Mercury 610L
08 Sep 2016
Can you recommend a pump to fit this frame
Presta valve. Do not like Mini pumps.

Jim Palmer

As there are no pump pegs on your bike you'll need to go for a pump that can work without pegs like this Topeak pump. You'll need the XL size to fit the top tube on your bike.

Best Frame Pump For Thorn Discovery Tandem?
07 Mar 2016
The bike just has one pump peg, what's the pump you'd recommend ? It's about 50 cm to frame angle. My mini pump struggles to get over 50 psi. Graham

The frame pump we recommend is the Zefal HPX (SJSC part number 37684) these are designed to fit to a single peg and are what we have fitted to our bikes for a large number of years.

Topeak Road Masterblaster™ Still Confused By Sizing!
13 Nov 2015
Looking at the Topeak, to put under my top tube (49cm gap), am I correct in going for the large (47 to 52.5cm)?

Unfortunately for some reason Topeak bases its sizing on the frames full size rather than any of the lengths relevant to where you are going to fit a pump. You are correct though for your frame you would need the large size.

Which Frame Pumps Will Fit A 57Cm Frame (50 Cm Opening)?
09 Mar 2015
Sorry but I'm totally confused since some descrptions (Zefal) refer to the pump length (ok got that) others refer to frame size (understand that but then the topeak shows illustrations highlighting the top tube measurement which is different to those given in the size list and others are ambiguous. Iin the case of the Silca I assume its frame size but for a sloping tube compact. Is it a ploy to make us all buy the Park Tool?

I think Topeak Large/Zefal size 3 and of course Park Tool are my options but I'd like to be sure since returns are a pain. I know its a tiny thing and you have loads more to do and information comes from manufacturers but using a consistent measurement ie pump actual size would be a real help . .. .... help!!

Any of the 3 options you have suggested would be suitable. The Silca, Zefal and Park Tool all refer to opening size (actual pump length) where as the Topeak is referring to full frame size and the pictures showing the top tube measurements are the actual size of each size of pump. I will update the sizes on the Topeak so all the pumps show the actual length of the pumps in the sizing to help choose the correct size.